Transmissions
Chain Sprockets
Bored & Keyed Sprockets
5/8inch Pitch Bored & Keyed Sprockets
Quick Code: BB-701255
10B1 21T Sprocket Comes With 24mm Bore & Keyway with 2 Grubscrews (5SR21 24BK&2GS SPKT)
This 10B1 21-tooth sprocket is a precision-engineered power transmission component designed for reliable performance in industrial machinery and equipment. It features a 24mm bore with keyway and comes complete with 2 grubscrews for secure and straightforward shaft mounting.
Key Specifications:
- Tooth Count: 21 teeth for excellent speed and torque balance in mid-range applications
- Bore Size: 24mm 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 vibration resistance
- 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 and equipment
- Packaging and filling equipment
- General industrial power transmission systems
- Drive systems requiring balanced speed and load capacity
- Mid-range 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: 5SR21 24BK&2GS SPKT
Stocked in our UK warehouse for fast delivery and competitive pricing. As part of our extensive range of over 167 10B1 sprocket configurations, this component ensures you can find the perfect specification for your application. For assistance in confirming this is the correct specification for your requirements, our technical team is available to provide guidance.

