Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B3 - 1/2inch Triplex Chain Sprockets
Quick Code: BB-20798
4TR33 Pilot Bore Chain Sprocket 08B3
08B3-33 Triplex Chain Sprocket
This 33-tooth pilot bore sprocket is engineered to meet British standard 08B3 specifications and delivers reliable power transmission for a wide range of industrial applications. With a 1/2 inch pitch triplex configuration, this mid-range sprocket provides an excellent balance between speed and torque, making it suitable for both moderate and heavy-duty drive systems.
Key Specifications:
- 08B3 British standard roller chain sprocket
- 1/2 inch pitch x 33 teeth
- Outside diameter: 138.4mm
- Boss diameter: 110mm
- Pilot bore size: 20mm
- Overall length: 55mm
- Brand: Medway
Applications:
The 33-tooth configuration makes this sprocket particularly suited for:
- Industrial machinery requiring balanced speed and torque
- Conveyor systems with standard operational demands
- Heavy-duty power transmission applications
- General-purpose drive assemblies
- Manufacturing equipment and production line systems
As part of our comprehensive 08B3 triplex chain sprocket range, this sprocket maintains full compatibility with standard 1/2 inch pitch triplex roller chains. Our technical team is available to help you select the ideal sprocket configuration for your specific application requirements.



