Transmissions
Chain Sprockets
Bored & Keyed Sprockets
5/8inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701242
10B1 20T Sprocket Comes With 25mm Bore & Keyway with 2 Grubscrews (5SR20 25BK&2GS SPKT)
This 10B1 20-tooth sprocket is a precision-engineered power transmission component designed for reliable performance in industrial machinery and equipment. It features a 25mm bore with keyway and comes complete with 2 grubscrews for secure and straightforward shaft mounting.
Key Specifications:
- Tooth Count: 20 teeth for optimal speed and torque balance in mid-range applications
- Bore Size: 25mm precision-bored for accurate shaft fitting
- Pitch: 5/8 inch (standard for 10B1 chains)
- Keyway: Pre-cut keyway ensures positive drive transmission and prevents slippage
- Grubscrews: Includes 2 grubscrews for additional holding security and easy installation
- Ready to Install: No additional machining required
Applications:
This versatile sprocket offers an excellent balance between speed and torque transmission, making it suitable for a wide variety of industrial applications including:
- Conveyor systems
- Agricultural machinery
- Packaging equipment
- General industrial power transmission systems
- Drive systems requiring balanced speed and load capacity
- Mid-to-high speed transmission applications
Installation Benefits: The pre-machined bore, keyway, and included grubscrews enable quick and straightforward shaft mounting, minimizing downtime and installation complexity. Engineered to work seamlessly with 10B1 roller chains, this sprocket delivers consistent performance and durability.
Reference: 5SR20 25BK&2GS SPKT
Stocked in our UK warehouse for fast delivery and competitive pricing. For assistance in confirming this is the correct specification for your application, our technical team is available to provide guidance.

