40BS21 High-Performance Sprocket 1-3/8" 40B29 Sprockets This 5305-2RS Bearing is a

This 5305-2RS Bearing is a high-precision premium double-sealed double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS

Part Number: D200B15

HC212-39 bearing is a normal-duty ball bearing insert made to C3 precision standards and utilizes an eccentric locking collar for securing a 2-7/16" shaft

For more information on a two groove 2C300F sheave

40BS21 High-Performance Sprocket 1-3/8" 40B29 Sprockets This 5305-2RS Bearing is aThis 40BS21 sprocket featured a 1 3 8" 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 #40 roller chain and sprocket thus preventing premature wear