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Chain Sprockets
Bored & Keyed Sprockets
1/2inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701021
08B1 21T Sprocket Comes With 28mm Bore & Keyway with 2 Grubscrews (4SR21 28BK&2GS)
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Product Specification
Bore
28mm
Number of Teeth
21
Pitch
1/2inch
Reference
4SR21 28BK&2GS SPKT
Quick Order Code
BB-701021
Product Description
The 08B1 21T Sprocket with 28mm Bore & Keyway is a precision-engineered power transmission component designed for reliable chain drive performance in industrial applications. This mid-range sprocket features pre-machined specifications that eliminate the need for additional customization, making it an ideal solution for applications requiring moderate speed and increased torque characteristics.
Product Specifications:
- Tooth Count: 21 teeth
- Pitch: 1/2" (08B1 standard)
- Bore Diameter: 28mm pre-machined
- Keyway: Included for secure shaft alignment
- Grubscrews: 2 included for positive shaft locking
- Reference: 4SR21 28BK&2GS SPKT
Key Features:
- Pre-machined bore with keyway eliminates costly secondary machining
- Dual grubscrews provide secure and vibration-resistant shaft mounting
- 21-tooth configuration delivers balanced torque and speed characteristics
- Ready-to-install design reduces assembly time and labor costs
- Precision-engineered for optimal chain engagement and extended service life
Applications:
This sprocket is ideal for use in:
- Conveyor systems
- Packaging machinery
- Agricultural equipment
- General industrial power transmission systems
- Medium-duty chain drive applications
Whether you require a replacement sprocket for an existing system or are designing a new chain drive application, this 21-tooth sprocket with its generous 28mm bore offers the performance and reliability needed for efficient power transmission in demanding industrial environments.
