Transmissions
Chain Sprockets
Pilot Bore Sprockets
3/8inch Pitch (06B1, 06B2, 06B3) Pilot Bore Sprocket
06B1 - 3/8inch Simplex Chain Sprocket
Quick Code: BB-20183
3SR21 Pilot Bore Sprocket 06B1
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Product Specification
Boss Dia
48mm
Number of Teeth
21
Outside Dia
68mm
Overall Length
28mm
Pilot Bore Size
12mm
Pitch
3/8inch
Reference
3SR21
Brand
Medway
Quick Order Code
BB-20183
Product Description
The 3SR21 Pilot Bore Sprocket 06B1 is a precision-engineered British standard simplex chain sprocket designed for reliable power transmission in a wide range of industrial applications.
Key Features:
- 06B1 British standard roller chain sprocket
- 3/8 inch pitch with 21 teeth
- Pilot bore design (12mm) for easy machining to your required shaft size
- Outside diameter: 68mm
- Boss diameter: 48mm
- Overall length: 28mm
- Manufactured to exacting British Standard specifications
- Supplied by Medway, a trusted name in transmission components
Applications:
This 21-tooth sprocket is ideal for use in:
- Conveyor systems
- Industrial machinery
- Agricultural equipment
- Material handling systems
- General mechanical power transmission applications
The pilot bore design allows for versatile integration into your existing systems, making it a cost-effective solution for machinery requiring a 3/8 inch pitch simplex roller chain. If you require assistance in selecting the correct 06B1 sprocket specification for your application, our technical team is available to provide expert guidance.



