08/22/2026
CAN LOW RV TIRE PRESSURE MAKE YOUR WHEEL BEARINGS RUN HOTTER?
Yes — low tire pressure can contribute to higher temperatures around the wheel and hub, especially on a heavily loaded RV.
When an RV tire is underinflated, the sidewall flexes more, creating additional rolling resistance and heat. It can also affect how the load is carried through the tire, wheel, hub and bearing assembly.
But here’s the important part: if ONE hub is noticeably hotter than the others, don’t automatically blame tire pressure.
A hotter-than-normal hub can also be caused by:
* Bearings adjusted too tight
* Low, contaminated or failing bearing grease
* Worn or damaged bearings or races
* A dragging electric brake
* Improper brake adjustment
* A leaking grease seal
* Uneven loading or an overloaded axle/tire
* Low tire pressure
A good diagnostic clue: If all your tires are low and everything is running a little warmer, tire pressure may be contributing. If one wheel is substantially hotter than the other three, we would be more concerned about something happening at that individual wheel — particularly the brakes or wheel bearings.
Remember: tire temperature and wheel-bearing temperature are NOT the same thing. An underinflated tire can become extremely hot even when the wheel bearings are functioning properly.
Check your COLD tire pressures before every travel day.
Check your hubs when stopping for fuel or rest.
Compare temperatures from wheel to wheel.
Investigate anything that’s noticeably hotter than the others.
A few minutes checking your tires and hubs can help catch a developing problem before it becomes a roadside repair.
If this helped you, we’d appreciate you joining us on our YouTube channel for more RV repair tips, maintenance, and upgrades!
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