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Bicycle Ball Bearing Retainers, 8mm x 7 Balls, 4-Pack

$6.79 (Price correct as of 11/12/2026 11:34 PST · Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

This bicycle ball bearing retainer set uses 8 mm (5/16 inch) balls, 7 balls per retainer, and comes as a 4-pack. Check the size, ball count, and quantity against the bearing you are replacing before choosing an offer.

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SKU: B0HC6TN8CF Category:

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Quick Summary

The Bicycle Ball Bearings Retainer is a bike ball bearing set with 8 mm (5/16 inch) balls and 7 balls per retainer. It is presented as a pack of 4 retainers, so the exact quantity is an important check before you choose an offer.

Key Details

Detail Product information and buyer relevance
Product type Bicycle ball bearing retainer for bike bearing replacement.
Ball size 8 mm (5/16 inch), which is the main size to compare against your application.
Balls per retainer 7 balls per retainer, which affects fit and replacement matching.
Pack quantity 4 retainers, so confirm you need this quantity before ordering.

What to Compare Before Buying

  • Ball size: Match the 8 mm (5/16 inch) size to the bearing application you plan to replace.
  • Balls per retainer: This version uses 7 balls per retainer, so compare that count with the part you are replacing.
  • Pack quantity: The set includes 4 retainers, which matters if you only need one replacement piece.

Compatibility, Size and Fit

The stated size details are the main buying check for this item. Confirm the 8 mm (5/16 inch) ball size and the 7-ball retainer count against the part you are replacing before choosing an offer. The opening measurements in the description can help you compare fit, but the most important match is the exact bearing size and configuration for your application.

Before You Decide

Confirm the 8 mm (5/16 inch) size, the 7-ball retainer layout, and the 4-pack quantity before choosing an offer. If you need a different bearing size or a single retainer instead of a 4-pack, compare another option first.

Additional Fit Check

Ball diameter and count are not the only fit considerations. Compare the retainer’s overall form and dimensions with the part being replaced or the exact replacement specification for the intended bearing assembly.

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