Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B3 - 1/2inch Triplex Chain Sprockets
Quick Code: BB-20774
4TR09 Pilot Bore Chain Sprocket 08B3
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Product Specification
Boss Dia
24mm
Number of Teeth
9
Outside Dia
41mm
Overall Length
46mm
Pilot Bore Size
12mm
Pitch
1/2inch
Reference
4TR09
Brand
Medway
Quick Order Code
BB-20774
Product Description
The 4TR09 Pilot Bore Chain Sprocket 08B3 is a compact 9-tooth triplex chain sprocket engineered for precision power transmission in space-constrained applications. This British standard sprocket delivers reliable performance in demanding industrial environments where high load capacity and efficient power transfer are essential.
Product Specifications:
- 08B3 British standard roller chain sprocket
- 1/2 inch pitch x 9 teeth
- Pilot Bore Size: 12mm
- Outside Diameter: 41mm
- Boss Diameter: 24mm
- Overall Length: 46mm
- Brand: Medway
Key Features:
- Compact Design: With only 9 teeth, this sprocket is ideal for high-speed applications requiring reduced size and weight
- Triplex Configuration: Three-strand design provides superior load distribution and maximum power transfer capability
- British Standard Specification: Ensures full compatibility with standard 08B3 triplex roller chains
- Precision Engineering: Manufactured to exacting standards by trusted brand Medway
- 12mm Pilot Bore: Versatile mounting option suitable for various shaft sizes
Applications:
Ideal for use in industrial machinery, conveyor systems, agricultural equipment, and other high-speed power transmission applications where compact sprocket solutions are required. Perfect for systems requiring quick speed multiplication with reliable, heavy-duty performance.
Our technical team is available to assist you in selecting the correct sprocket for your specific application requirements.



