Quick Summary
This bociloy set contains four bicycle ball bearing retainers, each listed with 16 balls measuring 4 mm in diameter. The listing names bicycle hubs and crank bottom brackets as repair applications. Check the retainer dimensions and bearing arrangement against the part being replaced before choosing this set.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Part type | Bicycle ball bearing retainers for the listed hub and crank bottom bracket applications. |
| Quantity | 4 retainers; check whether this quantity suits the repair. |
| Ball configuration | 16 balls per retainer, each listed as 4 mm in diameter. |
| Retainer dimensions | 37 mm outer diameter and 29 mm inner diameter. Compare both measurements with the existing part. |
What to Compare Before Buying
- Retainer size: Compare the 37 mm outer diameter and 29 mm inner diameter with the part being replaced.
- Bearing layout: Check that the existing retainer uses 16 balls of 4 mm diameter and has a compatible cage arrangement.
- Repair location: The listing names hubs and crank bottom brackets. Confirm that the specific component uses this retainer style and size.
Compatibility, Size and Fit
The listing describes these retainers for mountain, road, hybrid, and children’s bicycles, but those broad categories do not establish fit for a specific bicycle or component. Compare the dimensions, ball count, and cage arrangement with the bearing assembly being serviced. A similar-looking retainer may differ in size or construction.
What Is Included
The stated package quantity is four retainers. No additional repair parts or tools are specified.
Before You Decide
Check the existing retainer’s dimensions, 16-ball layout, and cage arrangement, and confirm that the specific component uses this type of retainer.
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