40BS51 High-Performance Sprocket 1-7/16" 25-Tooth Sprocket and precision sprocket with 21

and precision sprocket with 21 hardened teeth that is manufactured to accept a 3535 bushing

Part #: UCW 201-8

Common Interchanges: 40BS42H

Weight With Hub: 71

40BS51 High-Performance Sprocket 1-7/16" 25-Tooth Sprocket and precision sprocket with 21This 40BS51 sprocket features a 1 7 16" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore