Tsubaki product selection

Other Special Sprockets

We have a lineup of dedicated sprockets.
RS sprockets, B-series sprockets, Torque Limiter sprockets, and various other types of sprockets are available to meet your specific needs.
*Sprocket B-series: Applicable chain sizes: RF06B to RS16B
* Torque Limiter sprocket: Center member friction surface finished (applicable chain sizes: RS40 to RS100)

Sprocket B-series

European standard roller chains require a special B-series sprocket.
(RS sprockets for JIS standard RS roller chain cannot be used because their tooth width and outer diameter dimensions are different.)
Since this is a made-to-order product, we can also accommodate sizes not listed in the dimension list, tooth tip hardening specifications, and shaft hole machining. Please contact us for details.
We can also handle sizes not listed in the dimension list (e.g. 20B, 56B, etc.). Please contact us for details.

*Click to display detailed information.

Chain size
RF06B	RS08B	RS10B	RS12B	RS16B

Note: When selecting sprocket specifications

- You must select a sprocket that is compatible with your operating environment and the chain specifications you are using. For details, please refer to the compatibility chart for various chains and sprockets.

・The shaft hole is a pilot bore hole, so you will need to process the shaft hole yourself before use. If you require a product with a processed shaft hole, please click here

For Torque Limiter, which are Mechanical protector, the finish of the center member friction surface is important for accurate and reliable overload detection.
Torque Limiter sprockets have been specially treated to achieve an ideal surface finish with minimal surface roughness.

RS40	-	1	A	21T	-	CM	30
｜ Size		｜ No. of strands	｜ Hub type	｜ Number of teeth		｜｜	｜ Finished shaft hole diameter d
						Torque Limiter sprocket

chain No.	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 W dimension > Torque Limiter bush width
(Cannot be used even if the dimensions are the same)
-Other dimensions are the same as the standard sprocket 1A type.
・For d and Dw, please refer to the "Torque Limiter Compatibility Table."
・d is finished with H7.

*Please be sure to check the Torque Limiter catalog for dimensions of each part.

*When ordering, be sure to specify Torque Limiter model number.

Compatible sprocket range dx Dw

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

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

*When using TL250 or TL350 with RS40 sprocket, please check the bushing width.

*We can accommodate sprockets that match Torque Limiter. We can also accommodate other special dimensions.