Other Special Sprockets

Product photo
  • A line-up of special sprockets is also available.
  • We offer sprockets for BS/DIN Series chain and torque limiters to meet customer needs.
  • *Sprockets for BS Chains :Standard BS/DIN products (Available chain sizes :RF06B~RS16B)
  • *Torque Limiter Sprockets :Finished on the friction surface of the center member. (Available chain sizes :RS40~RS100)

Sprockets for BS Chains

Sprockets for BS Chains
  • BS standard (European standard) roller chains require special BS sprockets.
    (RS sprockets/JIS standards cannot be used due to a different tooth width and outer diameter. )
  • Sizes, hardened teeth specifications, and bore finishings not shown in the dimensional chart are also available on an MTO basis. Contact us for more information.
  • Sizes not shown in the dimensional chart are also available on an MTO basis (For example: 20B, 56B). Contact us for more information.

Dimensions, Specifications

※Click the name for more information.

Chain size
RF06B RS08B RS10B RS12B RS16B

Note) When selecting sprocket specifications

・It is necessary to select a sprocket specification that corresponds to the customer's operating environment and the chain specification used. For details, please refer to the compatibility table for each chain and sprocket.

・Shaft bore remains as a pilot bore, so it must be machined by the customer before use. Click here if you require a product with a finished bore

Torque Limiter Sprockets

Torque Limiter Sprockets
  • Torque limiters are typical mechanical devices for overload protection, and such it is essential that the friction surface of their center member be finished properly to ensure the precise, accurate overload detection of the torque limiter.
  • Sprockets for torque limiters are provided with special surface finishing to realize the ideal surface roughness.

Model No. examples

RS40 - 1 A 21T - CM 30

Size

No. of strands

Hub Type

Number of teeth


Finished bore diameter d
Torque Limiter Sprockets
Model No. examples
Chain
RS40 RS50 RS60 RS80 RS100
W 6.5 8.0 10.5 13.5 16.0
t 7.3 8.9 11.9 15.0 18.0
  • ・Usage conditions :Sprocket width > Torque limiter bush width
    (Cannot be used even with the same dimensions )
  • ・All other dimensions are the same as those for standard 1A Type sprockets.
  • ・Refer to the torque limiter compatibility table for the d and Dw ranges.
  • ・Uses an H7 finished bore diameterd


*Be sure to check the torque limiter catalog for each dimension.

*Specify the model number of the torque limiter when placing your order.



Torque limiter compatibility table

Available sprocket range  d x Dw


RS40

Number of teeth 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 35 36 38 40 42 45 48 50
TL200 30x53
TL250 41x68
TL350 49x92

RS50

Number of teeth 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 35 36 38 40 42 45 48 50
TL250 41x68
TL350 49x92
TL500 74x132

RS60

Number of teeth 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 35 36 38 40 42 45 48 50
TL350 49x92
TL500 74x132
TL700 105x184

RS80

Number of teeth 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 35 36 38 40 42 45 48 50
TL500 74x132
TL700 105x184

RS100

Number of teeth 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 35 36 38 40 42 45 48 50
TL700 105x184

*Check the bush width if TL230 or TL350 are used with RS40 sprockets.

*Sprockets compatible with torque limiters are available. We also offer made-to-order sprockets.