60B21 Sprocket With Stock Bore Shop By Brand Our superior UCFT209-28 bearing with

Our superior UCFT209-28 bearing with a 1-3/4" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

and is designed to use a Q1 bushing

40B55 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

This 6304-ZZ ball bearing is a high-precision premium quality deep groove shielded 20x52x15 ball bearing made to ABEC 3 precision standards from AXIS

This 50BS33 sprocket features a 3/4" finished bore including a key-way and two setscrews

60B21 Sprocket With Stock Bore Shop By Brand Our superior UCFT209-28 bearing withThis 60B21 sprocket 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 60B21 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #60 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated