Transmissions
Chain Sprockets
Pilot Bore Sprockets
5/8inch Pitch (10B1, 10B2, 10B3) Pilot Bore Sprockets
10B3 - 5/8inch Triplex Chain Sprocket
Quick Code: BB-20822
5TR21 Pilot Bore Chain Sprocket 10B3
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Product Specification
Boss Dia
85mm
Number of Teeth
21
Outside Dia
113.4mm
Overall Length
60mm
Pitch
5/8inch
Reference
5TR21
Brand
Medway
Quick Order Code
BB-20822
Product Description
10B3 - British Standard Pilot Bore Roller Chain Sprocket
This 5TR21 pilot bore chain sprocket is engineered to meet British standard specifications and is designed for use with 5/8 inch pitch triplex roller chains. With 21 teeth, this sprocket offers an ideal balance between speed and torque transmission, making it suitable for a wide range of industrial power transmission applications.
Key Specifications:
- Pitch: 5/8 inch
- Number of Teeth: 21
- Boss Diameter: 85mm
- Outside Diameter: 113.4mm
- Overall Length: 60mm
- Brand: Medway
- Reference: 5TR21
Applications:
This sprocket is ideal for use in machinery requiring reliable chain drive power transmission, including:
- Agricultural equipment
- Industrial conveyors
- Manufacturing machinery
- General purpose power transmission systems
The pilot bore design allows for straightforward installation onto standard shafts, while the robust British standard construction ensures durability and long service life in demanding industrial environments.



