60BS21 21-Tooth Sprocket 1-15/16" Bore #60 Chain filter_60BS23-FB Sprocket Size: 40BTB70

Sprocket Size: 40BTB70

meaning it is compatible with most gearbox brands

Transversal Pitch (V): 48

Bore: 75mm

60BS21 21-Tooth Sprocket 1-15/16" Bore #60 Chain filter_60BS23-FB Sprocket Size: 40BTB70This 60BS21 sprocket featured a 1 15 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #60 roller chain and sprocket thus preventing premature