40 Chain Sprocket With 55 Teeth And One And One Eighth Inch Finished Bore, Includes Keyway And Two Set Screws For Secure Mounting, Ideal For Durable And Efficient Power Transmission In Chain Drive Systems

55-Tooth #40 Chain Sprocket, single unit, 1 1/8 Bore
✔️ 55 teeth, #40 chain sprocket, 1-1/8 in bore, keyway, 2 screws

This ready-to-install #40 chain sprocket delivers reliable power transmission in conveyors, agricultural equipment, and industrial machinery. It ships with a precision keyway and two set screws for secure mounting on a 1 1/8 in shaft (28.6 mm).

✅ Teeth: 55
✅ Chain size: #40
✅ Bore: 1-1/8 in (28.6 mm) finished bore with keyway
✅ Keyway: 1/4 x 1/8
✅ Mounting: Includes 2 set screws

💡 What is a chain sprocket with a 1 1/8 bore used for in power transmission systems?

This handy component helps transfer torque reliably in common drive setups.

- Drives with #40 roller chain
- Fits 1-1/8 in shafts with 1/4 x 1/8 keyway
- Secure mounting with two set screws
- Common in conveyors and agricultural machinery