# Car wheel temperature

• Automotive
Considering how hot brake rotors get under hard street and race track braking, what is the typical heat range experienced buy the actual wheel in contact with the rotor and hub?

## Answers and Replies

are you asking how hot the rim hub gets due to heat transfer? its a big heatsink, but under track conditions the rim hub can get fairly hot.

are you asking how hot the rim hub gets due to heat transfer? its a big heatsink, but under track conditions the rim hub can get fairly hot.
Yes , exactly. Due to hear transfer from rotor, and hub assembly, what temperature range does the face of the wheel encounter?

hard to say exactly what temp it will get to, all depends on aerodynamics, mass and shape of the rim, speeds at which wheel is moving, frequency of heat output, amount of heat generated, etc etc. if i drive w/o ever hitting the brakes, rim will be at ambient. but if i go 40-100mph and 100-40mph every 60 sec then the rim will get very hot.

i guess all i can say is, rim will be lower in temp then rotor hub. if you are looking for equations then it will be a heatsink problem with complex functions because you'll need to model the heatsink (rim) properly, which has many variables.

Ranger Mike