20BB13 Idler Sprocket With 25mm 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.
20BB13 Idler Sprocket Dimensions

- Sprocket Size: 20BB13
- Tooth Count: 13
- Chain Size: 20B-1
- Pitch: 31.75mm
- Dimension (OD): 132.7mm
- Dimension (N): 148.0mm
- Dimension (T): 18.5mm
- Dimension (ID): 25mm
- Dimension (BD): 52mm
- Dimension (H): 25.4mm
- Dimension (L): 15mm
- Sprocket Weight: 0.73 kG
- Sprocket Size: 20BB13
- Tooth Count: 13
- Chain Size: 20B-1
- Pitch: 31.75mm
- Dimension (OD): 132.7mm
- Dimension (N): 148.0mm
- Dimension (T): 18.5mm
- Dimension (ID): 25mm
- Dimension (BD): 52mm
- Dimension (H): 25.4mm
- Dimension (L): 15mm
- Sprocket Weight: 0.73 kG