Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B1 - 1/2inch Simplex Chain Sprockets
Quick Code: BB-20217
4SR18 Pilot Bore Sprocket 08B1
08B1-18 Simplex Chain Sprocket
This 08B1 British standard roller chain sprocket is engineered for reliable power transmission in a wide range of industrial and mechanical applications. With 18 teeth and a 1/2 inch pitch, it offers an ideal balance between torque capacity and rotational speed for medium-duty operations.
- 08B1 British standard roller chain sprocket
- 1/2 inch pitch x 18 teeth
- Pilot bore size: 12mm for secure shaft mounting
- Boss diameter: 56mm
- Outside diameter: 77.8mm
- Overall length: 28mm
- Manufactured by Medway to high quality standards
Applications:
Ideal for use in conveyor systems, agricultural machinery, industrial equipment, and general power transmission systems where a 1/2 inch pitch chain is specified. The 18-tooth configuration makes it suitable for applications requiring moderate speed reduction or torque multiplication.
This sprocket is designed to work seamlessly with 08B1 simplex roller chains and is compatible with standard 12mm pilot bore shafts, making it a versatile choice for retrofitting or upgrading existing chain drive systems.



