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.
[Click to enlarge]
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.
[Click to enlarge]
Learn more about the components and their functions
| 1. Plate | 2. Pin | ||
|---|---|---|---|
 |
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 | ||
 |
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
This chain uses needle bearings between the pins and bushes to minimize pitch elongation.
Ideal for conveyors that require positioning.
Bearing Bush Chain needles (made of steel) inserted between the pin and bush, needle gauge chains have needle Indexing Table Chain have needle bearings (made of steel) inserted in the bearing section, outboard roller and guide rollers, and Mini Tact Chain have steel needle bearings inserted in the bearing section, all of which minimize wear and elongation, allowing for accurate tact operation.
Bearing Bush Chain
Bearing Bush Chain NB (Standard) Series
Model number RF2□□□R-NB～
Insert a needle (made of steel) between the pin and bush + steel (only the plate is nickel-plated)
- - The chain stretches slightly (0.02%) when the vehicle starts to operate, but there is no subsequent wear or elongation.
- ・We have a wealth of experience in special shapes and can meet a variety of requests.
- - RF Double pitch pitch R roller sprockets can be used.
- ・使用温度範囲：-10℃～150℃
size
RF2040～RF2080
Attachment Type
A2, K2
Bearing Bush Chain NBH (High Precision) Series
Model number RF2□□□R-NBH～
The upper surface of the attachment is ground, and the gap between the bush and roller is reduced.
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- - The chain stretches slightly (0.02%) when the vehicle starts to operate, but there is no subsequent wear or elongation.
- - The top surface of the attachment is ground to reduce variation in height between adjacent attachments.
- ・The clearance between the bushing and roller is half that of NB (Standard) Series, reducing backlash when the sprocket meshes.
We are doing it. - - RF Double pitch pitch R roller sprockets can be used.
- ・使用温度範囲：-10℃～150℃
size
RF2040～RF2080
Attachment Type
A2, K2
Bearing Bush Chain NBSS (stainless steel) Series
Model number RF2□□□R-NBSS～
All parts other than the needle are made of 18-8 stainless steel, and the bearing part is sealed.
- - The wear elongation is an extremely small value of 0.06% after10 7 bending cycles.
- ・All parts except the needle are made of stainless steel, and the bearing part is sealed, so it can withstand water droplets
You can use it. - ・We have a wealth of experience in special shapes and can meet a variety of requests.
- ・使用温度範囲：-10℃～60℃
- - RF Double pitch pitch R roller sprockets can be used.
size
RF2040～RF2080
Attachment Type
A2, K2
Bearing Cage Chain
Bearing Cage Chain
Model number RF2□□□R-NC～
A needle cage (made of engineering plastic) is inserted between the pin and bushing.
- - After a slight initial wear elongation (0.03%) occurs at the start of exercise, no further wear elongation occurs.
- - The main chain is made of steel. It is a cheaper chain than Bearing Bush Chain.
- ・使用温度範囲：-10℃～60℃
- - RF Double pitch pitch R roller sprockets can be used.
size
RF2040～RF2080
Attachment Type
A2, K2
Indexing Table Chain
Indexing Table Chain
Model number BC□□□D/S□□～
Needle bearings (steel) are inserted into the bearing section, outboard roller, and guide rollers.
- - After the initial wear elongation (0.01%) occurs, no further wear elongation occurs.
- - Chain pitch accuracy is within ±0.05 mm, allowing for highly accurate positioning.
- -The main body is made of steel and has been treated with a black oxide finish.
- ・使用温度範囲：-10℃～60℃
- - A sprocket for the tact table is required.
size
BC050～BC150
Mini Tact Chain
Mini Tact Chain
Model number BCM12.5-9, BCM15-9
Steel needle bearings inserted into the bearing section
- - After the initial wear elongation (0.01%) occurs, no further wear elongation occurs.
- - Chain pitch accuracy is ±0.05mm, and the small pitch allows for high-precision positioning of small workpieces.
It's perfect. - ・By using aluminum for the inner block, weight is reduced, allowing for a compact design including the drive unit.
is. - ・使用温度範囲：10℃～40℃
- - A sprocket for Mini Tact Chain is required.
size
BCM12.5-9,BCM15-9
Attachment Type
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