40BS39 Sprocket With 1-7/16" Finished Bore 40B70 Sprockets This 140A18 sprocket is a

This 140A18 sprocket is a durable

Our HCST207-20 bearing is dimensionally made to industry standards

Our superior HCTB209 bearing with a 45mm bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

6811-ZZ Ball Bearing Dimensions

40BS39 Sprocket With 1-7/16" Finished Bore 40B70 Sprockets This 140A18 sprocket is aThis 40BS39 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