50B57 Sprocket With Stock Bore 4040 and precision 80 tooth sprocket

and precision 80 tooth sprocket that is manufactured to accept a U1 bushing

While the phosphate coated and then painted finish adds corrosion resistance to the 3TB48 pulley

This 2BK40 Pulley 5/8" bore is directly interchangeable with other manufacturers v-belt pulleys

next you place the chain gauge in-between the roller chain rollers like the image below

50B57 Sprocket With Stock Bore 4040 and precision 80 tooth sprocketThis 50B57 sprocket is a durable, premium quality, and precision 57 tooth sprocket that is manufactured out of high quality steel. This sprocket is manufactured for optimum performance, durability, and to strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #50 roller chain and sprocket, preventing premature wear or breakage. It is also