Transmissions
Chain Sprockets
Bored & Keyed Sprockets
5/8inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701226
10B1 20T Sprocket Comes With 19mm Bore & Keyway with 2 Grubscrews (5SR20 19BK&2GS SPKT)
This 10B1 20-Tooth Sprocket is a precision-engineered power transmission component designed for reliable performance in industrial chain drive systems. Pre-machined with a 19mm bore and integral keyway, this sprocket ensures secure, vibration-free shaft mounting with included 2 grubscrews for added stability.
Key Specifications:
- Pitch: 5/8 inch (10B1 standard)
- Tooth Count: 20 teeth
- Bore Diameter: 19mm
- Keyway: Pre-cut for easy installation
- Mounting Hardware: 2 grubscrews included
- Reference: 5SR20 19BK&2GS SPKT
Key Features:
- Pre-machined precision bore and keyway for perfect fit
- Compatible with 10B1 roller chains
- Includes 2 grubscrews for secure shaft mounting
- High-quality construction for durability and reliability
- Ready to install – precision machining eliminates additional setup work
Ideal Applications:
This 20-tooth sprocket is perfect for applications requiring higher speed ratios with good torque characteristics, including:
- Conveyor systems and material handling equipment
- Agricultural machinery and equipment
- Packaging and automation systems
- General industrial power transmission applications
- Machinery requiring moderate speed reduction ratios
Compatible with all standard 10B1 roller chains, this sprocket combines ease of installation with dependable performance. The precision bore and keyway design eliminate the need for additional machining, reducing downtime and installation costs.
Stocked in our UK warehouse for fast delivery. Contact our technical team if you need assistance selecting the correct sprocket for your application.

