Wheel-hub-bearing-unit-for-GM-USA-512151

Fit Vehicles/Application:GM-USA-Buick Century, regal;Chevrolet Lumina, Monte carlo; Oldsmobile Cutlass supreme

AOZ NO:L-231

OE Numbers:512151

Cross Reference Numbers:

Certification: IATF 16949:2016

Quality Guarantee: 2 years or 60000 kilometers

FAQs

Q1: Why does my hub bearing make a whining noise that changes when I apply the brakes?

A: Braking applies axial load to the bearing, which shifts the contact pattern between the rollers and raceway. If wear is uneven, this load change alters the vibration frequency and changes the pitch of the whine.

Q2: Why does my new hub have a small metal ring pressed into the center bore?

A: This is the ABS encoder ring, which contains magnetic poles that generate the wheel speed signal. It is precision-pressed into the bearing assembly and must not be damaged or contaminated with metal particles.

Q3: Can a hub bearing failure cause my lane departure warning system to malfunction?

A: Yes. Lane departure systems rely on accurate vehicle speed and wheel rotation data. Erratic signals from a damaged encoder ring can cause false warnings or disable the system entirely.

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