Wheel-hub-bearing-unit-for-GM-USA-515053

Fit Vehicles/Application:GM-USA-CADILLAC,CHEVROLET,GMC

AOZ NO:LD100

OE Numbers:515053

Cross Reference Numbers:

Certification: IATF 16949:2016

Quality Guarantee: 2 years or 60000 kilometers

FAQs

Q1: What causes a hub to make a high-pitched whining sound that only appears at certain speeds?

A: Specific bearing damage creates resonance at particular rotational frequencies. The whine appears when the wheel reaches the speed that matches the damaged area's vibration frequency and disappears at other speeds.

Q2: Why does my new hub have a small raised dot on the mounting flange?

A: This is a manufacturing datum mark used during quality inspection to verify runout and dimensional accuracy. It has no effect on installation or performance.

Q3: Can a hub bearing failure cause my vehicle to make a growling noise that gets louder when carrying a heavy load?

A: Yes. Additional weight increases the load on the bearing, amplifying noise from existing damage. The added stress accelerates wear and makes the problem worse more quickly.

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