Brake temperature (O/T)
In October 2002 I posted a question about the occuring and the allowable temperature in drum brakes. I received a lot of useful replies from the groups. Now I would like to inform you about my proceedings since then.
I modified the brake of one wheel of a trailer by mounting a number of temperature sensors to it and
then performed driving tests with it to measure temperature profiles in different driving situations. After analysing these measurements I can give you the following conclusions:
1.. Even during a short brake action the temperature of the surface of the brake material shoots up to about 300 deggrees Centigrade within seconds, but after releasing the brake it goes down again very quickly.
2.. During prolonged braking the brake shoe as a whole heats up to about 200 degrees slowly (this takes minutes). In this situation a brake action will give a fast rise of the brake material surface to about 500 degrees, which gets down again quickly after the release of the brake.
3.. There is a distinct difference between the heating of the leading shoe and of the trailing shoe (as I expected, but the effect was larger than anticipated).
If anyone of you is interested in more details, you can contact me off list
Greetings and best wishes from
Cor Beijersbergen van Henegouwen
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