Quick Summary
This 4-piece bicycle ball bearing retainer set is made for bike crank and bottom bracket replacement work. The listed ball size is 8 mm (5/16 inch), and each retainer has 7 balls.
The package includes 4 pieces, so it is set up for replacement planning and keeping spares on hand. A size check is important before buying because the retainer is described with specific inside and outside dimensions.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Bicycle ball bearing retainer for crank and bottom bracket replacement. |
| Pack quantity | 4 pieces, which gives you a replacement set plus extra parts. |
| Ball size | 8 mm (5/16 inch) ball size, which must match the bicycle part being replaced. |
| Balls per retainer | 7 balls per retainer. |
| Outer diameter | 1.5 inch / 38 mm. |
| Inner diameter | 0.94 inch / 24 mm. |
| Material | Steel. |
What to Compare Before Buying
- Size: Compare the 38 mm outer diameter, 24 mm inner diameter, and 8 mm ball size with your bicycle’s existing bearing retainer.
- Pack quantity: This set includes 4 pieces, so check whether you need a single replacement or multiple parts.
- Application: It is described for bicycle crank and bottom bracket replacement, so confirm that matches the part you are replacing.
- Ball count: Each retainer has 7 balls, which should match the configuration you need.
Compatibility, Size and Fit
Use this retainer only when the bearing size and dimensions match the bicycle part being replaced. The set is described for bicycle cranks and bottom bracket use, and it is also listed for bicycle axle and wheel frame bearing replacement.
Check the selected part against your bike before ordering, especially if you are replacing a crank bearing or bottom bracket bearing with a specific retainer size.
Before You Decide
Confirm the 38 mm outer diameter, 24 mm inner diameter, and 8 mm ball size before choosing this set. Also check whether you need all 4 pieces or only one replacement part. If the bearing size does not match your bicycle, choose a different retainer size.
Regular Replacement Planning
For a straightforward repair, it can help to compare the worn retainer with the new set before starting the job. Having the extra pieces in the pack gives you a spare for later replacement if the same size is used again.
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