80BS30 Sprocket With 1-1/4" Finished Bore 120-240 Wear Gauge This 60BS31 sprocket features a

This 60BS31 sprocket features a 1-3/4" finished bore including a key-way and two setscrews

and 25:1 size 3 gearboxes

5314 Bearing Dimensions

35BS70 Sprocket Dimensions:

80BS30 Sprocket With 1-1/4" Finished Bore 120-240 Wear Gauge This 60BS31 sprocket features aThis 80BS30 sprocket features a 1 1 4" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 30 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 #80 roller chain and sprocket thus preventing premature