figured you guys would know if anyone would.I have one of those red dot temperature gunswhen traveling, you pull in for a rest break, pull out your red dot temperature gun and check the trailer hubs.question: what is an acceptable heat range for the hubs??????I am assuming they all should be fairly close together in temp range.thanks for your reply. 27 ft tow behind lite trailer. standard unit, 15" tires, 2 years old. hubs have those pop off covers with grease buddies, where grease zerk in right at the end of the hub, I normally give them 3 shots of grease, two or three times per season.??????

I did find this info on line:maybe I can use it as a guide:________________________I also use a IR gun and really like it better than burning my hand. I have found that on a really hot day, as stated above, the temp. will get to 135 deg. (The highest I have recorded.) Normal around 90/95. You want both sides to be close in temp. and there will be some variation between front and back hubs. but not more than say, 5-10 deg. One thing I noticed, when fooling around with the gun, is that the hubs, wheels and even the tires were very close to the same temp.

maxwell11 wrote:I have found that on a really hot day, as stated above, the temp. will get to 135 deg. (The highest I have recorded.) Normal around 90/95. You want both sides to be close in temp. and there will be some variation between front and back hubs. but not more than say, 5-10 deg.I wouldn't use that as a guide. Ambient temp here in FL in the middle of the summer will be 95. I know it sounds simple, but I've always used the "touch" test like people have done since the beginning of trailering. Maybe its just me, but I think there's an inner sense within you that let's you know when something is too hot to the touch.

Skip the temp gun and use your finger!You will find out quickly what the right temp is. And all of the bearings won't go bad at once so actual temp is irrelevant. It relative temp to the other hubs.

I would just look for consistency. When one hub is a lot hotter than the others you know there's an issue.

I too use the good Ole touch test. Never had them too hot to touch. As stated check for consistency.

Trailer hub temp question | Good Sam Community

19 Replies

bovellois
Explorer
Apr 22, 2015
Feel by touch is the best. Make sure to check at the end of the hub, as far as possible from the brake drums, as their heat will transfer and give you a false "reading".
Ozlander
Explorer
Apr 22, 2015
maxwell11 wrote:

hubs have those pop off covers with grease buddies, where grease zerk in right at the end of the hub, I normally give them 3 shots of grease, two or three times per season.??????

I think that is too much grease. Where's the extra grease going to go? Going to mess up the brakes.
Maybe 3 shots a year. I don't grease mine but maybe every five years.
How often do you grease the hubs on your TV.
jmtandem
Explorer II
Apr 22, 2015
figured you guys would know if anyone would.

I have one of those red dot temperature guns

when traveling, you pull in for a rest break, pull out your red dot temperature gun and check the trailer hubs.

question: what is an acceptable heat range for the hubs??????

I am assuming they all should be fairly close together in temp range.

thanks for your reply.

27 ft tow behind lite trailer. standard unit, 15" tires, 2 years old.

I use the IR temp probe all the time. Using the brakes will add temps so be careful when you take the temps. For most non braking temps I usually see 115 or so with a variation of plus or minus ten or fifteen degrees between the hubs. Obviously braking a lot and then taking the temps will raise those values. Long downhill mountain grades with lots of braking can increase temps very quickly.
K_Charles
Explorer
Apr 22, 2015
With good maintenance why would you check temp. Do you check the temp of the hubs on your truck? How often do you check the hub temp on your car. I do a walk around now and then that's it.
Ryan_Elli1
Explorer
Apr 22, 2015
I too use the good Ole touch test. Never had them too hot to touch. As stated check for consistency.
ScottG
Nomad
Apr 22, 2015
I would just look for consistency. When one hub is a lot hotter than the others you know there's an issue.
Grit_dog
Navigator
Apr 22, 2015
Skip the temp gun and use your finger!
You will find out quickly what the right temp is. And all of the bearings won't go bad at once so actual temp is irrelevant. It relative temp to the other hubs.
majorgator
Explorer
Apr 22, 2015
maxwell11 wrote:
I have found that on a really hot day, as stated above, the temp. will get to 135 deg. (The highest I have recorded.) Normal around 90/95. You want both sides to be close in temp. and there will be some variation between front and back hubs. but not more than say, 5-10 deg.

I wouldn't use that as a guide. Ambient temp here in FL in the middle of the summer will be 95. I know it sounds simple, but I've always used the "touch" test like people have done since the beginning of trailering. Maybe its just me, but I think there's an inner sense within you that let's you know when something is too hot to the touch.
maxwell11
Explorer
Apr 22, 2015
I did find this info on line:

maybe I can use it as a guide:
________________________
I also use a IR gun and really like it better than burning my hand.

I have found that on a really hot day, as stated above, the temp. will get to 135 deg. (The highest I have recorded.) Normal around 90/95. You want both sides to be close in temp. and there will be some variation between front and back hubs. but not more than say, 5-10 deg.

One thing I noticed, when fooling around with the gun, is that the hubs, wheels and even the tires were very close to the same temp.

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Trailer hub temp question

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