50BS72 Sprocket With 1-1/4" Finished Bore Roller Chain Wear Gauge This 4TB64 Pulley uses a

This 4TB64 Pulley uses a P1-Series Bushing

This #140 roller chain tensioner provides consistent tension on the chain with minimal drive wear

Pulley Size: 2BK47

Weight Per Ft: 0

41B70 Sprocket Dimensions

50BS72 Sprocket With 1-1/4" Finished Bore Roller Chain Wear Gauge This 4TB64 Pulley uses aThis 50BS72 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