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Old 06-23-2021, 11:28 AM   #1
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Dexter Nev-R-Lube Bearing R&R

Dexter Nev-R-Lube drum or disc brake bearing replacement procedure using a screw type bearing press.

If you’re a DIY’er with a good set of tools and a bit of I can do it up your sleeves this is a doable workbench task all you need is the screw press set and snap ring pliers. No hammers needed.

This R&R does require special tools. 1 7/16” socket, small and large snap ring pliers and a bearing removal and installation tool set. See Tool Set. This thread focuses on the actual bearing R&R after the drum or hub has been removed from the trailer.

Bearing removal with a hydraulic press that should be pretty simple but having a press ring that contacts the new bearing cone or ID for installation is not acceptable. Any press force applied to the cone or ID is a down the road failure. Not tightening this bearing to the correct torque spec 145-155 lb-ft per the Dexter document is another source of a down the road failure. See the Dexter doc for the periodic Nev-R-Lube bearing inspection procedure.

Removal.

Use a large snap ring plier and remove the bearing retaining ring. This is a robust snap ring, handle carefully. See Snap Ring.

Clean the snap ring groove and hub bore. The old bearing will come out on the wheel side of the hub.

Select a push plate from the set that pushes on the old bearing but is small enough to not touch the hub, select a receiving cup just large enough to allow the old bearing 76mm OD to be pushed into it without jamming. Select a cover plate for the receiving cup and insert the press screw, thrust washer under the nut and then the nut. Make sure to lubricate the threads liberally with grease and between the nut and the thrust washer. Center the push ring, receiving cup and press screw in the bearing. See Removal A, B and Tool and Bearing.

Now it’s wrench time. Hold the screw head and turn the nut drawing the bearing into the receiver cup. If it doesn’t move reset the screw press centering it carefully.

Installation.

Carefully clean the hub bore removing ALL debris. Any debris that prevents the bearing from fully seating into the hub bore may prevent installing the snap ring and will require removing the new bearing damaging it in the process.

Apply a very light film of grease on the hub bore and bearing OD.
Position the new bearing in the hub bore and assemble the tool set that pushes on the CUP, the OUTSIDE RACE ONLY. These plates have recessed centers that do not apply the force thru the cone but only on the cup. See New Bearing A and B

With the threads lubricated and the tool centered it’s back to the wrenches and turn the nut pressing the new bearing into the hub bore.

When the bearing bottoms out in the hub bore, you’ll feel it, ALL STOP when the nut can’t turn anymore.

Remove the press tool and apply a light film of grease in the snap ring groove and carefully install the snap ring. It should snap right into the groove if the bearing is fully seated in the bore. See New Bearing C.

Prior to replacing the new bearing on the axle apply a film of anti-seize grease to the axle and a light film on the ID of the bearing. Tighten the nut to 145-155 lb-ft.

Refer to the Dexter Hub Drum Bearing doc pages 3-4 attached below.

Gary

Nev-R-Lube flyer info.
https://www.dexteraxle.com/user_area...lit-215-00.pdf

Dexter bearing servicing info, Nev-R-Lube see pages 3-4
https://www.dexteraxle.com/user_area...ctionSheet.pdf

Example of the tool set I used.
https://www.harborfreight.com/front-...-pc-63728.html
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Old 06-23-2021, 11:34 AM   #2
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Nev-R-Lube Bearing Repairs

Gary,

Nice job...thanks for sharing!

Tom - S/OS #025
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Old 07-02-2021, 09:08 PM   #3
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Sometimes Never Lubed

Thanks for that informative post. Plan on repacking x4 soon.
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Old 07-02-2021, 09:29 PM   #4
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Thanks, good information
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Old 07-03-2021, 06:13 AM   #5
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Thanks Gary. Where did you procure your tool set? Cost? I was charged $20 to carry the hub into the shop for the bearing R&R. Wondering what the tool payback is.
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Old 07-03-2021, 06:22 AM   #6
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Quote:
Originally Posted by dznf0g View Post
Thanks Gary. Where did you procure your tool set? Cost? I was charged $20 to carry the hub into the shop for the bearing R&R. Wondering what the tool payback is.
Looks like it was $119 here’s his link.
https://www.harborfreight.com/front-...-pc-63728.html
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Old 07-03-2021, 06:35 AM   #7
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Looks like it was $119 here’s his link.
https://www.harborfreight.com/front-...-pc-63728.html
Sorry, missed the links.
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Old 07-03-2021, 06:35 AM   #8
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Quote:
Originally Posted by dznf0g View Post
Wondering what the tool payback is.
Maybe a couple of beers or better someday if I'm lucky.

As I've already borrowed this tool years ago and successfully did the job on my VW this became a challenge and project. And to show it can be done you don't need to replace a usable hub or drum if it's a bearing issue.

Yup it's a Harbor Freight set. Others exist but this one was 4 miles down the road.

That hub is already promised to a fellow Slider as a carry along spare. I carry a spare more out of luck that I have it, why not carry it. And I do carry the special tools to do a complete hub R&R just because.

Gary
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Old 07-03-2021, 06:48 AM   #9
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Thanks, Gary! Saved to my "how to" files.
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Old 07-03-2021, 06:52 AM   #10
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Quote:
Originally Posted by GCinSC2 View Post
Maybe a couple of beers or better someday if I'm lucky.

As I've already borrowed this tool years ago and successfully did the job on my VW this became a challenge and project. And to show it can be done you don't need to replace a usable hub or drum if it's a bearing issue.

Yup it's a Harbor Freight set. Others exist but this one was 4 miles down the road.

That hub is already promised to a fellow Slider as a carry along spare. I carry a spare more out of luck that I have it, why not carry it. And I do carry the special tools to do a complete hub R&R just because.

Gary
Yeah Gary....labor rates are high these days. I'm thinking that's a 6 pack job.....12 pack if you have a "helper".
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Old 07-20-2021, 09:46 AM   #11
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About to do the same task on our 2017 Classic. Two of the bearings on our trailer look like grease is seeping from the bearing. Seems like breakdown waiting to happen

Was quoted $90 (1 hour) in labor to press out 4 old and press new 42mm bearings.
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Old 07-20-2021, 09:54 AM   #12
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HopJockey,

Any symptoms to go along with the observation? Noise, failed Dexter rock in-out test etc.

As long as the shop presses the new ones in on the OD only that's $90 to the good.

Gary
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Old 07-20-2021, 03:36 PM   #13
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Quote:
Originally Posted by GCinSC2 View Post
HopJockey,

Any symptoms to go along with the observation? Noise, failed Dexter rock in-out test etc.

As long as the shop presses the new ones in on the OD only that's $90 to the good.

Gary
Gary,

No other symptoms noted only because I didn't check for them. The visual had me worried once I saw the two bears that weren't weeping grease. We're going on a long 7,000 mile trip in Sept and I wanted piece of mind. New tires (costco Bridgestone), Timkim bearings, turned drums (both surfaces), 4 new brake assemblies and shocks (yeah, one shock mount missing a nut and one shock leaking).

Entire project cost approx: $2,110

Tires: Bridgestone Dueler tires: 700
Timkin Bearings 4ea: 690
Shocks, 4ea: 190
Drum Turning: 130
Brake Assembly Backing Plates, 4ea: 400

I can only imagine how much this would have cost me at the dealership and how long of a wait, versus doing myself.

Drums came out nice (pic)
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Old 07-20-2021, 04:01 PM   #14
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HopJockey

Looks like a successful project is at hand. Excuse me if you know or read about this but std brakes or self adj will need initial adjusting.

Looking good.

Gary
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Old 07-21-2021, 07:19 AM   #15
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Very nice write up. Thanks!
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