pressing wheel bearings on moser axle shafts

[hondo]

i went to replace the inner axle seals on my cj and when i got it apart i found roller bearings that the outer race was shattered on ( also looked like it hadn't been greased in 15 years.) so i bought a moser bearing kit. and am working on pressing the new ones in, my question is how far do i go there is no distinctive shoulder that i can feel and i don't want to go to far and have to buy a new set the retaining ring is currently just at the end of the machined surface. also the directions weren't clear on how the spacer works. thanks for any help

 

[Lumpy Grits]

I would call Moser if this doesn't ans your concerns.
http://www.moserengineering.com/moser/wp-content/uploads/2010/04/JeepInstructions.pdf

LG

 

[Bent]

Mine have a shoulder on the axle that the bearing is pressed down against. The bearing spacer will be tapped into the housing after the inner axle seal is installed. If you look at a rear end type that the Timken set 9 bearings are native to like a Buick 8.5 or Dana 35, you will see a shoulder inside the housing that keeps the outer race from moving inboard. The bearing spacer replicates that shoulder. The AMC20 two piece set-up places the outer bearing race or "cup" on the wheel side of the bearing where it can't drift away from the bearing and remove the preload.

Also, the Napa brand version of the Timken set 9 are a lot cheaper and you should be using OEM type AMC20 inner axle seals. Using Timken bearings for wheel bearings is like making hamburger out of prime rib.

 

[Lumpy Grits]

Mine have a shoulder on the axle that the bearing is pressed down against. The bearing spacer will be tapped into the housing after the inner axle seal is installed. If you look at a rear end type that the Timken set 9 bearings are native to like a Buick 8.5 or Dana 35, you will see a shoulder inside the housing that keeps the outer race from moving inboard. The bearing spacer replicates that shoulder. The AMC20 two piece set-up places the outer bearing race or "cup" on the wheel side of the bearing where it can't drift away from the bearing and remove the preload.

Also, the Napa brand version of the Timken set 9 are a lot cheaper and you should be using OEM type AMC20 inner axle seals. Using Timken bearings for wheel bearings is like making hamburger out of prime rib.

Really-Have some 30 year old Timken wheel and axle bearings work'n just fine.
BTW-Moser, the last axles I installed used Timken as OEM.
The NAPA set 9 has the wrong collar. Order the bearings from Moser
Also-The AMC, OEM 2 piece axle uses a 2 piece tapered bearing-race set up. Moser uses a 1 piece bearing
LG

 

[GARGOYLEJEEPER]

I am with LG on this if all the 1 piece`s would have used normal bearings (Timken Tapered Roller Bearings) instead of those set 9-10 they would not have a problem. They are good axles weak bearings.
Do not like prime rib, more of a sirloin or tri-tip - round type of man.

 

[Lumpy Grits]

In the case of the Moser 1 piece in Jeep '20s'.
The bearing used by Moser is far better at carrying a radial and lateral load than then OEM 2 piece bearing was.
BTW-The 2 piece axle bearing was also a Timken.
LG

 

[hondo]

i use timken for everything when it won't take me forever to get. i think i figured it out using the measurements in the directions lumpy grits posted I'm now trying to sand down the spacer to fit properly.

I'm more of a venison guy myself but i have been known to grill up some beef every now and then.

 

[GARGOYLEJEEPER]

Mmm, Oregon Blacktail.

 

[Lumpy Grits]

i use timken for everything when it won't take me forever to get. i think i figured it out using the measurements in the directions lumpy grits posted I'm now trying to sand down the spacer to fit properly.

I'm more of a venison guy myself but i have been known to grill up some beef every now and then.

Call Moser, and get the correct parts-
Do the job once--
LG

 

[hondo]

in the directions moser says to sand them down till the bearing sticks out .020-.080. got it back together ill go for a test drive in a few hours.

 

[Lumpy Grits]

OK-The thickness is no big deal to modify.
Let me suggest, that you keep a spare set of Moser set-9 bearings for your axles on hand.

GOOD LUCK
LG

 

[Bent]

Really-Have some 30 year old Timken wheel and axle bearings work'n just fine.
BTW-Moser, the last axles I installed used Timken as OEM.
The NAPA set 9 has the wrong collar. Order the bearings from Moser
Also-The AMC, OEM 2 piece axle uses a 2 piece tapered bearing-race set up. Moser uses a 1 piece bearing
LG

The Napa set 9 are exactly the same as the Timken set 9 as they are a direct replacement on anything that came with Timken set 9 bearings from the factory. Timken set 9 also have a separate cup and cone. they just snap together with a separate ring at the large end of the bearing cage. The press ring or "collar" is the same as the Timkens that were removed. Timken bearings are the best. But if you change yours more than once every thirty years, there is a cheaper option. My local Napa store pressed them on for me. That was a pretty good reason to buy their product.

 

[hondo]

OK-The thickness is no big deal to modify.
Let me suggest, that you keep a spare set of Moser set-9 bearings for your axles on hand.

GOOD LUCK
LG

if i keep the model 20 i will eventually get a spare shaft setup. it seems to be working alright so far thanks for the help. or i might pick up some spare bearings next weekend at the 4 wheel parts truck and jeep fest.

 

[driver007]

When installing the inner seal the one the spacer goes against. Does it hit a lip in the inside of the axle? I have a one piece that needs some tlc and have to replace the seal and was wondering about the seal install?

 

[hondo]

yes it goes up against a lip. i used a seal driver and hammered it in till it wouldn't budge any more.