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Chain Sprockets
Bored & Keyed Sprockets
1/2inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701076
08B1 27T Sprocket Comes With 32mm Bore & Keyway with 2 Grubscrews (4SR27 32BK&2GS)
The 08B1 27T Sprocket with 32mm Bore & Keyway and 2 Grubscrews is a precision-engineered power transmission component designed for high-performance chain drive applications. Featuring the highest tooth count in our standard range, this 1/2 inch pitch sprocket combines a robust 27-tooth design with a pre-machined 32mm bore and integral keyway, making it an excellent choice for systems requiring maximum speed delivery with consistent power transmission in demanding industrial environments.
Key Features:
- 27 Teeth: Maximum tooth count optimised for highest speed ratios while maintaining reliable torque transmission across extended operating ranges
- 32mm Pre-Machined Bore: Ready-to-install bore eliminates additional machining requirements and accommodates large diameter shafts
- Integral Keyway: Ensures positive drive engagement and prevents shaft slippage during high-speed operation
- Dual Grubscrews: Provides secure and reliable shaft mounting with redundant fastening for enhanced security and vibration resistance
- 1/2 Inch (08B1) Pitch: Compatible with standard 1/2 inch pitch roller chains
- Precision-engineered for consistent, reliable performance under demanding conditions
Ideal Applications:
This sprocket is well-suited for use in:
- High-speed conveyor systems and rapid material handling equipment
- Advanced packaging machinery requiring maximum speed ratios
- Agricultural equipment and large farm machinery with substantial shaft requirements
- Industrial power transmission systems requiring optimised speed delivery
- Heavy-duty drive systems with large bore diameter shafts
- High-performance equipment requiring efficient power transfer at elevated speeds
- OEM applications demanding reliable high-speed chain drive solutions
Reference: 4SR27 32BK&2GS SPKT
As part of our extensive range of over 165 bored and keyed sprockets, this component delivers the precision and reliability needed for demanding industrial applications. Whether you need a replacement sprocket for existing equipment or are designing a new high-speed chain drive system, our technical team is available to assist with application-specific recommendations and specification selection.

