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Chain Sprockets
Bored & Keyed Sprockets
1/2inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701002
08B1 20T Sprocket Comes With 38mm Bore & Keyway with 2 Grubscrews (4SR20 38BK&2GS)
The 08B1 20T Sprocket with 38mm Bore & Keyway is a precision-engineered power transmission component designed for heavy-duty industrial applications requiring larger shaft compatibility and reliable medium-speed drive configurations. This bored and keyed sprocket features a 20-tooth design with a 1/2 inch pitch, making it an excellent choice for balanced speed and torque delivery in demanding industrial drive systems with substantial bore diameter requirements.
Key Features:
- 20 Teeth: Optimal tooth count for medium-speed applications offering balanced performance and smooth, efficient power transmission
- 38mm Pre-Machined Bore: Ready-to-install bore eliminates the need for additional machining and accommodates larger diameter shafts for increased rigidity and load capacity
- Integral Keyway: Ensures positive drive engagement and prevents shaft slippage during operation
- Dual Grubscrews: Provides secure and reliable shaft mounting with redundant fastening for vibration resistance
- 1/2 Inch (08B1) Pitch: Compatible with standard 1/2 inch pitch roller chains
Applications:
This sprocket is ideal for use in:
- Heavy-duty conveyor systems requiring adjustable speed ratios
- Packaging machinery and large-scale automation equipment
- Agricultural equipment and farm machinery with demanding power requirements
- General industrial power transmission systems requiring robust performance
- Heavy-duty drive systems requiring larger bore diameters for maximum shaft rigidity and load handling
- Drive systems requiring compact design with efficient power transfer in high-torque applications
Reference: 4SR20 38BK&2GS SPKT
As part of our extensive range of over 165 bored and keyed sprockets, this component delivers the precision and reliability needed for the most demanding industrial applications. Our technical team is available to assist with application-specific recommendations and to help you select the correct specification for your drive system.

