40 Chain Sprocket 17 Tooth Seven Eighths Inch Finished Bore With Keyway And Two Set Screws For Secure Mounting And Reliable Power Transmission On Standard 40 Chain In Industrial Applications

#40 Chain Sprocket: 17 Teeth, 7/8 Bore, Model 40BS17-7/8
✔️ 17-tooth sprocket, 7/8 finished bore, model 40BS17-7/8, single unit

The #40 chain sprocket with 17 teeth and a 7/8 finished bore is a standard power-transmission part. It’s designed to fit #40 roller chain and is commonly used on conveyors, farm equipment, and general machinery.

✅ Chain Size: #40 roller chain
✅ Teeth: 17
✅ Bore: 7/8 in (22.23 mm) finished bore, BS style
✅ Keyway: 3/16 x 3/32 in (4.76 x 2.38 mm)
✅ Mounting: Includes 2 set screws

💡 What is a chain sprocket used for in industrial power transmission? This handy piece helps transfer torque and motion between a drive shaft and a roller chain.

- Supports torque transfer with #40 chain - Fits 7/8 in bore and keyway with set screws - Ideal for conveyors, agricultural equipment, and light industrial machines - Durable BS bore design for steady performance