100E21 Sprocket (QD Type) 100B29 Sprockets This 100BS15 sprocket features a

This 100BS15 sprocket features a 1-15/16" finished bore with a key-way and two set screws

Sprocket Size: 08B14

Sprocket Size: 100A27

and precision sprocket with 27 hardened teeth

Keyway Size: 1/4" X 1/8"

100E21 Sprocket (QD Type) 100B29 Sprockets This 100BS15 sprocket features aThis 100E21 sprocket is a durable, high quality, and precision sprocket with 21 hardened teeth that is manufactured to accept a E bushing. Sprockets that have hardened teeth last longer, perform better, 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 #100 roller chain and sprocket. Meeting strict ANSI Standards