40 Chain Sprocket With 21 Tooth And 1 Inch Finished Bore, Includes Keyway And Set Screws For Secure Mounting, Durable Power Transmission Sprocket Ready To Install For Reliable Drive And Long Lasting Performance

Premium #40 chain sprocket, 21 teeth, 1" bore, single unit
✔️ 21-tooth, 1 finished bore with keyway and 2 set screws

This #40 chain sprocket is a robust power-transmission component built for conveyors, industrial machinery, and agricultural equipment. It ships ready to install with a precision keyway and two set screws for secure mounting.

✅ Chain size: #40 roller chain
✅ Teeth: 21
✅ Bore: 1 in finished bore
✅ Bore style: BS
✅ Keyway: 1/4 x 1/8
✅ Mounting: Includes 2 set screws

💡 What is a chain sprocket used for? This handy component helps transfer rotary motion in chain-drive systems.
- Power transmission in conveyors, agricultural equipment, and industrial machinery.
- Designed for #40 chain, 21 teeth, and 1 in bore.
- Includes keyway and two set screws for secure mounting.