Tag Archives: short pitch roller chains

China Good quality High Strength and Wear Resistance Short Pitch Precision 80h-3 Heavy Duty Series Triplex Transmission Roller Chains and Bush Chains

Product Description

Heavy Duty Series Triplex Roller Chains & Bush Chains

 

ISO/ANSI

Chain No.
 

Pitch
P
mm
 
Roller diameter

d1max
mm
 

Width between inner plates
b1min
mm
 
Pin diameter

d2max
mm
 

Pin length Inner plate depth
h2max
mm
 
Plate thickness
Tmax
mm
 
Transverse pitch
Pt
mm
 
Tensile strength
Qmin
kN/lbf
 
Average tensile strength
Q0
kN
 
Weight per meter
q kg/m
 
Lmax
mm
Lcmax
mm
80H-3 25.400 15.88 15.75 7.92 101.4 102.9 24.00 4.00 32.59 170.1/38659 203.5 9.42

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CZPT which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CZPT paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CZPT the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CZPT flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CZPT Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Short Pitch Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
Available

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heavy duty chain

Can heavy-duty chains be used in automotive and transportation equipment?

Yes, heavy-duty chains can be used in various automotive and transportation equipment applications. These chains are designed to handle heavy loads and provide reliable power transmission in demanding conditions, making them suitable for a wide range of automotive and transportation-related tasks.

In automotive applications, heavy-duty chains can be found in timing systems, where they ensure precise synchronization between the engine’s camshaft and crankshaft. They are also used in transfer cases, differentials, and other drivetrain components that require robust and dependable power transmission.

Transportation equipment, such as trucks, buses, and industrial vehicles, often rely on heavy-duty chains for various functions, including suspension systems, lifting mechanisms, and steering systems. In these applications, the chains must withstand continuous use and exposure to environmental factors.

Heavy-duty chains are engineered to offer exceptional durability, high tensile strength, and resistance to wear, making them a reliable choice for automotive and transportation equipment that operates under heavy loads and challenging conditions.

heavy duty chain

What are the temperature limits for heavy-duty chains in extreme environments?

Heavy-duty chains are designed to perform well in a wide range of temperatures, but their temperature limits in extreme environments depend on the materials they are made from and the specific application.

Generally, heavy-duty chains can handle temperatures ranging from -20°C to 200°C (-4°F to 392°F) in standard operating conditions. However, in extreme environments, such as foundries, steel mills, or extremely cold regions, special high-temperature or low-temperature chains may be required.

For high-temperature applications, heavy-duty chains made from heat-resistant materials, such as alloy steels or stainless steels, can withstand temperatures above 200°C (392°F) without losing their structural integrity.

On the other hand, in extremely cold environments, heavy-duty chains made from low-temperature materials, like specific grades of carbon steel or nickel-plated chains, can maintain their strength and flexibility at temperatures as low as -40°C (-40°F) and even lower.

When operating heavy-duty chains in extreme environments, it is essential to consider factors such as thermal expansion, contraction, and possible lubrication challenges. Adequate lubrication is crucial to ensure smooth operation and to protect the chains from wear and corrosion caused by temperature variations.

In critical applications with extreme temperature conditions, consulting with chain manufacturers or industry experts can help determine the most suitable heavy-duty chain materials and configurations for the specific environment to ensure optimal performance and longevity.

heavy duty chain

What is a heavy-duty chain and what are its applications in various industries?

A heavy-duty chain is a type of chain designed to withstand high loads, severe conditions, and challenging environments. It is constructed using strong and durable materials, making it suitable for applications that require robust and reliable performance. Here are the details of heavy-duty chain and its applications in various industries:

Definition: A heavy-duty chain is characterized by its larger and stronger components compared to standard chains. It is commonly made from materials such as alloy steel, stainless steel, or carbon steel, and is designed to handle heavy loads, high impact forces, and resistance to wear and fatigue.

Applications: 1. Construction and Infrastructure: Heavy-duty chains are extensively used in construction equipment, including excavators, bulldozers, and cranes. They play a vital role in lifting, digging, and moving heavy materials on construction sites.

2. Mining and Extraction: In the mining industry, heavy-duty chains are employed in large mining equipment like draglines, loaders, and shovels. They are crucial for the extraction and transportation of minerals and ores.

3. Material Handling: Heavy-duty chains are found in various material handling applications, such as overhead cranes, hoists, and conveyor systems. They ensure the smooth and safe movement of heavy goods in industrial facilities and warehouses.

4. Agriculture: In agricultural machinery, heavy-duty chains are used in equipment like combines, tractors, and balers. They handle the stresses of harvesting, plowing, and baling operations in the field.

5. Automotive Manufacturing: Heavy-duty chains are utilized in automotive assembly lines for vehicle assembly and production processes.

6. Forestry: Chainsaw machines and logging equipment rely on heavy-duty chains for felling, bucking, and skidding trees in forestry operations.

7. Marine: Heavy-duty chains are applied in marine environments for anchor lines, mooring systems, and towing operations.

8. Aerospace: Heavy-duty chains are used in aircraft for various applications, including flight control mechanisms and landing gear.

9. Energy and Power Generation: Heavy-duty chains are used in power plants for conveying coal and biomass, as well as in wind turbines for pitch and yaw control.

10. Oil and Gas: Heavy-duty chains are employed in oil rigs and drilling equipment for the extraction of petroleum and natural gas.

Overall, heavy-duty chains are essential components in industries that require reliable, robust, and high-load bearing systems. They contribute to the smooth and efficient operation of various machinery, ensuring safety and productivity in diverse industrial applications.

China Good quality High Strength and Wear Resistance Short Pitch Precision 80h-3 Heavy Duty Series Triplex Transmission Roller Chains and Bush Chains  China Good quality High Strength and Wear Resistance Short Pitch Precision 80h-3 Heavy Duty Series Triplex Transmission Roller Chains and Bush Chains
editor by CX 2023-09-01

China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains

Product Description

Heavy Duty Series Triplex Roller Chains & Bush Chains

 

ISO/ANSI

Chain No.
 

Pitch
P
mm
 
Roller diameter

d1max
mm
 

Width between inner plates
b1min
mm
 
Pin diameter

d2max
mm
 

Pin length Inner plate depth
h2max
mm
 
Plate thickness
Tmax
mm
 
Transverse pitch
Pt
mm
 
Tensile strength
Qmin
kN/lbf
 
Average tensile strength
Q0
kN
 
Weight per meter
q kg/m
 
Lmax
mm
Lcmax
mm
180H-3 57.150 35.71 35.48 17.46 215.7 224.8 53.60 8.00 69.16 843/191589 1011.0 44.10

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CZPT which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CZPT paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CZPT the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CZPT flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

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The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Short Pitch Chain
Samples:
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heavy duty chain

What are the limitations of using heavy-duty chains in certain applications?

While heavy-duty chains are versatile and well-suited for many applications, there are some limitations to consider when using them in certain scenarios:

1. Weight and Size: Heavy-duty chains can be large and heavy, which may not be suitable for applications with limited space or weight restrictions.

2. Noise and Vibration: Due to their rugged design and high strength, heavy-duty chains can generate more noise and vibration compared to other chain types. This may be a concern in applications where noise reduction is essential.

3. Cost: Heavy-duty chains often come with higher manufacturing costs due to the use of premium materials and precision engineering. As a result, they may not be the most cost-effective solution for some low-load or less demanding applications.

4. Corrosion: While some heavy-duty chains are made from corrosion-resistant materials, others may be more susceptible to rust and corrosion in harsh environments. Proper maintenance and lubrication are essential to extend the chain’s lifespan in such conditions.

5. Operating Speed: Heavy-duty chains may have limitations in terms of operating speed compared to specialized high-speed chains. In applications requiring rapid movement, it’s essential to select the appropriate chain type.

6. Flexibility: The robust design of heavy-duty chains offers strength but may limit flexibility. In applications where the chain needs to traverse complex paths or tight bends, alternative chain designs may be more suitable.

7. Environmental Considerations: Heavy-duty chains may not be the best choice in environments with stringent environmental regulations or where lightweight, eco-friendly alternatives are preferred.

Despite these limitations, heavy-duty chains remain an excellent choice for many demanding applications, providing durability, reliability, and high performance under challenging conditions.

heavy duty chain

How do heavy-duty chains handle variable speed and torque requirements?

Heavy-duty chains are designed to handle variable speed and torque requirements in various industrial applications. Their robust construction and high-quality materials allow them to withstand the stresses associated with changing operating conditions. Here’s how they handle variable speed and torque:

1. Strength and Durability: Heavy-duty chains are engineered to handle high torque and heavy loads without deformation or failure. Their sturdy construction ensures they can withstand the increased forces that come with variable speed and torque.

2. Lubrication: Proper lubrication is crucial for heavy-duty chains, especially in applications with variable speed and torque. Lubrication reduces friction and wear, preventing premature failure and ensuring smooth operation even under changing conditions.

3. Precision Engineering: Heavy-duty chains are manufactured with precision to ensure uniformity and consistent performance. This precision allows them to maintain their integrity and function reliably in applications with varying speed and torque requirements.

4. Design Flexibility: Some heavy-duty chains come with specific design features that improve their adaptability to variable speed and torque. For instance, certain chain types may have specially designed link plates or components to reduce wear and noise at high speeds.

5. Temperature Resistance: Heavy-duty chains are often capable of handling a wide range of temperatures, which is beneficial in applications with variable environmental conditions.

6. Compatibility with Sprockets: Heavy-duty chains must be paired with compatible sprockets to ensure smooth engagement and prevent excessive wear. Matching the chain and sprocket correctly is crucial for optimal performance under varying speed and torque.

7. Regular Inspection and Maintenance: To ensure heavy-duty chains continue to handle variable speed and torque effectively, regular inspection and maintenance are essential. This includes checking for wear, proper lubrication, and addressing any issues promptly.

Overall, heavy-duty chains are engineered to be robust and reliable, making them well-suited for applications with changing speed and torque requirements. When appropriately selected, installed, and maintained, they contribute to the smooth and efficient operation of various industrial systems.

heavy duty chain

What is a heavy-duty chain and what are its applications in various industries?

A heavy-duty chain is a type of chain designed to withstand high loads, severe conditions, and challenging environments. It is constructed using strong and durable materials, making it suitable for applications that require robust and reliable performance. Here are the details of heavy-duty chain and its applications in various industries:

Definition: A heavy-duty chain is characterized by its larger and stronger components compared to standard chains. It is commonly made from materials such as alloy steel, stainless steel, or carbon steel, and is designed to handle heavy loads, high impact forces, and resistance to wear and fatigue.

Applications: 1. Construction and Infrastructure: Heavy-duty chains are extensively used in construction equipment, including excavators, bulldozers, and cranes. They play a vital role in lifting, digging, and moving heavy materials on construction sites.

2. Mining and Extraction: In the mining industry, heavy-duty chains are employed in large mining equipment like draglines, loaders, and shovels. They are crucial for the extraction and transportation of minerals and ores.

3. Material Handling: Heavy-duty chains are found in various material handling applications, such as overhead cranes, hoists, and conveyor systems. They ensure the smooth and safe movement of heavy goods in industrial facilities and warehouses.

4. Agriculture: In agricultural machinery, heavy-duty chains are used in equipment like combines, tractors, and balers. They handle the stresses of harvesting, plowing, and baling operations in the field.

5. Automotive Manufacturing: Heavy-duty chains are utilized in automotive assembly lines for vehicle assembly and production processes.

6. Forestry: Chainsaw machines and logging equipment rely on heavy-duty chains for felling, bucking, and skidding trees in forestry operations.

7. Marine: Heavy-duty chains are applied in marine environments for anchor lines, mooring systems, and towing operations.

8. Aerospace: Heavy-duty chains are used in aircraft for various applications, including flight control mechanisms and landing gear.

9. Energy and Power Generation: Heavy-duty chains are used in power plants for conveying coal and biomass, as well as in wind turbines for pitch and yaw control.

10. Oil and Gas: Heavy-duty chains are employed in oil rigs and drilling equipment for the extraction of petroleum and natural gas.

Overall, heavy-duty chains are essential components in industries that require reliable, robust, and high-load bearing systems. They contribute to the smooth and efficient operation of various machinery, ensuring safety and productivity in diverse industrial applications.

China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains  China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains
editor by CX 2023-07-25

China Standard High Quality Stainless Steel Short Pitch Precision Duplex Roller Chains (A series) roller chain design

Product Description

Product Description
Product Parameters

Standard GB, ISO, ANSI, DIN
Type Standard A and standard B precision roller chain, conveyor chain;
special chain with accessories, welding chain, leaf chain and sprocket
ANSI chain No. 40,50,60,80,100,120,140,160,180,200,240;
C40,C50,C60,C80,C100,C120,C140,C160;
DIN/ISO chain No. 08A,10A,12A,16A,20A,24A,28A,32A,36A,40A,48A;
C08A,C10A,C12A,C16A,C20A,C24A,C28A,C32A;
Application Food processing, pharmaceutical and chemical industries, electronics, machinery;
household appliances, automotive manufacturing, metallurgy, sewage treatment
Series A series,B series

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FAQ
      

1. Are you a manufacturer or trade Company?
We are a factory founded in 1997 with a trade team for international service.

2. What terms of payment do you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight

3. What is your lead time for your goods?
Normally 35 days after confirmed order. 30 days could be available in the low season for some items (during May to July), and 45 days during the new year and hot season ( Jan to March).

4. Samples
For customers who need sample confirmation before ordering, please bear in mind that the following policy will be adopted:
1) All samples are free of charge with a maximum value not exceeding USD 100.
2) The courier cost for the first-time sample sending will be charged by the consignee. We will send the samples with freight to be collected. So please inform your account with FedEx, UPS, DHL, or TNT so that we can proceed promptly.
3) The first-time courier cost will be totally deducted from the contract value of the trial cooperation.

Standard or Nonstandard: Nonstandard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Structure: Roller Chain
Material: Stainless Steel
Type: Short Pitch Chain
Samples:
US$ 0/Foot
1 Foot(Min.Order)

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Customization:
Available

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chain

Types of roller chains and their applications

There are many factors that can cause premature wear of the roller chain. They include friction, external shocks, and lack of lubrication or adjustment. Here are some tips to help you prevent premature chain wear. Read on to learn more about the different types of roller chains and their applications. You’ll be surprised how quickly the roller chain wears out! Below we have listed some of the most common causes of premature roller chain wear.

Double strand heavy-duty roller chain

If your application requires a heavy-duty chain, a double-strand steel roller chain is an excellent choice. Double-strand steel roller chains are manufactured to reduce stress fatigue and stretch, making them ideal for industrial and logging equipment. This type of chain is also heat-treated and shot-peened for excellent fatigue resistance and strength. Listed below are some of the advantages of double-strand heavy-duty roller chains.
When comparing single-strand and double-strand heavy-duty roller chains, double-strand steel roller chains are generally better. They have twice as many side plates and a working load close to that of a twin-strand steel roller chain. Unlike single-strand steel roller chains, double-strand roller chains are not interchangeable with standard double-sprockets. They use sprockets specially made for double chains.
Double strand chains are particularly strong, resistant to rust and corrosion, and ideal for high-stress applications. They are commonly used in conveyor systems, paper mill equipment, ditches, lifts, seed drills, and various hoisting machinery. They are also used in the wastewater and food processing industries. Chains of this type are used on conveyor lines, so they are an excellent choice for heavy machinery.

Nickel-plated chain

Nickel-plated roller chains are ideal for outdoor work, mildly corrosive environments, and applications requiring a good chain appearance. Nickel plating increases component hardness and improves wear resistance while ensuring that all surfaces are protected. The benefits of nickel-plated roller chains include increased durability, corrosion resistance, and a bright shine. Here are a few reasons to use such a chain. All chains are manufactured to the highest quality and safety standards.
Although slightly corrosive, nickel-plated roller chains are ideal for applications in high salt and high humidity environments. However, nickel plating can peel and chip, so nickel roller chains are not recommended for use in food processing or other environments exposed to corrosive substances. ANSI B29.1 standard chain can be nickel-plated and is ideal for a variety of applications including industrial garage doors and boat lifts.
CZPT USA Corp. is committed to being the premier agricultural and industrial chain supplier in the United States. By focusing on quality, they ensure their chains provide long life and unmatched wear resistance. If you’re looking for a quality plated roller chain, consider choosing a chain from a leading manufacturer. If you need the durability and strength of a nickel roller chain, choose CZPT USA Corp. We manufacture the highest quality chains in the USA.
In addition to high strength, nickel-plated roller chains are also available in elastomer profiles. These types of chains can handle 1/2 to 3/4″ loads, depending on their pitch. They are also ideal for gentle traction on sensitive surfaces. The strength of these chains depends on the type of the main link used in the chain. Nickel-plated roller chains are available in a variety of sizes and are priced to suit a variety of applications.

Stainless steel chain

Stainless steel roller chains are ideal for industrial applications in two harsh environments. They have excellent chemical and corrosion resistance, as well as high strength. Chains are available in three grades to meet various operational needs. 304SS is suitable for food contact applications, while 316SS and 606SS offer excellent corrosion resistance. 600 series stainless steel provides excellent corrosion and wears resistance with precipitation hardened components.
In food processing, stainless steel chains are often exposed to extremely high temperatures and high concentrations of acids, alkalis, and water. They are also resistant to high concentrations of acid and chlorine. And their low magnetic permeability allows them to function properly in hygienic conditions. But stainless steel roller chains also have some disadvantages. Despite their excellent corrosion resistance, these chains are not recommended for use in food processing environments.
Compared to carbon steel, stainless steel roller chains are softer and hold longer. This means it may wear out faster. Since stainless steel is not heat-treated, its surface hardness is different from carbon steel. It retains heat for longer, reducing its tensile strength and extending its lifespan. Nonetheless, stainless steel roller chains are ideal for a variety of industrial applications.
The stainless steel roller chain is made of high-quality material. For example, the Premier series stainless steel roller chains are manufactured in Japan using a special type of stainless steel shot peening process. They also feature a solid roller design that reduces side flex. The Premier range also features highly polished side panels and is available in 10′ boxes, 50′ reels, and 100′ reels. They can also be cut to length if necessary.

Accumulation conveyor

Roller chain accumulation conveyors are designed to transport loads up to 440 lbs or 200 kg. The accumulator chain is located on large idler rollers to ensure quiet operation and the minimum force required to hold the pallet. They are suitable for various applications and can be integrated into the entire processing system. These conveyor belts have T-slots on three sides of the profile frame for connecting brackets and sensors.
Sensors installed in the accumulation area detect objects on the conveyor line and send signals to the motors that power the accumulation area. The motor can be external or built into the drum itself. Other types of sensors use light, such as photosensors. Photoelectric sensors detect objects by emitting and receiving specific wavelengths of light. This option is cost-effective because the sensor rollers are located slightly above the surface of the conveyor line.
Roller chain accumulation conveyors can be constructed of steel or plastic rollers. It can be equipped with staggered or coaxial rollers. Safety cover prevents accidental insertion of fingers into the chain, improving operator safety. The safety cover is compatible with the chain type and required bend radius. These caps are made of plastic clips that fit permanently on the inner links of the chain. They do not interfere with conveyed goods or workpiece carriers.
There are two basic types of accumulation conveyors: free flow and accumulation. Free-flowing chains allow conveyed objects to slide directly onto the chain while stacking chains allow goods to slide under the chain. Accumulation chains are commonly used in the food and packaging industries and have rollers that support conveyed objects. The free-flowing conveyor system eliminates the risk of damaging objects, as the rollers in the accumulation conveyor are in direct contact with the bottom of the cargo.
chain

Custom attachment

Standard accessories for roller chains are available in a variety of styles. Typically, they can be assembled on pin or roller links. When referring to connecting chains, it is important to know how to refer to pitch and center-to-center spacing. The pitch of the roller chain should include inner and outer roller links and must alternate every three pitches. Additionally, you can order custom accessories for pin or roller linkages. Below are some examples of custom accessories for roller chains.
Stainless steel roller chains are one of the most well-known chains for this application. It has a stainless steel 304 finish to create curved and straight lugs. For even more flexibility, you can also request custom accessories such as chain plate holes and pins. For added safety, various accessories can be attached to the single-pitch roller chain. It can also be made with multiple pins or curved lugs.
HKK Chains is stocked with much stainless steel and carbon steel standard connecting chains. Most of the time, they can assemble a custom accessory chain in no time. For example, a single-pitch chain with two connecting holes is called a wide profile. Additionally, chains can be manufactured in a variety of materials, including carbon steel, stainless steel, Lambda, plastic, and Ultra WP. In addition, a wide range of unique accessories is available for special industries.

China Standard High Quality Stainless Steel Short Pitch Precision Duplex Roller Chains (A series)   roller chain designChina Standard High Quality Stainless Steel Short Pitch Precision Duplex Roller Chains (A series)   roller chain design
editor by CX 2023-05-29

China Good quality Chains Supplier Customized Stainless Steel Short Pitch Precision (A series) Single Roller Chain roller chain breaker tool

Product Description

Product Description

Product Parameters

Standard GB, ISO, ANSI, DIN
Type Standard A and standard B precision roller chain, conveyor chain;
special chain with accessories, welding chain, leaf chain and sprocket
ANSI chain No. 40,50,60,80,100,120,140,160,180,200,240;
C40,C50,C60,C80,C100,C120,C140,C160;
DIN/ISO chain No. 08A,10A,12A,16A,20A,24A,28A,32A,36A,40A,48A;
C08A,C10A,C12A,C16A,C20A,C24A,C28A,C32A;
Application Food processing, pharmaceutical and chemical industries, electronics, machinery;
household appliances, automotive manufacturing, metallurgy, sewage treatment
Series A series, B series

More Products

Advantage

Certifications

DETAILS ABOUT CZPT CHAIN 

Exhibition

Workshop
Application

Packaging Details

Shipping

FAQ
      

1. Are you a manufacturer or trade Company?
We are a factory founded in 1997 with a trade team for international service.

2. What terms of payment do you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight

3. What is your lead time for your goods?
Normally 35 days after confirmed order. 30 days could be available in the low season for some items (during May to July), and 45 days during the new year and hot season ( Jan to March).

4. Samples
For customers who need sample confirmation before ordering, please bear in mind that the following policy will be adopted:
1) All samples are free of charge with a maximum value not exceeding USD 100.
2) The courier cost for the first-time sample sending will be charged by the consignee. We will send the samples with freight to be collected. So please inform your account with FedEx, UPS, DHL, or TNT so that we can proceed promptly.
3) The first-time courier cost will be totally deducted from the contract value of the trial cooperation.
4) OEM/ODM are both available.

Usage: Transmission Chain, Conveyor Chain, Dedicated Special Chain
Material: Stainless steel
Surface Treatment: Polishing
Feature: Heat Resistant
Chain Size: 1/2"*3/32"
Structure: Roller Chain
Samples:
US$ 0/Foot
1 Foot(Min.Order)

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Request Sample

Customization:
Available

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chain

Roller Chain Basics

Before choosing the right roller chain for your machine, it is necessary to learn some basics. Learn about sprockets, tensile strength, pitch, and width. Read this article to learn more. It will help you make an informed decision. Getting the right product is critical, but it’s not always as simple as choosing a brand name. You need to choose a company that supports its products and provides good service.

Roller sprocket

If you are planning to purchase roller sprockets for your application, you should first look at the various types available. Sprockets available for single-strand roller chains are manufactured by Boston Steel – Type B sprockets are drilled to size. They are available in 1/4, 3/8, 1/2, 5/8, 3/4 and 1″ pitch sizes.
The diameter of the sprocket is important when choosing the right sprocket for your application. Using a caliper to measure the diameter of a toothless plate is a good way to determine the exact size of the sprocket. A caliper is the diameter of a plate without teeth. On Type B and C sprockets, the hub diameter measures the thickness of the hub.
Another type of sprocket is the steel split sprocket, which is split in diameter. This type is easy to install and remove, and is held together by bolts in the hub. Typically, split sprockets have chain pitches ranging from 40 to 240 and bores ranging from 3/4″ to 6″. The split sprockets are designed with one pointing towards the ceiling and the other two parallel to the floor.
When shopping for sprockets, it is important to remember that they are designed specifically for a specific chain. All chains are manufactured to specific standards. In the United States, the most common standard is ANSI. The chain pitch is the distance between the center of each pin and the center of the next pin. In the US, the standard is always measured in eight-inch intervals.
In addition to sprocket size, sprocket pitch and the surface area also affect chain life. Unlike belt sprockets, which are made of forged steel, the teeth on roller sprockets are stamped from steel sheet or pressed from powdered metal. The harder the teeth, the longer the chain will last.

Roller chain pitch

The pitch of a roller chain is the distance between the sprocket and the pin. The smaller the thread pitch, the smaller the bushing wear. Generally speaking, the smaller the pitch, the longer the life of the chain. For best performance and longest life, manufacturers recommend a minimum chain pitch of 2% to 3%. Chain pitch is important to ensure proper performance, and the manufacturer recommends that you replace the chain when it reaches 2% to 3% of normal.
To determine the correct chain pitch for a particular chain, first determine the sprocket size and pitch. Pitch is the distance between pin centers, measured in 1/8 inch increments. The pin diameter of the chain is also important. If you’re not sure about the pin diameter of your chain, measure a few links to get a good average reading. Alternatively, use a caliper to measure the inside diameter of the sprocket and count the number of teeth.
When sizing a sprocket, measure the chain between the gears with a caliper and compare it to the measurements on the chain size chart. Make sure you have checked all the specs and checked the correct chain pitch. Then, choose the correct chain pitch for your needs. This is a critical step in choosing the right chain. So get the correct pitch for your roller chain. Correct pitch helps ensure maximum performance and safety.
To identify a specific type of roller chain, measure its tensile strength. This represents the amount of load the chain can withstand before breaking. Another key parameter to consider is fatigue strength. Chains with high fatigue strength are more resistant to rust and wear than chains with low fatigue strength. The numbers on the right in the standard numbering represent normal or light duty chains, while the numbers on the left represent the pitch of heavy-duty chains.
Double pitch roller chains are a variant of single pitch chains. They are manufactured according to ISO 606 and meet the same standards as single pitch chains. They are mainly used in applications with lower requirements for speed and power transmission. The plates of double pitch roller chains are also longer than single pitch chains. The double pitch drive series is also used for elevator and long conveyor drives. There are three main types of roller chains: single-pitch chains, double-pitch carriers, and oversized rollers.

Roller chain width

When buying a roller chain, one of the first decisions you must make is its width. To make this determination, you need to measure the overall width of the chain, the diameter, and the width of each roller. You must also know the height and thickness of the board. After taking these measurements, you can start shopping for the perfect roller chain. But before you buy a new chain, it’s important to know what to expect from the chain itself.
There are many different types of roller chains. These chains are available for ANSI and metric measurements. They come in single-stranded and double-stranded variants. They are usually used for power transmission. Other types include agricultural, automotive, conveyor, multi-strand, and four-strand chains. These charts also include a chart so you can easily see the exact size you need. Listed below are some of the benefits of buying a roller chain.
Roller diameter and pin diameter are important factors in choosing the correct chain width. The width of the chain is the nearest binary fraction of 5/8 of an inch. It should be at least half the thickness of the sprocket, and the plate thickness is one-eighth the width of the chain. Overweight chains are indicated with the suffix H. The pitch and width of the chain are determined by the working load and machine speed.
The outer links of the roller chain are called pin links. These pins are inserted into the bushings of the adjacent roller links. They are held in place by cotter pins. Pin links are usually pressed into the pins of heavy-duty chains. These pins are used to hold the rollers in place. However, these pin chains can reduce the power rating of roller chains by up to 20%.
The ANSI 29.1 Steel Chain Specification specifies a minimum pitch in inches and ultimate strength of 12,500 x pitch in inches. At the same time, the O-ring chain greatly reduces wear due to its lubricating effect. O-ring and X-ring chains contain a lubricant injected by vacuum when riveting the chain together. Transmission chains are tested and governed by standards bodies such as ANSI. In 2011, the American Society of Mechanical Engineers developed a standard for precision power transmission chains.
chain

Roller chain tensile strength

One of the most important indicators of roller chain strength is tensile strength. This measurement refers to the amount of load the chain can withstand before breaking. Another measure, called fatigue strength, refers to the maximum load a chain can withstand before it breaks. The strength of a roller chain depends on its size, the quality of the steel used in its construction, and the heat treatment. There are also differences in the types of shot peening used to treat steel, pitch holes, and link plates.
When choosing a roller chain, the workload is critical. This is the maximum load the chain can withstand before fatigue failure occurs. This measurement is critical because it helps determine the type of load applied to the chain. When deciding which roller chain to buy, be sure to consider the mechanical type and desired strength. Then, make sure it meets strength and load-carrying capacity requirements.
The ultimate tensile strength of a roller chain is based on the manufacturer’s recommended maximum tensile strength. However, the actual tensile strength may be higher or lower than this value. The working load limit of a roller chain can also be calculated by multiplying the chain diameter by the grade. The working load limit of a chain is the highest tension it can withstand before breaking. This value is usually expressed in points.
The maximum tensile strength of roller chains varies by chain type. The single-strand heavy chain has thick side plates for higher shock loads. Single strand heavy-duty roller chains, also known as “bushing” roller chains, are also available. Double-stranded heavy chains are structurally similar, but they have two layers of steel connected by pins that are nearly twice as strong as standard roller chains.
The tensile strength of a single-strand roller chain is approximately 500 tons. In comparison, a single-chain blockchain has a tensile strength of 900. The tensile strength of the two is similar, and it is not recommended to choose one or the other. Although steel and titanium chains are considered the strongest materials for roller chains, these materials are not magnetic.

China Good quality Chains Supplier Customized Stainless Steel Short Pitch Precision (A series) Single Roller Chain   roller chain breaker toolChina Good quality Chains Supplier Customized Stainless Steel Short Pitch Precision (A series) Single Roller Chain   roller chain breaker tool
editor by CX 2023-04-25

China wholesaler 10bss-2 Duplex Stainless Steel Gearbox Belt Transmission Parts Engineering and Construction Machinery Short Pitch Roller Chains and Bush Chain near me factory

ProductDescription

Chain No.

Pitch

P
mm

Rollerdiameter

d1max
mm

Widthbetweeninner plates
b1min
mm

Pindiameter

d2max
mm

Pinlength

Innerplatedepth
h2max
mm

Platethickness

t/Tmax
mm

Transversepitch

Pt
mm

Breakingload

Q
kN/lbf

Weightpermeter
qkg/m

Lmax
mm
Lcmax
mm
10BSS-2 15.875 10.sixteen nine.sixty five five.08 36.ten 37.fifty fourteen.70 one.70 sixteen.fifty nine 29.1/6542 1.ninety six

*Bushchain:d1inthetableindicatestheexternaldiameterofthebush
*Straightsideplates
Stainless steel chains are suitable for corrosive conditions involving food,chemicalspharmaceuticals,and so on.and also suitable for high and low temperature conditions.

Rollerchain
Rollerchainorbushrollerchainisthetypeofchaindrivemostcommonlyusedfortransmissionofmechanicalpoweronmanykindsofdomestic,industrialandagriculturalmachinery,includingconveyors,wire-andtube-drawingmachines,printingpresses,vehicles,bikes,andbicycles.Itconsistsofa seriesofshortcylindricalrollersheldtogetherbysidelinks.Itisdrivenbya toothedwheelcalleda sprocket.Itisa simple,trustworthy,andefficient[1] meansofpowertransmission.

ThoughHansRenoldiscreditedwithinventingtherollerchainin1880,sketchesbyLeonardodaVinciinthe16thcenturyshowa chainwitha rollerbearing.

Constructionofthechain
Twodifferentsizesofrollerchain,showingconstruction.
Therearetwotypesoflinksalternatinginthebushrollerchain.Thefirsttypeisinnerlinks,havingtwoinnerplatesheldtogetherbytwosleevesorbushingsuponwhichrotatetworollers.Innerlinksalternatewiththesecondtype,theouterlinks,consistingoftwoouterplatesheldtogetherbypinspassingthroughthebushingsoftheinnerlinks.The”bushingless”rollerchainissimilarinoperationthoughnotinconstructioninsteadofseparatebushingsorsleevesholdingtheinnerplatestogether,theplatehasa tubestampedintoitprotrudingfromtheholewhichservesthesamepurpose.Thishastheadvantageofremovingonestepinassemblyofthechain.

Therollerchaindesignreducesfrictioncomparedtosimplerdesigns,resultinginhigherefficiencyandlesswear.Theoriginalpowertransmissionchainvarietieslackedrollersandbushings,withboththeinnerandouterplatesheldbypinswhichdirectlycontactedthesprocketteethhoweverthisconfigurationexhibitedextremelyrapidwearofboththesprocketteeth,andtheplateswheretheypivotedonthepins.Thisproblemwaspartiallysolvedbythedevelopmentofbushedchains,withthepinsholdingtheouterplatespassingthroughbushingsorsleevesconnectingtheinnerplates.Thisdistributedthewearovera greaterareahowevertheteethofthesprocketsstillworemorerapidlythanisdesirable,fromtheslidingfrictionagainstthebushings.TheadditionofrollerssurroundingthebushingsleevesofthecZheJiang dprovidedrollingcontactwiththeteethofthesprocketsresultinginexcellentresistancetowearofbothsprocketsandchainaswell.Thereisevenverylowfriction,aslongasthechainissufficientlylubricated.Continuous,clear,lubricationofrollerchainsisofprimaryimportanceforefficientoperationaswellascorrecttensioning.

Lubrication
Manydrivingchains(forexample,infactoryequipment,ordrivinga camshaftinsideaninternalcombustionengine)operateincleanenvironments,andthusthewearingsurfaces(thatis,thepinsandbushings)aresafefromprecipitationandairbornegrit,manyevenina sealedenvironmentsuchasanoilbath.Somerollerchainsaredesignedtohaveo-ringsbuiltintothespacebetweentheoutsidelinkplateandtheinsiderollerlinkplates.Chainmanufacturersbegantoincludethisfeaturein1971aftertheapplicationwasinventedbyJosephMontanowhileworkingforWhitneyChainofHartford,Connecticut.O-ringswereincludedasa waytoimprovelubricationtothelinksofpowertransmissionchains,a servicethatisvitallyimportanttoextendingtheirworkinglife.Theserubberfixturesforma barrierthatholdsfactoryappliedlubricatinggreaseinsidethepinandbushingwearareas.Additional,therubbero-ringspreventdirtandothercontaminantsfromenteringinsidethechainlinkages,wheresuchparticleswouldotherwisecausesignificantwear.[citationneeded]

Therearealsomanychainsthathavetooperateindirtyconditions,andforsizeoroperationalreasonscannotbesealed.Examplesincludechainsonfarmequipment,bicycles,andchainsaws.Thesechainswillnecessarilyhaverelativelyhighratesofwear,particularlywhentheoperatorsarepreparedtoacceptmorefriction,lessefficiency,morenoiseandmorefrequentreplacementastheyneglectlubricationandadjustment.

Manyoil-basedlubricantsattractdirtandotherparticles,eventuallyforminganabrasivepastethatwillcompoundwearonchains.Thisproblemcanbecircumventedbyuseofa “dry”PTFEspray,whichformsa solidfilmafterapplicationandrepelsbothparticlesandmoisture.

Motorcyclechainlubrication
Chainsoperatingathighspeedscomparabletothoseonmotorcyclesshouldbeusedinconjunctionwithanoilbath.Formodernmotorcyclesthisisnotpossible,andmostmotorcyclechainsrununprotected.Thus,motorcyclechainstendtowearveryquicklyrelativetootherapplications.Theyaresubjecttoextremeforcesandareexposedtorain,grime,sandandroadsalt.

Motorcyclechainsarepartofthedrivetraintotransmitthemotorpowertothebackwheel.Properlylubricatedchainscanreachanefficiencyof98%orgreaterinthetransmission.UnlubricatedchainswillsignificantlydecreaseperformanceandincreasecZheJiang dsprocketwear.

Twotypesofaftermarketlubricantsareavailableformotorcyclechains:sprayonlubricantsandoildripfeedsystems.

SpraylubricantsmaycontainwaxorPTFE.Whiletheselubricantsusetackadditivestostayonthechaintheycanalsoattractdirtandsandfromtheroadandovertimeproducea grindingpastethatacceleratescomponentwear.
OildripfeedsystemscontinuouslylubricatethecZheJiang duselightoilthatdoesnotsticktothechain.Researchhasshownthatoildripfeedsystemsprovidethegreatestwearprotectionandgreatestpowersaving.

Variantsindesign

Layoutofa rollerchain:1.Outerplate,2.Innerplate,3.Pin,4.Bushing,5.Roller
Ifthechainisnotbeingusedfora highwearapplication(forinstanceifitisjusttransmittingmotionfroma hand-operatedlevertoa controlshaftona machine,ora slidingdooronanoven),thenoneofthesimplertypesofchainmaystillbeused.Conversely,whereextrastrengthbutthesmoothdriveofa smallerpitchisrequired,thechainmaybe”siamesed”insteadofjusttworowsofplatesontheoutersidesofthechain,theremaybethree(“duplex”),four(“triplex”),ormorerowsofplatesrunningparallel,withbushingsandrollersbetweeneachadjacentpair,andthesamenumberofrowsofteethrunninginparallelonthesprocketstomatch.Timingchainsonautomotiveengines,forexample,typicallyhavemultiplerowsofplatescalledstrands.

Rollerchainismadeinseveralsizes,themostcommonAmericanNationalStandardsInstitute(ANSI)standardsbeing40,fifty,sixty,and80.Thefirstdigit(s)indicatethepitchofthechainineighthsofaninch,withthelastdigitbeing0 forstandardchain,1 forlightweightchain,and5 forbushedchainwithnorollers.Therefore,a chainwithhalf-inchpitchwouldbea #40whilea #160sprocketwouldhaveteethspaced2 inchesapart,and so on.Metricpitchesareexpressedinsixteenthsofaninchthusa metric#8chain(08B-1)wouldbeequivalenttoanANSI#forty.Mostrollerchainismadefromplaincarbonoralloysteel,butstainlesssteelisusedinfoodprocessingmachineryorotherplaceswherelubricationisa problem,andnylonorbrassareoccasionallyseenforthesamereason.

Rollerchainisordinarilyhookedupusinga masterlink(alsoknownasa connectinglink),whichtypicallyhasonepinheldbya horseshoeclipratherthanfrictionfit,allowingittobeinsertedorremovedwithsimpletools.Chainwitha removablelinkorpinisalsoknownascotteredchain,whichallowsthelengthofthechaintobeadjusted.Halflinks(alsoknownasoffsets)areavailableandareusedtoincreasethelengthofthechainbya singleroller.Rivetedrollerchainhasthemasterlink(alsoknownasa connectinglink)”riveted”ormashedontheends.Thesepinsaremadetobedurableandarenotremovable.

Use

Anexampleoftwo’ghost’sprocketstensioninga triplexrollerchainsystem
Rollerchainsareusedinlow-tomid-speeddrivesataround600to800feetperminutehowever,athigherspeeds,around2,000to3,000feetperminute,V-beltsarenormallyusedduetowearandnoiseissues.
Abicyclechainisa formofrollerchain.Bicyclechainsmayhavea masterlink,ormayrequirea chaintoolforremovalandinstallation.A similarbutlargerandthusstrongerchainisusedonmostmotorcyclesalthoughitissometimesreplacedbyeithera toothedbeltora shaftdrive,whichofferlowernoiselevelandfewermaintenancerequirements.
Thegreatmajorityofautomobileenginesuserollerchainstodrivethecamshaft(s).Veryhighperformanceenginesoftenusegeardrive,andstartingintheearly1960stoothedbeltswereusedbysomemanufacturers.
Chainsarealsousedinforkliftsusinghydraulicramsasa pulleytoraiseandlowerthecarriagehowever,thesechainsarenotconsideredrollerchains,butareclassifiedasliftorleafchains.
Chainsawcuttingchainssuperficiallyresemblerollerchainsbutaremorecloselyrelatedtoleafchains.Theyaredrivenbyprojectingdrivelinkswhichalsoservetolocatethechainontothebar.

SeaHarrierFA.2ZA195front(cold)vectorthrustnozzle- thenozzleisrotatedbya chaindrivefromanairmotor
Aperhapsunusualuseofa pairofmotorcyclechainsisintheHarrierJumpJet,wherea chaindrivefromanairmotorisusedtorotatethemovableenginenozzles,allowingthemtobepointeddownwardsforhoveringflight,ortotherearfornormalforwardflight,a systemknownasThrustvectoring.
 

Put on

Theeffectofwearona rollerchainistoincreasethepitch(spacingofthelinks),causingthechaintogrowlonger.Notethatthisisduetowearatthepivotingpinsandbushes,notfromactualstretchingofthemetal(asdoeshappentosomeflexiblesteelcomponentssuchasthehand-brakecableofa motorvehicle).

Withmodernchainsitisunusualfora chain(otherthanthatofa bicycle)towearuntilitbreaks,sincea wornchainleadstotherapidonsetofwearontheteethofthesprockets,withultimatefailurebeingthelossofalltheteethonthesprocket.Thesprockets(inparticularthesmallerofthetwo)suffera grindingmotionthatputsa characteristichookshapeintothedrivenfaceoftheteeth.(Thiseffectismadeworsebya chainimproperlytensioned,butisunavoidablenomatterwhatcareistaken).Thewornteeth(andchain)nolongerprovidessmoothtransmissionofpowerandthismaybecomeevidentfromthenoise,thevibrationor(incarenginesusinga timingchain)thevariationinignitiontimingseenwitha timinglight.Bothsprocketsandchainshouldbereplacedinthesecases,sincea newchainonwornsprocketswillnotlastlong.However,inlessseverecasesitmaybepossibletosavethelargerofthetwosprockets,sinceitisalwaysthesmalleronethatsuffersthemostwear.Onlyinverylight-weightapplicationssuchasa bicycle,orinextremecasesofimpropertension,willthechainnormallyjumpoffthesprockets.

Thelengtheningduetowearofa chainiscalculatedbythe

M= thelengthofa numberoflinksmeasured

S= thenumberoflinksmeasured

P= Pitch

Inindustry,itisusualtomonitorthemovementofthechaintensioner(whethermanualorautomatic)ortheexactlengthofa drivechain(oneruleofthumbistoreplacea rollerchainwhichhaselongated3%onanadjustabledriveor1.5%ona fixed-centerdrive).A simplermethod,particularlysuitableforthecycleormotorcycleuser,istoattempttopullthechainawayfromthelargerofthetwosprockets,whilstensuringthechainistaut.Anysignificantmovement(e.g.makingitpossibletoseethrougha gap)probablyindicatesa chainwornuptoandbeyondthelimit.Sprocketdamagewillresultiftheproblemisignored.Sprocketwearcancelsthiseffect,andmaymaskchainwear.

Bicyclechainwear

Thelightweightchainofa bicyclewithderailleurgearscansnap(orrather,comeapartattheside-plates,sinceitisnormalforthe”riveting”tofailfirst)becausethepinsinsidearenotcylindrical,theyarebarrel-shaped.Contactbetweenthepinandthebushingisnottheregularline,buta pointwhichallowsthechain’spinstoworkitswaythroughthebushing,andfinallytheroller,ultimatelycausingthechaintosnap.Thisformofconstructionisnecessarybecausethegear-changingactionofthisformoftransmissionrequiresthechaintobothbendsidewaysandtotwist,butthiscanoccurwiththeflexibilityofsucha narrowcZheJiang drelativelylargefreelengthsona bicycle.

Chainfailureismuchlessofa problemonhub-gearedsystems(e.g.Bendix2-velocity,Sturmey-ArcherAW)sincetheparallelpinshavea muchbiggerwearingsurfaceincontactwiththebush.Thehub-gearsystemalsoallowscompleteenclosure,a greataidtolubricationandprotectionfromgrit.

Chainstrength

Themostcommonmeasureofrollerchain’sstrengthistensilestrength.Tensilestrengthrepresentshowmuchloada chaincanwithstandundera one-timeloadbeforebreaking.Justasimportantastensilestrengthisa chain’sfatiguestrength.Thecriticalfactorsina chain’sfatiguestrengthisthequalityofsteelusedtomanufacturethechain,theheattreatmentofthechaincomponents,thequalityofthepitchholefabricationofthelinkplates,andthetypeofshotplustheintensityofshotpeencoverageonthelinkplates.Otherfactorscanincludethethicknessofthelinkplatesandthedesign(contour)ofthelinkplates.Theruleofthumbforrollerchainoperatingona continuousdriveisforthechainloadtonotexceeda mere1/6or1/9ofthechain’stensilestrength,dependingonthetypeofmasterlinksused(press-fitvs.slip-match)[citationneeded].Rollerchainsoperatingona continuousdrivebeyondthesethresholdscanandtypicallydofailprematurelyvialinkplatefatiguefailure.

ThestandardminimumultimatestrengthoftheANSI29.1steelchainis12,500x (pitch,ininches)two.X-ringandO-Ringchainsgreatlydecreasewearbymeansofinternallubricants,increasingchainlife.Theinternallubricationisinsertedbymeansofa vacuumwhenrivetingthechaintogether.

Chainstandards

Standardsorganizations(suchasANSIandISO)maintainstandardsfordesign,dimensions,andinterchangeabilityoftransmissionchains.Forexample,thefollowingTableshowsdatafromANSIstandardB29.1-2011(PrecisionPowerTransmissionRollerChains,Attachments,andSprockets)developedbytheAmericanSocietyofMechanicalEngineers(ASME).Seethereferences[8][9][10] foradditionalinformation.

ASME/ANSIB29.1-2011RollerChainStandardSizesSizePitchMaximumRollerDiameterMinimumUltimateTensileStrengthMeasuringLoad25.

Formnemonicpurposes,belowisanotherpresentationofkeydimensionsfromthesamestandard,expressedinfractionsofaninch(whichwaspartofthethinkingbehindthechoiceofpreferrednumbersintheANSIstandard):

Notes:
one.Thepitchisthedistancebetweenrollercenters.Thewidthisthedistancebetweenthelinkplates(i.e.slightlymorethantherollerwidthtoallowforclearance).
two.Theright-handdigitofthestandarddenotes0 =normalchain,1 =lightweightchain,5 =rollerlessbushingchain.
three.Theleft-handdigitdenotesthenumberofeighthsofaninchthatmakeupthepitch.
4.An”H”followingthestandardnumberdenotesheavyweightchain.A hyphenatednumberfollowingthestandardnumberdenotesdouble-strand(2),triple-strand(3),andsoon.Thus60H-3denotesnumber60heavyweighttriple-strandchain.
 Atypicalbicyclechain(forderailleurgears)usesnarrow1⁄2-inch-pitchchain.Thewidthofthechainisvariable,anddoesnotaffecttheloadcapacity.Themoresprocketsattherearwheel(historically3-6,nowadays7-12sprockets),thenarrowerthechain.Chainsaresoldaccordingtothenumberofspeedstheyaredesignedtoworkwith,forexample,”10speedchain”.Hubgearorsinglespeedbicyclesuse1/2″x 1/8″chains,where1/8″referstothemaximumthicknessofa sprocketthatcanbeusedwiththechain.

Typicallychainswithparallelshapedlinkshaveanevennumberoflinks,witheachnarrowlinkfollowedbya broadone.Chainsbuiltupwitha uniformtypeoflink,narrowatoneandbroadattheotherend,canbemadewithanoddnumberoflinks,whichcanbeanadvantagetoadapttoa specialchainwheel-distanceontheothersidesucha chaintendstobenotsostrong.

RollerchainsmadeusingISOstandardaresometimescalledasisochains.

Seealso
Self-lubricatingchain
References
 Asmuchas98%efficientunderidealconditions,accordingtoKidd,MattD.N.E.LochR.L.Reuben(1998).”BicycleChainEfficiency”.TheEngineeringofSportconference.Heriot-WattUniversity.Archivedfromtheoriginalon6 February2006.Retrieved16May2006.
 Inthe16thcentury,LeonardodaVincimadesketchesofwhatappearstobethefirststeelchain.Thesechainswereprobablydesignedtotransmitpulling,notwrapping,powerbecausetheyconsistonlyofplatesandpinsandhavemetalfittings.Even so,daVinci’ssketchdoesshowa rollerbearing.TsubakimotoChainCo.,ed.(1997).TheCompleteXihu (West Lake) Dis.toChain.KogyoChosakiPublishingCo.,Ltd.p.240.ISBN0-9658932–.p.211.Retrieved17May2006.
 “WhatisMicPol?”.Lubrication.Retrieved3 October2018.
 Chainsoperatingathighspeedscomparabletothoseonmotorcyclesshouldbeusedinconjunctionwithanoilbath,accordingto:Lubrecht,A.andDalmaz,G.,(eds.)TransientsProcessesinTribology,Proc30thLeeds-LyonSymposiumonTribology.30thLeeds-LyonSymposiumonTribology,2-5September2003,Lyon.TribologyandInterfaceEngineeringSeries(43).Elsevier,Amsterdam,pp.291-298.
 Oildripfeedprovidedthegreatestwearprotectionbetweenchainrollerandpin,Oildripfeedprovidedthegreatestpowersavingoverunlubricatedchainsandsprockets,accordingtoLee,P.M.andPriest,M.(2004)Aninnovationintegratedapproachtotestingmotorcycledrivechainlubricants.In:Lubrecht,A.andDalmaz,G.,(eds.)TransientsProcessesinTribology,Proc30thLeeds-LyonSymposiumonTribology.30thLeeds-LyonSymposiumonTribology,2-5September2003,Lyon.TribologyandInterfaceEngineeringSeries(forty three).Elsevier,Amsterdam,pp.291-298.
 
 ASMEB29.1-2011- PrecisionPowerTransmissionRollerChains,Attachments,andSprockets.
 TsubakimotoChainCo.,ed.(1997).”TransmissionChains”.TheCompleteXihu (West Lake) Dis.toChain.KogyoChosakiPublishingCo.,Ltd.p.240.ISBN0-9658932–.p.86.Retrieved30January2015.
 Green1996,pp.2337-2361
 “ANSIG7StandardRollerChain- TsubakiEurope”.TsubakiEurope.TsubakimotoEuropeB.V.Retrieved18June2009.
Bibliography
Oberg,ErikJones,FranklinD.Horton,HolbrookL.Ryffel,HenryH.(1996),Inexperienced,RobertE.McCauley,ChristopherJ.(eds.),Machinery’sHandbook(25thed.),NewYork:IndustrialPress,ISBN978–8311-2575-2,OCLC473691581.
Externallinks
    WikimediaCommonshasmediarelatedtoRollerchains.
TheCompleteXihu (West Lake) Dis.toChain
Groups:ChaindrivesMechanicalpowertransmissionMechanicalpowercontrol

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Diverse types of drive chains

There are a lot of different varieties of generate chains. You need to be ready to differentiate among roller chains, solid rivetless chains, double chains, flat-prime chains, and helical chains by the phrases employed. This write-up will provide details on the different varieties of chains. Then, you can pick the appropriate 1 according to your wants. If you haven’t bought a chain nevertheless, go through this write-up to get commenced. It will also supply information on the professionals and disadvantages of each kind.
chain

roller chain

There are a number of variances between push chains and roller chains, but in essence, the two are functionally equivalent. The selection of which type to use is dependent mostly on the variety of atmosphere it will be uncovered to. Whilst roller chains are ideal for cleanse indoor environments, they are not extremely forgiving when it comes to rubbing in opposition to the rails. Following are the main differences among a push chain and a roller chain. Using the appropriate push chain is essential for a sleek and efficient running machine.
Roller chain travel chains arrive in many different weights and tensile strengths. For light-weight-responsibility programs, use a more compact pitch chain. For large-duty apps, use larger pitch chains. The design simplicity of these chains helps make them excellent for a assortment of applications. Whilst they are fantastic for a selection of programs, the durability of these chains makes them excellent for a assortment of programs. Some of the primary makes use of of roller chain travel chains are listed underneath.
When changing the generate chain, be confident to follow the protection recommendations. The most critical thing to bear in mind is not to location the chain on a filthy ground as it might lead to extend or hurt. Soon after getting rid of the chain from the sprocket, apply the measured load specified by ANSI to it. If the load exceeds this benefit, the chain may bend. A appropriate load for measuring a generate chain must be at minimum six backlinks.
Whilst roller chains are typically created of carbon metal, some are manufactured of stainless metal and are utilized in foods processing equipment. In these environments, the chain might be created of stainless steel for lubrication. Brass and nylon are also at times utilised to meet up with these requirements. Regardless of the application, nevertheless, deciding on the proper push chain is critical to the success of a roller chain equipment. It is critical to sustain the appropriate equilibrium in between the roller chain and the machine.
To properly use a roller chain, 1st determine the size of the sprocket utilised for the push. The measurement of the chain need to be smaller than the smallest sprocket to stop tooth interference and provide adequate winding on the smaller sprocket. A great practice is to decide on a travel chain with a centre distance of thirty to fifty occasions the chain pitch. The longest attainable center-to-centre length is about 80 moments the chain pitch but is not advised for higher-pace programs.

Fall cast rivetless chain

Fall-forged rivetless travel chains are made of fall-forged steel components. Their proportions are suited for toughness and lightweight. Solid rivetless chains are generally divided into a few varieties. Each and every of these sorts has its possess set of important technical specs. Key subjects consist of minimum supreme tensile toughness, chain duration tolerances, and website link proportions. Read on to understand more about each and every kind and its employs.
One of the principal functions of forged rivetless chains is that, even with their fairly low value, they are designed to be quite sturdy. The quality of a solid chain relies upon on the construction and design of the chain. The manufacturer of this kind of push chain is CZPT, which has a big inventory of these chains. The chain is evidence tested following assembly and comes with a two-year components alternative warranty.
Cast rivetless chains are available in a range of pitch dimensions and toughness grades. They are produced of forged manganese or alloy metal and have an average toughness of 24,000 to 300,000 lbs .. These chains are appropriate for automotive, conveyor, and material handling as nicely as meat packaging, sugar processing, and metal mill programs. They are also commonly used in conveying systems. To make sure high quality and efficiency, makers supply a selection of solid chains.
CZPT delivers forged CZPT travel chains for tiredness-cost-free operation. The chain consists of a solid one particular-piece solid generate pawl for the best possible sturdiness. Chains are available in Determine 8 and in D-form designs. For far more data, make sure you speak to CZPT straight. Personalized Drop-Cast rivetless travel chains can be ordered. Producers also supply customized chains for distinct software needs.

double chain

Duplex drive chains have two sets of rollers rather of 1, making 2 times the energy. Double chain roller chains have pins and roller bearings, although triple chain chains have an additional row of plates to accommodate the a few sprockets. They are typically interchangeable with each other. They are available for US, United kingdom, and ISO standards. They are produced of carbon steel, stainless steel, and nickel or nickel-plated.
chain

flat top chain

Flat-top generate chains are perfect for curved or straight tracks and come in a lot of distinct sorts and thicknesses. These chains are hugely resistant to wear and are generally manufactured of steel, stainless metal, or plastic. CZPT manufactures particular brands of flat-best chains with high dress in resistance and excellent sounds reduction. In addition to currently being versatile, flat-best chains can be used in a variety of industrial purposes.
There are two major kinds of CZPT chains: solid top or raised rib. One particular piece is shaped from a single unit hyperlink and the other has roller foundation links for included strength. The two-piece chain brings together flat tabletop links and a roller base chain for additional energy. These chains are accessible in widths up to 20 feet and are available in a selection of widths. These chains are obtainable in stainless steel, solid iron, or plastic.
The hinge pin is an additional important element of the flat prime chain technique. Assistance chain plate to make sure sleek conveying. The hinges are obtainable in single hinge pin and double hinge pin variations. Standard hinge pins are designed for straight, slender-width chainplates double hinge pins are created for for a longer time, heavier goods. The hinge pins also appear in many diverse resources, which includes aluminum and galvanized metal. This allows for customization primarily based on device style, operating situations, and push method.
No matter whether your flat-top chain conveyor system is huge or modest, a large-quality flat-top chain will get the work completed. With their low maintenance and low upkeep layout, these chains are easy to clean and maintain. They can accommodate workpiece pallets of a variety of sizes, and their flexibility tends to make them ideal for a lot of various programs. They can also be extremely customized for various industries. So if you need to have an sector-particular conveyor, then a flat-leading push chain is the way to go.

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