Bearing Temps Dexter Nev R Lube on 2002 HR Presidential

Glad you were able figure it out.

Lizzie

good report from you to help others.

chevman

Found out some disturbing news. I replaced the Wheels due to inadvertently installing -.08mm offset rims to replace the rusted OEM steel rims. Never knew about the "Zero Offset" warning until buying replacement bearings.
The one wheel that ran hotter; Hub is enlarged. Upon further research and discussions with Dexter, I found that not only the bearings are unevenly loaded, but so are the hubs. Found this info too when I downloaded a recall notice to Titanium owners; Same problem. Manufacturer installed -.10mm wheels. Early failure. Dexter supplied discounted new loaded hubs if rims were replaced or discount replacement axles that would work with the rims.
Anyway, replacing the one hub with a loaded hub and checking the others. So far no axial play in those.

Thanks for the replies. I do think that hub had brakes a little tighter. It was little tighter coming off and reinstalling.
Going to check brake adjustments before next trip.

112° isn't hot, it's barely warm. Nothing to be concerned about.

I'm surprised the other three all read the same. Is the surface you are reading chromed by any chance? That will throw a cheap IR temperature gun way off.

For giggles and grins take the label off an empty soup can. Divide it into four sections and paint one section flat black, one section gloss silver, clear coat one and leave the last bare. Fill the can with boiling water (212°) and allow about a minute for the can to come to temperature. Then use your IR gun to shoot the can temperatures in the different sections. You may be surprised how much different the same temperature will indicate as you go around the can.

Cheap IR guns can't be adjusted for surface emissivity and there's no easy correction factor you can apply. Best you can do is look for differences...

(short answer) Save yourself some trouble and just back off brake two or 3 clicks. See if that solves problem. If not dig deeper.

(long answer) I had same problem, about 10 degrees difference. I wasn't sure if bearing or brake problem but I was keeping a good eye on them. Same tires, same air pressure, same miles on same brand of tire etc.

One day when driving along there was an rest area coming up and nobody behind me for a long ways. Sort of up hill to the off ramp to rest area. I stopped without using any trailer brakes. Just exhaust brake till it cut out about 25 mph then coasted and at very end has to use little ER brake on TV only. Then I took temps. Obviously it has been long time since trailer brakes heated up anything. Temps should all be same was my reasoning.

The one that was running hot was the same as the other three. That told me it was a braking issue. Couple days later was at good spot to back off two clicks on star brake adjustment thing and now runs same temp as others.

I did ask the same question on here and got answers basically got two type of answers.

1) Don't worry about 10 degrees.

2)And don't worry about it because if it is the brake, it will wear down in 2 or 3 thousand miles and will solve the problem itself.

TNRIVERSIDE wrote:
Every time I used my inferred thermometer I got different readings. Now I use my hand. Works much better. 95 to 112 is close enough.

My experience also.

Every time I used my inferred thermometer I got different readings. Now I use my hand. Works much better. 95 to 112 is close enough.

With 3 being 95, seems odd that 4th would be more than 5 degrees different. The sun side can be warmer sometimes, but then 2 would have been 112.

It is possible one brake is dragging a little causing a higher reading on one hub.

A 112 temp is not high, but being different, I'd check it often for a while. Sometimes we over think things, causing unnecessary worry, when you've had no problem, the last 20,000 miles.

Jerry