50BS42 Sprocket With 1-1/4" Finished Bore 50B31 Sprockets Sprocket Size: 120A70

Sprocket Size: 120A70

Because this chain tensioner floats on the chain

For more information on a single groove 13V600SH sheave

UCST201-8 bearing is a 1/2" bore normal-duty take-up bearing that utilizes set screws to secure to a 1/2" shaft

and precision sprocket with 20 hardened teeth that is manufactured to accept a E bushing

50BS42 Sprocket With 1-1/4" Finished Bore 50B31 Sprockets Sprocket Size: 120A70This 50BS42 sprocket features a 1 1 4" 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