40 Chain Sprocket With 72 Teeth And 1.125 Inch Finished Bore Featuring A Precision Keyway And Two Set Screws For Secure Mounting And Smooth Power Transmission In Industrial Machinery Model 40BS72-1.125

72-Tooth #40 Chain Sprocket with 1-1/8 Bore, Single Unit
✔️ 72 teeth, 1 1/8 bore, #40 chain, keyway 1/4x1/8, set screws

This is a #40 roller chain sprocket with 72 teeth and a 1-1/8 finished bore (28.6 mm). It ships ready to install with a precision keyway and two set screws for secure mounting. Ideal for conveyors, industrial machinery, and agricultural equipment where steady power transfer matters.

✅ Bore: 1 1/8 in (28.6 mm) finished bore with keyway
✅ Teeth: 72, designed for smooth torque transfer
✅ Chain size: #40 roller chain, standard in mid-duty drives
✅ Mounting: BS bore with 2 set screws for secure mounting

💡 What is a chain sprocket with this size typically used for in power transmission?

This handy piece helps transfer torque between shafts in simple drive setups.

- Handy for conveyors and industrial machinery - Durable steel construction for long life - Keyway and set screws give secure mounting - Works with #40 roller chain and 1 1/8 bore