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Product Specification
Boss Dia
120mm
Number of Teeth
76
Outside Dia
313.3mm
Overall Length
60mm
Pitch
1/2inch
Reference
4TR76
Brand
Medway
Quick Order Code
BB-20808
Product Description

The 4TR76 Pilot Bore Chain Sprocket 08B3 is a high-capacity triplex chain sprocket engineered for heavy-duty power transmission in industrial applications demanding maximum load capacity and reliability. This British standard sprocket delivers consistent performance in conveyor systems, machinery drives, and other demanding mechanical applications requiring efficient power transfer.

Specifications:

  • 08B3 British standard roller chain sprocket
  • 1/2 inch pitch x 76 teeth
  • Outside diameter: 313.3mm
  • Boss diameter: 120mm
  • Overall length: 60mm
  • Brand: Medway

Key Benefits:

  • High tooth count (76 teeth) suitable for applications requiring lower speed ratios and higher torque transmission
  • Triplex (three-strand) configuration for enhanced load capacity and superior power transfer
  • Precision-engineered design for secure and stable shaft mounting
  • Manufactured to British standard specification for compatibility with standard triplex roller chains
  • Robust construction ideal for heavy-duty industrial environments
  • Trusted quality from leading brand Medway

Typical Applications:

  • Industrial conveyor systems
  • Heavy-duty machinery requiring high torque transmission
  • Large-scale power transmission equipment
  • Applications demanding reliable, high-capacity performance

For assistance in selecting the correct sprocket for your specific application or to discuss your power transmission requirements, our technical team is available to help.


  • 08B3 Roller Chain To Suit