wheel bearing
Axle rotation support
A wheel bearing is a set of steel balls or rollers held in a metal ring that allows a wheel to spin freely on its axle while supporting the vehicle's weight.
When wheel bearings wear out, they typically produce a humming or grinding noise that increases with speed: The mechanic said my wheel bearing needs replacing.
- hubCentral connection point
- axleShaft for wheel rotation
- greaseThick oily lubricant
- spinRapid rotation around axis
- frictionResistance between touching surfaces
rotation · sealed · race · ball · roller · press · worn · noise · rumble · road noise · grinding · suspension · spindle · pack · assembly · replacement · smooth · steel
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