100BS21 Sprocket With 2-3/16" Finished Bore 12-Tooth Sprocket This 100E22 sprocket is a

This 100E22 sprocket is a durable

Inner Plate Height (H): 6

Sprocket Size: 100BTB45

Recommended Maximum Bore: 2-1/46"

06B17H sprockets with a stock bore comes with the standard 10 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

100BS21 Sprocket With 2-3/16" Finished Bore 12-Tooth Sprocket This 100E22 sprocket is aThis 100BS21 sprocket features a 2 3 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 21 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 100BS21 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket thus preventing