41BS54 High-Performance Sprocket 1-1/8" 1VP25 Pulley the 12B-4 roller chain is

the 12B-4 roller chain is pre-loaded to a specific amount to reduce initial and long-term elongation

This 100B32 sprocket is a durable

Part #: HCFS 210-32

the 5207-ZZ bearing features raceways that are precision honed to a superb finish

UCTB210 bearing is a 50mm bore tapped-base normal-duty mounted bearing unit that utilizes set screws to secure to a 50mm shaft

41BS54 High-Performance Sprocket 1-1/8" 1VP25 Pulley the 12B-4 roller chain isThis 41BS54 sprocket features a 1 1 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 #41 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