Transmissions
Chain Sprockets
Pilot Bore Sprockets
3/4inch Pitch (12B1, 12B2, 12B3) Pilot Bore Sprockets
12B3 - 3/4inch Triplex Chain Sprockets
Quick Code: BB-20857
6TR21 Pilot Bore Chain Sprocket 12B3
Also Try
12B1 - 3/4inch Simplex Chain Sprockets
12B2 - 3/4inch Duplex Chain Sprocket
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Product Specification
Boss Dia
100mm
Number of Teeth
21
Outside Dia
136mm
Overall Length
70mm
Pitch
3/4inch
Reference
6TR21
Brand
Medway
Quick Order Code
BB-20857
Product Description
The 6TR21 is a 12B3 British standard pilot bore roller chain sprocket engineered for reliable power transmission in demanding industrial applications. This triplex (three-row) chain sprocket delivers exceptional load capacity and durability for heavy-duty machinery.
Specifications
- Pitch: 3/4 inch
- Number of Teeth: 21
- Boss Diameter: 100mm
- Outside Diameter: 136mm
- Overall Length: 70mm
- Manufacturer: Medway
Key Features
- Pilot bore design allows for custom machining to fit your exact shaft dimensions
- Built to exacting British standard specifications for consistent performance
- Triplex configuration provides increased load capacity for heavy-duty applications
- Precision engineered for smooth, efficient power transfer
Ideal Applications
Perfect for industrial machinery, conveyor systems, and equipment where reliable power transmission and load capacity are essential. The 21-tooth configuration offers an excellent balance between torque and speed characteristics for mid-range sprocket applications.
In stock and ready for quick dispatch from our UK-based warehouse. Contact our technical team for assistance with shaft customization or application guidance.
