Transmissions
Chain Sprockets
Bored & Keyed Sprockets
1/2inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701017
08B1 21T Sprocket Comes With 35mm Bore & Keyway with 2 Grubscrews (4SR21 35BK&2GS)
Also Try
1inch Pitch Bored & Keyed Sprockets
3/4inch Pitch Bored & Keyed Sprockets
3/8inch Pitch Bored & Keyed Sprockets
5/8inch Pitch Bored & Keyed Sprockets
Buy Now
Product Specification
Bore
35mm
Number of Teeth
21
Pitch
1/2inch
Reference
4SR21 35BK&2GS SPKT
Quick Order Code
BB-701017
Product Description
The 08B1 21T Sprocket with 35mm Bore & Keyway is a precision-engineered power transmission component designed for 1/2 inch pitch chain drive systems. This sprocket features 21 teeth and comes pre-machined with a 35mm bore, integrated keyway, and dual grubscrews, ready for immediate installation without additional machining.
Key Features:
- 21 Teeth – Ideal for applications requiring moderate speed ratios and increased torque capacity in chain drive systems
- 1/2 Inch Pitch – Standard pitch compatible with 08B1 roller chain
- 35mm Pre-Machined Bore – Precision-engineered for secure shaft mounting on larger diameter shafts
- Integrated Keyway – Ensures positive drive engagement and prevents slippage
- Dual Grubscrews – Two grubscrews included for added security and easy adjustment on the shaft
- Ready to Install – No additional machining required, reducing installation time and costs
Ideal Applications:
This sprocket is perfect for use in:
- Conveyor systems
- Packaging machinery
- Agricultural equipment
- General industrial power transmission applications
- Heavy-duty chain drive systems requiring larger bore diameters
- Equipment requiring balanced speed and torque characteristics
Whether you need a replacement sprocket for existing equipment or are designing a new chain drive system, this sprocket delivers the reliability and precision required for demanding industrial applications. Our technical team is available to assist with specification selection for your specific drive requirements.
Reference: 4SR21 35BK&2GS SPKT
