100BS21 Sprocket With 2-15/16" Finished Bore Roller Chain Tensioners 06B40 sprockets with a stock

06B40 sprockets with a stock bore comes with the standard 16 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

This 100B17 sprocket is a durable

Bore: 11mm

100A16 Sprocket Dimensions

Insert bushing into component

100BS21 Sprocket With 2-15/16" Finished Bore Roller Chain Tensioners 06B40 sprockets with a stockThis 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