Transmissions
Chain Sprockets
Pilot Bore Sprockets
3/4inch Pitch (12B1, 12B2, 12B3) Pilot Bore Sprockets
12B2 - 3/4inch Duplex Chain Sprocket
Quick Code: BB-20643
6DR21 Pilot Bore Chain Sprocket 12B2
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Product Specification
Boss Dia
100mm
Number of Teeth
21
Outside Dia
136mm
Overall Length
50mm
Pilot Bore Size
20mm
Pitch
3/4inch
Reference
6DR21
Brand
Medway
Quick Order Code
BB-20643
Product Description
12B2 British Standard Roller Chain Sprocket
The 6DR21 is a premium pilot bore chain sprocket engineered for heavy-duty power transmission applications. This duplex sprocket combines robust construction with versatile sizing, making it an ideal choice for conveyor systems, agricultural machinery, manufacturing equipment, and material handling applications.
Key Specifications:
- 3/4 inch pitch x 21 teeth
- Outside Diameter: 136mm
- Boss Diameter: 100mm
- Overall Length: 50mm
- Pilot Bore Size: 20mm
- Manufacturer: Medway
Features & Benefits:
- British Standard Compliant: Fully conforms to British Standard specifications for complete compatibility with standard 12B2 duplex roller chains
- Pilot Bore Design: The 20mm pilot bore allows for easy on-site machining to your specific shaft size and keyway configuration
- Heavy-Duty Construction: Duplex design provides greater load capacity than simplex alternatives, ensuring reliable performance in demanding industrial environments
- Precision Engineering: Manufactured to exacting standards by trusted supplier Medway
This sprocket is particularly suited for applications requiring moderate gear ratios and dependable torque transmission. For assistance in selecting the correct sprocket configuration for your specific application, please contact our technical team.
