100BS21 Sprocket With 2-15/16" Finished Bore Roller Chain Tensioners This 100B17 sprocket is a

This 100B17 sprocket is a durable

100E24 sprockets are manufactured to accept a E type QD bushing which

and precision A-Plate sprocket with 8 teeth that is manufactured out of high-quality steel

Pitch Diameter: 93

100BS21 Sprocket With 2-15/16" Finished Bore Roller Chain Tensioners This 100B17 sprocket is aThis 100BS21 sprocket features a 2 15 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