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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Wheel Bearings

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Huntindog

Phoenix AZ

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Joined: 04/08/2002

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Posted: 08/22/22 08:06pm Link  |  Quote  |  Print  |  Notify Moderator

Bird Freak wrote:

BarneyS wrote:

Bird Freak wrote:

I don't get all the concern about repacking bearings. OP has 800 miles since serviced. How often do any of you repack the front bearings on your car or truck?
Its the same bearing set up.

Not the same ball game! The front bearings on a car or truck do not see any of the huge side loadings that double axle trailers put on their bearings when they turn or back into a campsite. If the trailer wheels turned like a cars, then the side loadings would not be there and the recommended service interval would likely be much longer than it is now.
Really it is about the same. On our class 8 trucks and trailers we would check and service bearings at about 100K miles. True the bearings are bigger but so is the load. I'm not a rookie mechanic as you can tell from my profile and I do believe some folks take the bearing service a little to far.


Barney...You need to take a ride with me in my IROCZ, and then tell me the front wheel bearings do not see huge side forces. Our trailer tires have very little grip compared to the high performance tires on a performance car. And grip on the road surface is the limiting factor on the force the bearings will see.


Huntindog
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Huntindog

Phoenix AZ

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Posted: 08/22/22 08:11pm Link  |  Quote  |  Print  |  Notify Moderator

I will be going to oil bath hubs at the next bearing service.

BarneyS

S.E. Lower Michigan

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Joined: 10/16/2000

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Posted: 08/24/22 06:48am Link  |  Quote  |  Print  |  Notify Moderator

Heh Heh, you guys with the class 8 trucks and IROCZ's must surely understand that we are talking about normal people that drive regular cars and trucks - right? I agree that the front axle bearing loads could be higher in those vehicles but that is not what the discussion is about. Come on man, be realistic![emoticon]
Barney


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valhalla360

No paticular place.

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Posted: 08/24/22 08:03am Link  |  Quote  |  Print  |  Notify Moderator

BarneyS wrote:

Bird Freak wrote:

I don't get all the concern about repacking bearings. OP has 800 miles since serviced. How often do any of you repack the front bearings on your car or truck?
Its the same bearing set up.

Not the same ball game! The front bearings on a car or truck do not see any of the huge side loadings that double axle trailers put on their bearings when they turn or back into a campsite. If the trailer wheels turned like a cars, then the side loadings would not be there and the recommended service interval would likely be much longer than it is now.


I don't know about you but I don't corner nearly as hard with the trailer connected.

Backing into a site, it's maybe 50ft of low speed rolling. I doubt it's going to build up much heat and the forces are likely a lot lower than hard cornering in a car. I also typically pull forward a few feet to put a board under the low side, so any residual side loading gets relieved.


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Huntindog

Phoenix AZ

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Posted: 08/24/22 11:31am Link  |  Quote  |  Print  |  Notify Moderator

BarneyS wrote:

Heh Heh, you guys with the class 8 trucks and IROCZ's must surely understand that we are talking about normal people that drive regular cars and trucks - right? I agree that the front axle bearing loads could be higher in those vehicles but that is not what the discussion is about. Come on man, be realistic![emoticon]
Barney
The point is they ALL use tapered oppossed bearings. In the case of the class 8. larger ones and in my IROCZ smaller ones that typical TTs. There are no extreme forces that are unique to TTs. In fact TT bearings actually live a pretty easy life.

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