50BS21 Sprocket With 1-1/8" Finished Bore filter_H40BS9 100Q30 sprockets are bored to

100Q30 sprockets are bored to accept a Q1 type taper bushing

This 40BS25 sprocket featured a 5/8" finished bore with a key-way and two set screws

UEFCS206-19 flange cartridge bearings are designed for circumstances where the bearing is mounted to a surface that is perpendicular to the shaft axis

Sprocket Size: 120A28

This 50BS25 sprocket featured a 1-1/4" finished bore with a key-way and two set screws

50BS21 Sprocket With 1-1/8" Finished Bore filter_H40BS9 100Q30 sprockets are bored toThis 50BS21 sprocket featured a 1 1 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 #50 roller chain and sprocket thus preventing premature wear