50BS54 Sprocket With 1-3/8" Finished Bore UCF200 Four Bolt Set-Screw Flange Bearings Additionally this bushing features a

Additionally this bushing features a 11 millimeter bore with a standard keyway

the 5309 bearing features raceways that are precision honed to a superb finish

Something else that is notable about this 06B18 sprocket is that it fully meets all ISO Standards

Our 100 stainless steel roller links are manufactured to ANSI B29

Bearing Insert: UC 211

50BS54 Sprocket With 1-3/8" Finished Bore UCF200 Four Bolt Set-Screw Flange Bearings Additionally this bushing features aThis 50BS54 sprocket features a 1 3 8" 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