50BS18 Sprocket With 1" Finished Bore 04B-2 Metric Roller Chain Our superior UCTB208 bearing with

Our superior UCTB208 bearing with a 40mm bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

Bearing Size: 6218

This 40BS43 sprocket features a 1-3/16" finished bore including a key-way and two setscrews

08B18H sprockets with a stock bore comes with the standard 12 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

Weight For Rim Only: 385LBS

50BS18 Sprocket With 1" Finished Bore 04B-2 Metric Roller Chain Our superior UCTB208 bearing withThis 50BS18 sprocket featured a 1" 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 or