40 Chain Sprocket With Eighteen Teeth And Seven Eighths Inch Finished Bore, Includes Keyway And Two Set Screws For Secure Mounting And Reliable Power Transmission, Designed For Durable Industrial Machinery And Conveyors

18-Tooth chain sprocket with 7/8 bore, 40BS18-7/8
✔️ 18 teeth, 7/8 finished bore with keyway and 2 set screws

A ready-to-install chain sprocket designed for #40 roller chain, common in conveyors, industrial machinery, and agricultural equipment. It features a 7/8 finished BS bore with a keyway and two set screws for secure mounting.

✅ Fits #40 roller chain (18-tooth)
✅ Bore: 7/8" finished bore (22.23 mm) BS style
✅ Keyway: 3/16 x 3/32 for secure drive
✅ Mounting: includes 2 set screws for secure mounting
✅ Pack: single sprocket

💡 What is a chain sprocket with a BS bore used for?

It’s a handy drive component in power transmission systems, pairing with a #40 roller chain for reliable motion transfer.

- Handy drive gear for conveyors and machinery using #40 roller chain - Helps maintain alignment with a keyed bore and two set screws - Works with standard shaft sizes and is a solid upgrade option