40A58 Sprocket 0.5" Finished Bore This 3B68SD sheave features three

This 3B68SD sheave features three grooves

Pitch Diameter: 76

the 08B K1 attachment has a bent tab on both sides with one hole each for mounting

What sets this 6313 bearing apart from others is the ABEC 3 precision standard that this bearing is made to

Breaking Load: 9

40A58 Sprocket 0.5" Finished Bore This 3B68SD sheave features threeThis 40A58 sprocket is a durable, high quality, and precision A Plate sprocket that is manufactured out of high quality steel. Something else that is notable about this sprocket is that it 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 evenly coated with black oxide, which adds resistance to to the environment and will prevent