40BS39 Sprocket With 7/8" Finished Bore 3V Three-Groove QD Bushed Sheaves Our superior UCFB205-14 bearing with

Our superior UCFB205-14 bearing with a 7/8" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

Hub Diameter: 42mm

Our UCHA204 bearing is dimensionally made to industry standards

Weight: 144lbs

Our UCF210-30 bearing is dimensionally made to industry standards

40BS39 Sprocket With 7/8" Finished Bore 3V Three-Groove QD Bushed Sheaves Our superior UCFB205-14 bearing withThis 40BS39 sprocket features a 7 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 #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 sprockets,