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Product Specification
Boss Dia
25mm
Number of Teeth
12
Outside Dia
40mm
Overall Length
35mm
Pilot Bore Size
10mm
Pitch
3/8inch
Reference
3TR12
Brand
Dunlop
Quick Order Code
BB-20741
Product Description

06B3-12 Triplex Chain Sprocket

This Dunlop manufactured triplex chain sprocket is engineered for reliable power transmission in heavy-duty industrial applications. The 12-tooth configuration combined with the triplex (three-strand) design makes it ideal for systems requiring increased load capacity and torque transmission.

  • 06B3 British standard roller chain sprocket
  • 3/8 inch pitch with 12 teeth
  • Triplex (three-strand) configuration for enhanced load capacity
  • Outside diameter: 40mm
  • Boss diameter: 25mm
  • Pilot bore size: 10mm (suitable for machining to your exact shaft requirements)
  • Overall length: 35mm
  • Manufactured by Dunlop for consistent quality and reliable performance

Ideal Applications:

  • Industrial machinery and equipment
  • Conveyor systems requiring higher torque transmission
  • Heavy-duty power transmission drives
  • Equipment requiring multiple-strand chain configurations

The pilot bore design allows for easy machining to your exact shaft dimensions, providing a customised fit for your specific application. This sprocket is part of our comprehensive range of 06B3 3/8inch pitch triplex chain sprockets, offering tooth counts from 8 to 76 teeth to suit various drive ratios and system requirements.

If you require assistance in selecting the correct sprocket for your chain drive system, our technical team is available to provide expert guidance.


  • 06B3 Roller Chain To Suit