Transmissions
Chain Sprockets
Pilot Bore Sprockets
5/8inch Pitch (10B1, 10B2, 10B3) Pilot Bore Sprockets
10B3 - 5/8inch Triplex Chain Sprocket
Quick Code: BB-20844
5TR76 Pilot Bore Chain Sprocket 10B3
10B3 British Standard Pilot Bore Roller Chain Sprocket
The 5TR76 is a precision-engineered pilot bore chain sprocket manufactured to British standard specifications. This large 76-tooth sprocket is designed for use with 5/8 inch pitch triplex roller chain and is ideal for applications requiring low-speed, high-torque power transmission.
Key Specifications:
- Pitch: 5/8 inch
- Number of Teeth: 76
- Boss Diameter: 130mm
- Outside Diameter: 392.1mm
- Overall Length: 60mm
- Pilot bore design for easy shaft mounting
Applications:
This large-diameter sprocket is commonly used in machinery requiring lower speed ratios and increased torque multiplication, including heavy-duty conveyor systems, industrial pumps, compressors, and gear reduction applications where consistent and reliable chain drive performance is essential. The 76-tooth configuration provides optimal speed reduction within the 10B3 sprocket range.
Quality & Performance:
- Manufactured by Medway to exacting British standards
- Pilot bore design for straightforward installation and removal
- Compatible with British standard 10B3 triplex roller chains
- Precision engineered for durability and optimal long-term performance



