Quick Summary
The X AUTOHAUX 4pcs 40mm x 20 ball bearing cages are bicycle crank bearings made for replacement use. The pack contains 4 pieces, and the bearings are described with 20 balls and a 40mm outer diameter with a 33.5mm inner diameter.
This is the kind of part where exact size matters. Check the crank bearing size against your bike before choosing an offer, especially if you are replacing a worn bearing cage on an ordinary bicycle, mountain bike, lowrider bike or stretch bicycle.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | X AUTOHAUX. Useful for identifying the exact part family. |
| Product type | Ball bearing cages for bicycle crank bearings. This is a replacement part, not a complete bicycle assembly. |
| Quantity | 4 pieces. Check whether you need a single replacement or a multi-piece pack. |
| Outer diameter | 40 mm. Match this to the space the bearing cage needs to fit. |
| Inner diameter | 33.5 mm. This is the main fit check for the bearing area. |
| Balls per cage | 20 balls. This is part of the bearing configuration. |
What to Compare Before Buying
- Size: The stated outer diameter is 40 mm and the inner diameter is 33.5 mm. Compare both measurements with the bike part being replaced.
- Pack quantity: This is a 4-piece pack, so confirm that quantity matches the job you are doing.
- Fit: The part is described for crank bearing replacement on bicycles. Check the bearing area and the exact dimensions before ordering.
- Bearing style: The cages are described with 20 balls. Match the bearing configuration if that matters for the replacement.
Compatibility, Size and Fit
This part is described for ordinary bicycles, mountain bikes, lowrider bikes and stretch bicycles. The key check is the 33.5 mm inner diameter, along with the 40 mm outer diameter, because the wrong size will not suit the bearing area.
Compare the measurements against the part already fitted to the bicycle rather than relying on appearance alone.
Before You Decide
Confirm the 40 mm outer diameter, 33.5 mm inner diameter and 4-piece pack before choosing an offer. If you are replacing a crank bearing, make sure the exact bike part matches these dimensions and the bearing style.
