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Chain Sprockets
Bored & Keyed Sprockets
1/2inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701078
08B1 27T Sprocket Comes With 28mm Bore & Keyway with 2 Grubscrews (4SR27 28BK&2GS)
The 08B1 27T Sprocket with 28mm Bore & Keyway is a precision-engineered power transmission component designed for reliable performance in industrial chain drive systems. This sprocket features a large 27-tooth configuration with a pre-machined 28mm bore with integrated keyway and dual grubscrews, providing secure and vibration-resistant shaft mounting without the need for additional machining.
Key Features:
- 27 Teeth: Large tooth count ideal for low-speed, high-torque applications requiring increased mechanical advantage
- 1/2" Pitch: Standard industrial pitch compatible with 08B1 chain systems
- 28mm Pre-Machined Bore: Ready-to-install bore eliminates the need for additional machining
- Integral Keyway: Ensures positive drive engagement and prevents shaft slippage
- Dual Grubscrews: Provides secure and reliable shaft mounting with redundant fastening for enhanced holding power and stability
Applications:
This versatile sprocket is ideal for use in:
- Conveyor systems and material handling equipment requiring reduced speed ratios
- Packaging machinery and automation equipment
- Agricultural equipment and farm machinery
- General industrial power transmission systems
- Custom chain drive assemblies requiring a 27-tooth configuration with larger shafts
- Applications requiring increased torque with compact design
Reference: 4SR27 28BK&2GS SPKT
Ready to install and requiring no additional machining, this bored and keyed sprocket delivers immediate functionality and reliability for your drive system requirements. 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. Our technical team is available to assist with application-specific recommendations.

