28B21 Sprocket With Stock Bore
- Custom bore sizes are available. Contact us if you need a specific bore size or machining requirement.
- Images are for reference only. Actual product appearance may vary based on size, bore, keyway, hub style, or manufacturer.
28B21 Sprocket Dimensions

- Sprocket Size: 28B21
- Tooth Count: 21
- Pitch Diameter: 298.24mm
- Stock Bore: 40mm
- Maximum Recommended Bore: 108mm
- Hub Dia Diameter (H): 160mm
- Length Thru Bore (L): 64mm
- Sprocket Weight: 18.19 kG
- Sprocket Size: 28B21
- Tooth Count: 21
- Pitch Diameter: 298.24mm
- Stock Bore: 40mm
- Maximum Recommended Bore: 108mm
- Hub Dia Diameter (H): 160mm
- Length Thru Bore (L): 64mm
- Sprocket Weight: 18.19 kG