40 Chain Sprocket, 20 Tooth, Finished Bore One And One Eighth Inch, Includes Keyway And Set Screws, Durable Power Transmission Sprocket For Industrial Machinery And Equipment, Precision Machined Teeth For Smooth Operation In Harsh Duty Applications

High-performance #40 chain sprocket with 20 teeth and 1-1/8 inch finished bore.
✔️ 20 teeth for #40 roller chain, 1-1/8 inch bore with keyway and two set screws for solid mounting.

This #40 chain sprocket is a go-to part for power transmission, typically found in setups like conveyors, industrial machines, and farm gear where it helps keep things running smoothly and efficiently.

✅ 20 teeth optimized for #40 roller chain
✅ 1-1/8 inch finished bore with a 1/4 x 1/8 inch keyway for precise fit
✅ Includes two set screws to ensure secure and vibration-resistant mounting

💡 Why use a finished bore on chain sprockets for reliable drives?
This design locks in tight for better power flow in mechanical systems.
- Delivers exact fits that prevent chain slip
- Boosts durability in high-load scenarios like factory belts
- Simplifies swaps and cuts downtime on equipment repairs