Trailer brake temperatures - variance?

[anmut]

Just stopped on our trip north, have a 50f difference in temp on the rotors between driver and passenger side brakes. 170 to 150. Just got off highway, anything to obsess about over the weekend or should I have a beer and relax?

 

[Cambo]

are you measuring the wheel hub ? Thats the area that is important

Is the hot side facing the sun ?

Did you apply the brakes a lot when getting off the highway?

The rotor could be hotter due to how the fluid is applied to the brake calipers its probably only equal with a perfect bleed I would bet the hot side is on the feed line from the brake master cylinder.

Have a beer and relax

 

[FSH 210 Sport]

Just stopped on our trip north, have a 50f difference in temp on the rotors between driver and passenger side brakes. 170 to 150. Just got off highway, anything to obsess about over the weekend or should I have a beer and relax?

NO, nothing to obsess about. A 20° difference is small.

I assume what you said there was drivers side was 170, passenger side 150, correct?

Ambient air temp and as @Cambo suggested being in the sun affects temperatures, as well as how much you had been using the brakes and how quickly you take the temperatures after you stop, EG had you been cruising on the highway and got off at a rest stop and took the temps compared to driving on the highway and navigating to a gas station before taking the temperatures.

With that in mind… What was the air temp, had that hub been in the sun, braking to temp read time. Also what were the non braking hubs? I usually see higher temps on the passenger side than the drivers side.

Enjoy your trip up north.

 

[anmut]

Just stopped on our trip north, have a 50f difference in temp on the rotors between driver and passenger side brakes. 170 to 150. Just got off highway, anything to obsess about over the weekend or should I have a beer and relax?

Got to cabin, 126 to 110f. Hotter side was sun side. Good call on the brake lines, I’ll check that. Appreciate all the comments.

 

[RiverRat]

Mmmmm beer….

 

[FSH 210 Sport]

Got to cabin, 126 to 110f. Hotter side was sun side. Good call on the brake lines, I’ll check that. Appreciate all the comments.

From 2023 when I had rebalanced the brake actuator

Post in thread 'Changing out the surge brake actuator.'

Aug 27, 2023

Did a longer run today on the interstate at 65 mph, after about 50 miles there was a rest area and I slowed down very gradually so I wouldn’t build up heat in the braking hubs. Checked all four hubs with a heat gun, here’s what I observed. Hub temps after 65 mph on the highway for 50 miles was 108 front axle / brake axle 118° passengers side and in the sun, 88 front axle / brake axle 90° drivers side, outside air temp was 90°.

This was a good opportunity to check the hub temperature with functioning brakes without being in the hills.

• FSH 210 Sport

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