Glossary
Wheel end
The complete assembly at each wheel position including hub, bearings, seals, spindle, and mounting hardware. Wheel-end problems such as worn bearings can cause cupping wear that looks like a tire issue.
When investigating irregular wear, check wheel-end condition alongside tire pressure and alignment — the tire wear pattern is often a symptom of a mechanical cause.
Real-World Use
A technician diagnosing cupping wear on a steer tire inspects the wheel-end bearings and finds play consistent with a worn bearing contributing to the uneven contact pattern.
What to Pair It With
Read this term with the full tire sidewall, vehicle rating information, manufacturer documentation, and the actual condition of the tire.
This site is for general information only. It does not replace professional tire service, DOT compliance advice, tire manufacturer instructions, vehicle manufacturer recommendations, or fleet policy.