Product Info Small size conveyor chain
Small size conveyor chain are chains for small transport applications that incorporate attachments into Drive chain or double pitch chain.
There is a wide variety of attachments available, and by adding slats, bars, special jigs, etc., it is possible to transport items of any shape.
The intermeshing drive eliminates slippage and allows for a wide range of operation depending on the conveyor length, transport direction, and operating environment.
table of contents
Small size conveyor chain related information
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Selection
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Materials
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Operation
Chain conveyor features and precautions
- -Can transport items of almost any shape.
- - Can be adapted to a wide range of conveyor lengths, transport directions, and operating environments.
- - There is no slippage, allowing for precise driving.
- - It has the advantages of being highly durable and efficient.
[Notes]
- *While non-slipness is an advantage, care must be taken when selecting a product for applications where it will be subject to impact.
- *Due to the meshing mechanism between the chain and sprocket, there are speed fluctuations due to its characteristics.
Small size conveyor chain types and structures
Double pitch
- - Compared to the RS type with attachment, the chain pitch is double (Double pitch) and the plate shape is flat.
- - There are two types of rollers: R rollers and S rollers, which can be used depending on the application.
- -Double pitch pitch sprockets and RS sprockets (S rollers with 30 or more teeth) can be used.
- -Suitable for relatively long distance, low speed transport.
RS Attachment Chains
- - This is a chain with an attachment attached to an RS roller chain (for transmission) type plate.
- - The chain pitch is small, so small items can be transported at small intervals, making it generally suitable for short-distance transport.
- - Fast, smooth and quiet driving.
- - In most cases, RS sprockets can be used.
Learn more about the components and their functions
| 1. Plate | 2. Pin | ||
|---|---|---|---|
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This is one of the parts that bears the tension acting on the chain. The precision of the holes into which the pins or bushes are press fit determines the quality of the chain, so they are machined particularly precisely to create a tough plate with high fatigue strength and impact resistance. | ![]() |
Both ends of the pin are press fit into holes in the outer plate and secured with rivets (Hollow Pin chains and Poly-steel chain are only press fit). The pins are subjected to shearing and bending forces through the plate, and when the chain articulate, they act as the axis of the bushing and slide, so strength and wear resistance are the main priorities when manufacturing. |
| 3. Bush | 4. Roller | ||
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Both ends of the bushing are press fit fitted into the inner plate and act as bearings for the pin and roller. Although it is subjected to complex forces through each part, it is finished with a highly wear-resistant specification. | ![]() |
The rollers are slip fit into the bushings, which absorb the shock when meshing with the sprocket, and roll when the chain is running, allowing the chain to move smoothly and helping to reduce running resistance. Wear resistance is important. |
| 5. Attachment | 6. spring clip and cotter pins | ||
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Bolt holes are provided. For details, please refer to the standard attachment types. | ![]() |
spring clip and cotter pin are important parts that prevent connecting link plate from falling off and maintain the chain's original strength. Be sure to install them properly. |
| 7. Inner link | 8. outer link | ||
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The two bushings are press fit fitted into the inner plate at both ends to form Inner link. Rollers are slip fit onto the outer periphery of the bushings. | ![]() |
Both ends of the two pins are press fit into the outer plate. After press fit, the ends of all pins except for the connecting link are riveted to prevent them from coming loose (Hollow Pin / Poly-steel chain are only press fit). |
| The three basic dimensions | slip fit | press fit | ||
|---|---|---|---|---|
| Pitch, roller diameter, and Inner link width are the three basic dimensions of a roller chain. When these dimensions are the same, the roller chain and sprocket are dimensionally compatible. |
A fit in which there is always a gap when the shaft and hole are combined. A fit in which the hole tolerance range is completely above the shaft (pin or bushing) tolerance range. | A fit that always creates interference when the shaft and hole are combined. A fit in which the tolerance range of the hole is completely below the tolerance range of the shaft (pin or bushing). |
Learn more about standard attachment types
Attachment type
A attachment

A type of chain with an attachment that has a hole on one side.
A1: 1 hole A2: 2 holes (*RS type has only 1 hole)
SA attachment

A type with a vertical attachment hole on one side of the chain.
SA1: 1 hole SA2: 2 holes (*RS type has only 1 hole)
K attachment

A style with attachments with holes on both sides of the chain.
K1: 1 hole K2: 2 holes (*RS type has only 1 hole)
SK attachment

A type with vertical attachments with holes on both sides of the chain.
SK1: 1 hole SK2: 2 holes (*RS type has only 1 hole)
AA attachment

A type of chain with attachments that have holes on the top and bottom of one side.
AA1: 1 hole AA2: 2 holes (*RS type has only 1 hole)
WA attachment

A style with a wide attachment with a hole on one side of the chain.
WA1: 1 hole WA2: 2 holes
KK attachment

A style with attachments that have holes on the top and bottom of both sides of the chain.
KK1: 1 hole KK2: 2 holes (*RS type has only 1 hole)
WK attachment

A style with wide attachments with holes on both sides of the chain.
WK1: 1 hole WK2: 2 holes
EP Attachment

A style in which the chain pin is extended to one side.
[Photo: EP attachment for each link]GNK Attachment

A chain with holes in the plates on both sides. (Only applies to Double pitch S-roller chains.)
[Photo: GNK1 attachment attached to each link]Note) WA, WK: RS type chains cannot have attachments attached to each link.
Organization
Attachments can be installed at intervals of one link or more, but when installing them at every even number of links, they should be installed on outer link, which makes them convenient for repairs.
Special Attachments
We also offer a variety of attachment types to suit your needs.
Small size conveyor chain product list
- General-purpose small size conveyor chain
- Corrosion Resistant Small size conveyor chain
- Special Small size conveyor chain
- Lube free small size conveyor chain
- Integrated Attachment
Chains - Indexing conveyor chain
- Free Flow Chain
Lube-free and long life significantly reduces maintenance man-hours and costs
Tsubaki Lambda Small size conveyor chain are the first in the industry to use special oil-impregnated bush, achieving a long life Lube-free and being used in a wide range of industries and applications.
The lineup includes Lambda Double pitch, Lambda RS type with attachments, BS Lambda with attachments, and Lambda RF type roller chains. Choose the chain that best suits your application and environment, with options including a coated specification that Lube-free and has enhanced corrosion resistance, KF Series that combines high-temperature specifications with specifications for food machinery, and a long-life Lambda chain with significantly improved wear resistance.
Lambda Double Pitch Chains
Lambda Double Pitch Chains
Model number RF2□□□S/R-LMC~
Double pitch uses special oil-impregnated bush, ensuring a long life even Lube-free.
- - By using special oil-impregnated bush, it can be used for long periods of time Lube-free.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- - The inner and outer plates are each blackened to give them some corrosion resistance and a luxurious appearance.
- -Double pitch has high overall length accuracy and is suitable for relatively long distance, low speed transport.
- - There are two types of rollers: R rollers and S rollers, which can be used depending on the application.
size
RF2040~RF2120
Attachment Type
A1, A2, K1, K2, SA1, SA2, SK1, SK2, EP, GNK1
Lambda Surface Treated Double Pitch Chain NP Series
Model number RF2□□□S/R-LMCNP~
This chain has a lambda Double pitch coating that improves corrosion resistance.
- -NP Series: Plates and rollers are nickel plated to provide mild corrosion resistance.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
size
RF2040~RF2100
Attachment Type
A1, A2, K1, K2, SA1, SA2, SK1, SK2, EP, GNK1
KF Series Lambda Double Pitch Chain
Model number RF2□□□S/R-LMCKF~
The specifications for the conventional heat-resistant Lambda Chain and Lambda Chain for food machinery have been integrated.
- ・Special lubricating oil that is resistant to evaporation and deterioration even in high temperature environments (150℃ to 230℃) provides maximum
It exhibits wear resistance. - - it Uses environmentally friendly NSF-H1 grade certified oil, so it can also be used in Food machinery.
size
RF2040~RF2100
Attachment Type
A1, A2, K1, K2, SA1, SA2, SK1, SK2, EP, GNK1
Long-life Lambda Double Pitch Chain
Model number RF2□□□S/R-LMCX~
This is Double pitch Lambda Chain that has significantly improved wear resistance.
- - Ultra-long life: The felt seal significantly improves the wear resistance of Lambda Chain.
- ・The lubricant for special oil-impregnated bush has been improved to comply with NSF H1 standards, making it suitable for use in food processing machinery.
- Compatible with Lambda Chain. However, the pin length is longer than that of Lambda Chain.
Please check the attachment dimensions and whether they will interfere with the device. - -The operating temperature range is -10℃ to 60℃.
size
RF2040~RF2100
Attachment Type
A1, A2, K1, K2, SA1, SA2, SK1, SK2, EP, GNK1
Lambda Hollow Pin Double Pitch Chains
Model number RF2□□□S/R-LMCHP~
Hollow Pin Double pitch with holes in the pin for attaching various attachments
It is a lambda specification.
- -special oil-impregnated bush are used for Hollow Pin bushings, allowing them to be used for long periods Lube-free.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- -The operating temperature range is -10℃ to 150℃.
size
RF2040~RF2080
Attachment Type
The attachment is
there is no.
RS Lambda attachment chain
RS Attachment Chains uses special oil-impregnated bush to meet a wide range of customer needs for Lube-free and long life, while also reducing overall costs.
I will contribute.
We also offer a lineup of lambda coated Double pitch with enhanced corrosion resistance, and KF Series that can be used in high temperature environments.
RS Lambda attachment chain
Model number RS□□-LMC~
RS Attachment Chains uses special oil-impregnated bush for long life even Lube-free.
It's a chain.
- - By using special oil-impregnated bush, it can be used for long periods of time Lube-free.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- ・Both the inner and outer plates have been given a black oxide finish, giving them some corrosion resistance. The exterior also has a luxurious feel.
- - The chain pitch is small, so small items can be transported at small intervals, making it generally suitable for short-distance transport.
size
RS35~RS140
Attachment Type
A1, K1, SA1, SK1, EP
Lambda RS Chain with Surface Coated Attachments NP Series
Model number RS□□-LMCNP~
Lambda RS Attachment Chains is coated to improve corrosion resistance.
It's a chain.
- -NP Series: Plates and rollers are nickel plated to provide mild corrosion resistance.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
size
RS35~RS100
Attachment Type
A1, K1, SA1, SK1, EP
KF Series Lambda RS Attachment Chain
Model number RS□□-LMCKF~
The specifications for the conventional heat-resistant Lambda Chain and Lambda Chain for food machinery have been integrated.
- ・Special lubricating oil that is resistant to evaporation and deterioration even in high temperature environments (150℃ to 230℃) provides maximum
It exhibits wear resistance. - - it Uses environmentally friendly NSF-H1 grade certified oil, so it can also be used in Food machinery.
size
RS40~RS80
Attachment Type
A1, K1, SA1, SK1, EP
Long-life Lambda RS Attachment Chain
Model number RS□□-LMCX~
This is an RS chain with attachments that significantly improves the wear resistance of Lambda Chain.
- - Ultra-long life: The felt seal significantly improves the wear resistance of Lambda Chain.
- ・The lubricant for special oil-impregnated bush has been improved to comply with NSF H1 standards, making it suitable for use in food processing machinery.
- Compatible with Lambda Chain. However, the pin length is longer than that of Lambda Chain.
Please check the attachment dimensions and whether they will interfere with the device. - -The operating temperature range is -10℃ to 60℃.
size
RS40~RS100
Attachment Type
A1, K1, SA1, SK1, EP
Lambda Hollow Pin RS Chains
Model number RS□□-LMCHP~
This is a Lambda specification Hollow Pin RS chain that has holes in the pins that can be used to attach various attachments.
- -special oil-impregnated bush are used for Hollow Pin bushings, allowing them to be used for long periods Lube-free.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- -The operating temperature range is -10℃ to 150℃.
size
RS40~RS80
Attachment Type
The attachment is
there is no.
Lambda BS Attachment Chains
This Lambda Chain conforms to the ISO 606 B series. It can be used as a direct replacement for existing BS series chains. We also offer KF Series that can be used in the food industry and in high-temperature environments.
Lambda BS Attachment Chains
Model number RS□□B-LM~
Lambda Chain compatible with ISO606 standard B series.
- - By using Tsubaki's unique bearing materials, material properties, and lubricating oil, we have succeeded in improving wear life.
In addition, we have established specifications that minimize extreme variations in quality and ensure stable performance. - -It is possible to directly replace BS series chains already installed in equipment manufactured in Europe.
- - A specially shaped pin is used in single strand of 08B to 16B, making it possible to "simple cutting and joining."
- - Reduced initial elongation: Significant reduction in initial elongation is achieved, reducing adjustment work.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
size
RS08B~RS24B
Attachment Type
A1, K1, SA1, SK1, EP
Lambda BS Attachment Chains KF Series
Model number RS□□B-LMCKF~
This Lambda Chain complies with BS standards and can be used in the food industry and in high temperature areas.
- - Can be used in high temperature ranges from -10°C to 230°C. Stable lubrication and wear resistance.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- - Please use sprockets for BS roller chains (ISO standard B series). (Made to order)
size
RS08B~RS16B
Attachment Type
A1, K1, SA1, SK1, EP
Lambda RF Roller Chains
Lambda RF Roller Chains
Model number RF□□B-LMC~
This is a lambda specification RF roller chain for direct loading transport. It enables transport Lube-free.
- - A roller chain with oval plates, suitable for transporting goods by placing them directly on the chain.
- - Uses NSF H1 Compliant lubricant, which can also be used in Food processing machinery.
- - Sprocket: RS sprockets can be used.
- ・Usable ambient temperature: -10℃ to 150℃
size
RF35~RF100
Attachment Type
The attachment is
there is no.
Points to note when considering and adopting Lambda Chain
- 1. Foreign matter contamination prevention: Do not use the chain in cases where it comes into direct contact with food or where there is a risk that peeling debris or wear debris may get into the food.
Even when using in environments other than food where peeling debris or wear debris is a problem, please take measures to prevent foreign matter from entering, such as by installing an appropriate cover.
Nickel plating is not subject to regulation under the Food Sanitation Act or the Industrial Safety and Health Act, but please be careful if you are concerned about the plating peeling. - 2. Regarding product oil: Depending on the conditions of use, the oil impregnated in the bushings may splash out.
Due to manufacturing reasons, Lambda Chain has a small amount of oil on it that is not NSF H1 compliant.
If the oil impregnated in the bushing is lost, it will rapidly run out of oil, leading to wear elongation and the end of its life. - 3. If dust or other debris is present in the operating environment, the product may wear out and reach the end of its service life earlier than expected.
Do not use the bushing in an environment containing chemicals, solvents, or degreasing agents that may remove the oil impregnated in the bushing, or in water or under vacuum.
Lambda Chain is not coated with anti-rust oil, so please store it away from high temperatures, humidity, and dust. - 4. Check for interference with the equipment. The pin lengths for Lube-free chains vary depending on the thickness of the outer and inner plates and whether or not a felt seal is used.
The pins are longer than those of RS roller chain, so please check for interference with equipment when replacing.
























