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Thread: Re-pack bearings necessary?
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03-27-2024, 04:41 PM #41
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03-27-2024, 05:01 PM #42
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Are you starting to feel like you asked a question like which ice cream is better, chocolate or vanilla? And somebody else will say strawberry. lol. The mechanically minded seem to always say to pull the bearings and hand pack them. Dexter, who designed the EZ Lube says to use the zerks but to inspect at 12 months or 12,000 miles. With the rv, I inspect at 12,000 not 12 months. I don't think it matters what you do, somebody will disagree with you on this subject. I ended up talking with personal friends, who are mechanics, and kind of follow their recommendation and it seems to be working okay for me. Good luck with your decision.
2019 29rs
2007 Ram diesel, 4x4 long bed
CDL with tanker, hazmat, emergency vehicle, and bus endorsements
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03-27-2024, 07:00 PM #43
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Why pump grease in if you're going to take it out anyways? It all seems contradictory.
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03-27-2024, 07:44 PM #44
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Chris Lynn
Union City TN
2016 Chevy 2500HD
2020 Imagine 3250BH
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03-28-2024, 05:55 AM #452021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
Two bathrooms, no waiting 155 fresh, 104 black, 104 grey 1860 watts solar.
800AH BattleBorn Batteries No campgrounds 100% boondocking
2020 Silverado High Country 3500 dually crewcab Duramax Allison
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03-28-2024, 07:50 AM #46
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Me too. We went on a factory tour in Elkhart (leaving name out on purpose) a few weeks ago, and much to my surprise we saw MORryde IS axles on the floor with oil bath hubs.
I said earlier, I’m not sure how long they would have to sit before starting to rust, but I leave a grain trailer sit for many months in the off season, and in 15 years never had a problem. If the RV is parked in a campground for a year, that might be a different story.
My theory on maintenance interval being longer would be that the entire volume of oil is exchanged with the bearings in an oil bath, whereas there is very little grease migration in a packed-bearing situation.Larry and JoAnna
‘23 Chevy 3500HD CCLB DRW High Country 6.6L Diesel, ‘22 Solitude 310GK-R, Hensley BD5
MORRyde 8k IS, QD8000 Genny, Dual 5kVA Quattros
Dual SOK 48V 100ah Server Rack Batts (10kWHr)
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03-28-2024, 07:59 AM #47
There are lots of different roads to success. I think back to the 1960's when my parents got their first travel trailer. Back then it seemed that nobody thought much about bearings and tires. It seemed there were very few incidents. For the first 20 years that I pulled trailers I hate to admit it but I don't think I ever regularly checked my bearings or brakes. I fortunately never had an issue.
Now with the internet forums, we spend lots of time talking about how and how often to repack bearings and what brand of bearings and grease to use. With this said, I'm all for any type of preventive maintenance.2020 Reflection 273MK
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03-28-2024, 09:22 PM #48
Have you seen the Dexter video? It shows the tire being rotated while greasis being pumped, and some dirty grease exiting. They prononce it done.
However that is misleading. When dirty is grease pushed thru the inner bearing on its way to the outer bearing it will run into clean grease which it will push towards the outer bearing. This clean grease will push the dirty grease out of the outer bearing and you will see the dirty grease exiting followed by the clean grease. You will think you are done.
But the dirty grease from the inner bearing hasn't exited yet!! It is still in the hub somewhere. Just where is a wild guess, as it depends on just how much grease was in the hub cavity betwee n the inner and outer bearings. It is possible that it may have entered the outer bearing. in order to be sure that all of the dirty grease has exited you need to see two bands of dirty grease exit. This will require almost an entire tube of grease for each wheel!! And it will take that much every time!. All of that pumping increases the chance of grease pushing past the seal and onto the brakes. An entire tube per wheel also drives the cost up.
This is why some do not like or use this feature.
Count me in with the not a user crowd.Last edited by huntindog; 03-28-2024 at 09:26 PM.
2021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
Two bathrooms, no waiting 155 fresh, 104 black, 104 grey 1860 watts solar.
800AH BattleBorn Batteries No campgrounds 100% boondocking
2020 Silverado High Country 3500 dually crewcab Duramax Allison
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03-28-2024, 09:29 PM #492021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
Two bathrooms, no waiting 155 fresh, 104 black, 104 grey 1860 watts solar.
800AH BattleBorn Batteries No campgrounds 100% boondocking
2020 Silverado High Country 3500 dually crewcab Duramax Allison
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03-29-2024, 05:36 AM #50
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