Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 02-20-2017, 02:52 PM   #1
Senior Member
 
jenandjon's Avatar
 
Join Date: Aug 2013
Location: Northeastern Nebraska
Posts: 954
Sealed wheel bearings??

Recently on a Facebook group I ran across the age old question. when do you pack your bearings? In the discussion someone mentioned they have sealed wheel bearings. Some people didn't believe the man so I googled it. Low and behold they do exist!

Anyone here have any experience with them?

Can you take the regular bearing and race out and replace them with sealed?

Where do you get them?

I have a 93 Jayco 5th wheel. we put on about 4,000 miles a year. Im going to have to replace my wheel bearings soon. They were questionable last year but I packed them anyway and crossed my fingers. This sound like a good deal to me. I am farmer I work on many pieces of equipment so I am familiar with what a sealed bearing is. I have seen them fail but anything with moving parts is going to fail eventually.
__________________
06 forest river Cardinal 34 TS towed by 03 freightliner Columbia HDT 435 hp 60 series Detroit, 10 speed, 3:55 gears with full locker. 260 inch wheel base. I am a Father, Farmer, and A Trucker.
jenandjon is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 02-20-2017, 03:26 PM   #2
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Lowell, Arkansas
Posts: 6,702
Not sure but my educated guess is if a bearing is a sealed unit then it will/may have synthetic grease in it which is good. Most rear wheel hub bearings are sealed units and get 70-K + miles on them.

Since they are a sealed unit which means the race is part of the set up then how will you do a bearing adjustment?? Just off the top of my old head that may be the primary reason why sealed bearings are not used with a two bearing set up which is designed so wheel bearing play can be adjusted.

Rear hub bearings are sealed and do not require an adjustment. Starter and alternator bearings are sealed and do not require an adjustment.

So with that thinking my guess is there is little if any side load on sealed bearings. On sealed bearings their primary forces are at right angles to the axis of rotation and little forces at a 45 degree or like you were going around a corner. The tapered roller bearings main purpose is better side force friction reduction and control.

Just because that is my opinion now does not mean that things have not changed and maybe they do make sealed bearings that would work for a trailer or set up using the two tapered roller bearings and therefore will require an adjustment.
__________________
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired
TeJay is online now   Reply With Quote
Old 02-20-2017, 05:40 PM   #3
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 8,693
If you have the part numbers for the bearing and race you might be able to find a sealed bearing to replace the set. Do some searches using the bearing numbers and you may get lucky.

I working in the mining industry for years, there are applications for sealed bearings.

Good Luck
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is online now   Reply With Quote
Old 02-20-2017, 05:57 PM   #4
Senior Member
 
wingnut60's Avatar
 
Join Date: Aug 2004
Location: Wherever we are
Posts: 4,103
Most of the sealed bearings are/were Dexter NevRLubes--there seems to be a trend away from them, it has been mentioned that they may fail without warning, since there is no adjustment. And they are machined to the axle spindle, so you can't replace a sealed bearing with a standard, or vice versa.
I had NevRLubes on my '05 Suites until just before a trip to AK in '12--opted to replace them arbitrarily and they were all in good shape. Replaced them again in '14 when I upsized the axles. Traded it off last month with the '14 models still in and having gone thru another AK trip in '16. So my experience with them has been positive.
I think they are much harder to come by nowadays.
Joe
__________________
'16 40QBH Phaeton
'15 38RSSA Mobile Suites--traded
'05 36TK3 Mobile Suites--retired but not forgotten
wingnut60 is offline   Reply With Quote
Old 02-22-2017, 07:38 PM   #5
Member
 
Join Date: Apr 2015
Location: Williamsburg, VA
Posts: 31
Sealed bearings have been around a long time. My 37 years in the truck repair business I have seen these come and go. Most of the time in the "lifetime" or Unitized hub assemblies you can only use the same as a replacement. Same goes for the regular bearing assemblies. There have been many concerns about the sealed bearing units. We have seen many early failures and the sealed units are more expensive. It is better in my opinion to take good care of your standard bearings than to rely on the sealed units and not do routine maintenance.
Whcopland is offline   Reply With Quote
Old 02-22-2017, 08:24 PM   #6
Senior Member
 
Join Date: Feb 2000
Location: On the road
Posts: 292
Would never buy another trailer with Never Lube bearings.
__________________
'13 Ram Laramie 3500, Aisin auto,4:10, Reese adapter and 20K hitch, '10 HitchHiker 36LKRSB
Larry is offline   Reply With Quote
Old 02-22-2017, 08:47 PM   #7
Senior Member
 
Join Date: Apr 2016
Location: Full Timers
Posts: 355
Dexter actually shipped us a free set of Easy Lube axles to replace our Never Lube axles and paid a shop to change them. We had two bearing failures in less than 10,000 miles. I would not even consider owning an RV with Never Lube bearings. RV was a Titanium by Glendale 5th wheel.
__________________
Dave & Sheryl Rambeau
2011 Itasca Meridian 39'
Rambeau is offline   Reply With Quote
Old 02-23-2017, 06:51 AM   #8
Senior Member
 
Join Date: Aug 2012
Posts: 1,578
The Never-Lube bearings had no distance between the races. That design caused way more stress than a conventional design with the bearings spaced some distance apart. Stupid design by stupid engineers.
lynnmor is offline   Reply With Quote
Old 02-23-2017, 06:54 AM   #9
Member
 
Join Date: Jan 2017
Posts: 44
Most motorcycles run sealed bearings since they don't see the side loading like an auto/truck or a trailer sees.

I would never consider a sealed bearing on my TT.
.
__________________
2000 F250 V10 pulling a
2004 WW 5th wheel Toy Hauler
Live to Ride, Ride to Lunch
Dukerdr is offline   Reply With Quote
Old 02-23-2017, 07:00 AM   #10
IC2
Senior Member
 
IC2's Avatar


 
Join Date: Jun 2010
Location: Upstate New York
Posts: 3,543
Much like Rambeau, I'll never own another trailer with sealed bearings (i.e. Nevr-Lube). You fail a bearing, you might have a chance on saving the axle. If not, and like my case, second owner of a Titanium, had to pay for replacement axles though at a greatly reduced price. These bearing capsules are not interchangeable with the conventional bearings. The 5200/6000 pound axles are the most notorious. If you want more nasty history on Nevr-Lube bearing axles, here's a place to start:http://www.irv2.com/forums/f44/axles...-ko-84376.html or you can search the Titanium Owners Group website here -http://www.titaniumrvowners.com/yabb/YaBB.pl
__________________
Dave W along with my DW, Susan and our poodlepups, Callie & Molly,2011 Ford F250 6.7 CCLB, 5er Hitch Option w/B&W Hitch,,Ride Rite air bags, 2014 Montana High Country 343RL (38')w/disc brakes
IC2 is offline   Reply With Quote
Old 02-23-2017, 07:27 AM   #11
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Lowell, Arkansas
Posts: 6,702
There are many areas of cars, trucks, or just vehicles in general that have gone through modifications or attempted improvements for two reasons.

To reduce the need for routine or scheduled maintenance and to remove the consumer from the mix. If and when some areas of any vehicle are not regularly maintained by competent technicians they will begin to emit harmful exhaust emissions or require unscheduled service which usually falls onto the dealer to rep[air for free.

What has changed?? I'll just list a few items. The COP ignition coil design. COP is "Coil Over Plug. That was introduced to eliminate spark plug wires that failed causing higher emissions. We have no ignition points which changed and needed constant adjustments to maintain a good spark. We no longer have carburetors, ignition caps or rotors for the same reasons. All fuel and spark is controlled by the CPU as of 1980. Torque to yield bolts for aluminum engines.

The auto industry had to guarantee that your vehicles emissions would last 50,000 miles.

The TT industry has tried with little luck the use of a grease gun to lubricate wheel bearings. The boating industry did it based on the fact that the trailer wheels were immersed into water every time the boat was launched. If you tell an owner to give it two squirts of grease most will think if 2 is good then 4 or 5 or 6 are better. The inner wheel seals get blown out and which usually the drum brakes.

Then the never lube bearings were tried again with mixed results. Part of this was begun based on the fact that the TT industry is the only industry which expects the owners to re-pack and lube the cheap bearings every 12,000 miles or 12 months.

I say that based on this fact. When we had a lot of FWD (front wheel drive) vehicles with the 2 bearing front wheel design, (just like a TT) we usually packed those bearings when we did a front brake repair of usually around 30,000 to 40,000 miles.

Then why is it that the TT industry expects owners to do that re-pack every 12 or 12?? Very simple. They are covering their butts because of the cheap CHINA bearings which may either be under rated for the weight or just cheap and probably won't last.

We had a TT and after just one trip (maybe 2,000 miles) to FL and back home all bushings on both axles were worn out completely. Why would they expect anything less. They were made out of plastic instead of a bronze material. Yes bronze is more expensive but it will last for many, many miles.

Sealed bearings have their place but it's not on a 2-bearing system which has a lot of side loading.
__________________
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired
TeJay is online now   Reply With Quote
Old 02-23-2017, 08:12 AM   #12
Senior Member
 
Join Date: Jul 2014
Posts: 27,457
With all this talk about sealed wheel bearings, I'll bet 90% of the front wheel drive cars on the road use them. They last into the 100,000 mile range and beyond.

Bulldozers use sealed bearings in the track idlers and wheels, talk about extreme duty. The only grease fitting is to adjust the track tension.

It's not the bearings, They are a proven design. It has to be the application.

Edit,

Got me thinking, maybe a little low on tire air pressure, or a little heavy on the trailer brake application adjustment, or a little over the designed bearing speed, or maybe a combination of some of the above is the cause of sealed bearing overheating and then failure.
twinboat is offline   Reply With Quote
Old 02-23-2017, 12:53 PM   #13
Senior Member
 
Join Date: May 2011
Posts: 1,058
We have had Never Lube bearings on our last two 5th wheels with no issues. Does not mean that we will not in the future but 7 years for the 1st 5th wheel and 5 years on the current one.
jpharley is offline   Reply With Quote
Old 02-23-2017, 02:38 PM   #14
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Lowell, Arkansas
Posts: 6,702
You are absolutely correct on the application of the sealed bearings. With the FWD drive vehicles they all have a hub bearing and CV axles. The CV axles allow turning of the front wheels while applying power and allows for the up and down suspension movement. The CV axles are probably absorbing the side thrust abuse and not the sealed bearings. The hub sealed bearings keep the axle in place laterally and vertically.

To use them on a 2 bearing set up like a TT or the older style RWD vehicles it has to control and absorb laterally, vertically and at an 45 degree angle or leaning pressures. The tapered roller bearing was the perfect design to absorb stress in all directions.
__________________
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired
TeJay is online now   Reply With Quote
Reply

Tags
led, seal



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sealed Wheel Bearing Replacement DavisDRV 5th Wheel Discussion 1 07-29-2014 07:39 PM
Sealed Wheel Bearings cochise1949 Ford Motorhome Chassis Forum 2 04-14-2014 08:57 PM
Sealed vs. non-sealed battery? Gandalara Going Green 15 12-21-2013 10:28 PM
Sealed wheel bearing Puma Excel Owner's Forum 19 06-18-2013 02:12 PM
Un-sealed (de-sealed) windows and what to do !!! Renden Newmar Owner's Forum 14 11-09-2012 04:49 PM


All times are GMT -6. The time now is 08:48 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.