Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B1 - 1/2inch Simplex Chain Sprockets
Quick Code: BB-20211
4SR12 Pilot Bore Sprocket 08B1
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Product Specification
Boss Dia
33mm
Number of Teeth
12
Outside Dia
53mm
Overall Length
25mm
Pilot Bore Size
10mm
Pitch
1/2inch
Reference
4SR12
Brand
Medway
Quick Order Code
BB-20211
Product Description
08B1-12 Simplex Chain Sprocket
This compact 12-tooth sprocket is an essential component for light to medium-duty power transmission applications. Engineered to British standard specifications, it delivers reliable performance in machinery requiring precise chain engagement and smooth operation.
- 08B1 British standard roller chain sprocket
- 1/2 inch pitch with 12 teeth
- Pilot bore design with 10mm bore size for secure mounting
- Boss diameter: 33mm
- Outside diameter: 53mm
- Overall length: 25mm
- Manufactured by Medway to high quality standards
Typical Applications:
- Conveyor systems and material handling equipment
- Small machinery and industrial automation
- Agricultural equipment
- Textile machinery and printing equipment
- General power transmission where compact sprockets are required
This 12-tooth sprocket is ideal for applications requiring higher speed ratios and is particularly suitable for smaller drive systems. The compact design makes it an excellent choice where space constraints are a consideration.

Product Reviews
Matthew G 



14 January 20
Good quality sprocket
Good quality sprocket
john B 



21 March 21
was perfect for my job in hand.
was perfect for my job in hand.
Cedric S 



26 February 24
Nice product, worked well just the job
Nice product, worked well just the job


