60B21 Sprocket With Stock Bore Shop By Brand This 6006-2RS ball bearing is

This 6006-2RS ball bearing is a high-precision premium quality sealed deep groove 30x55x13 ball bearing made to ABEC 3 precision standards from AXIS

50SK72 sprockets are manufactured to accept a SK type QD bushing which

SBRFB204-12 flange bearings are designed for circumstances where the bearing is mounted to a surface that is perpendicular to the shaft axis

and is designed to use a Q1 bushing

This 2B300SF sheave features two grooves

60B21 Sprocket With Stock Bore Shop By Brand This 6006-2RS ball bearing isThis 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