40BS22 Sprocket With 7/8" Finished Bore 2AK21 Pulley A 210B-1 chain is the

A 210B-1 chain is the double-pitch version of 10B chain

What sets this 6308-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

This 40BS30 sprocket featured a 1-3/16" finished bore with a key-way and two set screws

35B54 Sprocket Dimensions:

40BS34 1-1/8" Finished Bore Sprocket Dimensions:

40BS22 Sprocket With 7/8" Finished Bore 2AK21 Pulley A 210B-1 chain is theThis 40BS22 sprocket featured a 7 8" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or