50BS84 Sprocket 1-15/16" Bore #50 Roller Chain ANSI filter_40BS43-FB What sets this R8-2RS bearing

What sets this R8-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

UCFCSX17-55 Bearing Dimensions

This 120F54 sprocket is a durable

Dimension (D): 100

Common Interchanges: 40BS70H

50BS84 Sprocket 1-15/16" Bore #50 Roller Chain ANSI filter_40BS43-FB What sets this R8-2RS bearingThis 50BS84 sprocket features a 1 15 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 #50 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