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Old 07-28-2023, 02:13 PM   #1
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Bearings

I have a 2012 travel trail and we travel 8 months out of the year.
How often should you grease the wheel bearing. Some people tell me 5000 miles some say 10,000 to 15,000 thousand miles.what do you think.
Jtjt
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Old 07-28-2023, 02:22 PM   #2
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Originally Posted by pmaphsif View Post
I have a 2012 travel trail and we travel 8 months out of the year.
How often should you grease the wheel bearing. Some people tell me 5000 miles some say 10,000 to 15,000 thousand miles.what do you think.
Jtjt
Not sure what brand your axles are....check the tube for a tag, but both my Dexter and Lippert axles are 12 months or 12K miles, whichever first. If you are travelling 8 months of the year, I'd definitely do it yearly. But that's me....there are some that pump grease in the zerk (if it has one) once every couple years and call it good...lol

https://www.dexteraxle.com/LDCSM
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Old 07-28-2023, 04:44 PM   #3
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I’m one who pumps grease in the Zirc every year. Of course, I check the brakes. Many prefer hand packing bearings. Better. But how much better? Only danger to using Zirc is pumping in too much grease such that it oozes out the back seal onto the brake pads. Easy enough to check. Even more important is to routinely check the 7-pin connection for corrosion. Lost my brakes this month. scary. A quick spray with electrical contact cleaner solved it, but took some time to troubleshoot. JMO
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Old 08-01-2023, 11:14 AM   #4
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I hand pack only and don't trust the zerks alone. I also ignore any time based service intervals; the grease and bearings don't wear out sitting there - 12,000 miles seem reasonable and for me, that's every 2-3 years......even that is overkill, but overkill is better than underkill I suppose. :-)

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Old 08-01-2023, 11:18 AM   #5
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Irrespective of "repack interval", it is a good idea to do two checks FREQUENTLY:


#1. After driving, shoot the bearing cap with your ir gun to verify temperature. Heat= problem.


#2. Push on the top of the tire in and out to see if there is excessive play in the bearings. Excessive play in the bearings= problem.
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Old 08-01-2023, 11:21 AM   #6
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I don't have a travel trailer but for my car trailer, I check the hub temperatures every couple of hundred miles. They never get above ambient. I've never regreased them. That's after 10-12 years of 4000-8000 miles a year.
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Old 08-09-2023, 09:37 AM   #7
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One thing i never noticed is does your trailer have bearing buddies or the equivalent. My trailer has them factory and i just keep it topped up. Every few years i will pull everything apart clean, inspect, hand pack and reassemble.. I usually notice the bearing buddies go through about 1/2 the grease capacity every year..

Also don't cheap out on your grease and buy the $2 tube of grease for your gun.. Buy a good quality grease and you will see the diffrence..
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Old 08-10-2023, 11:14 PM   #8
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I don't have a travel trailer but for my car trailer, I check the hub temperatures every couple of hundred miles. They never get above ambient. I've never regreased them. That's after 10-12 years of 4000-8000 miles a year.
One of the things that I have noticed is that the axles on a car hauler is they usually use roller bearings. On rv trailers they are mostly ball bearings. While that is not always the case it does hold true a lot of the time. Which is why it is best to keep an eye on rv axle bearings.
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Old 08-11-2023, 09:51 AM   #9
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One of the things that I have noticed is that the axles on a car hauler is they usually use roller bearings. On rv trailers they are mostly ball bearings. While that is not always the case it does hold true a lot of the time. Which is why it is best to keep an eye on rv axle bearings.
I bet 99% of TT/5th wheels have roller bearings since 99% are Dexter or Lippert with AL-CO being used in the past. IMO Ball bearings in the size of whats used in 3500-7000 lb axles wouldn't hold up and it would be real hard to get the correct pressure when seating them since they're not tapered.
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