Quick Summary
The bociloy 4-Pack 1/4" x 7 Bicycle Ball Bearing Retainers are bicycle repair parts for hub and crank bearing replacement. The pack includes 4 retainers, and the stated sizes are 25 mm outer diameter, 12 mm inner diameter, and 6 mm ball diameter.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | bociloy. Use this to match the exact product page. |
| Product type | Bicycle ball bearing retainer. This is a replacement part for bearing service. |
| Pack quantity | 4 pieces. Check that this matches the number of retainers you need for the repair. |
| Ball count | 1/4" x 7 balls. Confirm this bearing style matches the part being replaced. |
| Outer diameter | 25 mm. Compare against the space and bearing seat you are servicing. |
| Inner diameter | 12 mm. Compare this with the fit needed for the repair. |
| Ball diameter | 6 mm. Use this when matching the bearing retainer to the existing part. |
What to Compare Before Buying
- Size: Check the stated 25 mm outer diameter, 12 mm inner diameter, and 6 mm ball diameter against the part you are replacing.
- Pack quantity: This pack includes 4 retainers, so confirm that quantity fits your repair plan.
- Bearing style: The retainer is listed as 1/4" x 7 balls, which should match the bearing pattern you need.
- Repair location: The part is described for wheel hubs and crank bottom bracket repair, so confirm the location on your bike before buying.
What Else You May Need
For installation, you may need bearing grease and the basic tools required to remove the old part and fit the replacement retainer.
Before You Decide
Confirm the 1/4" x 7 ball pattern, the 25 mm outer diameter, the 12 mm inner diameter, and the 4-piece quantity before choosing an offer. Make sure the retainer matches the bearing location on the bike you are repairing.





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