[Fot] info needed re Southwick Moser axles

[DAVE HOGYE]

Thanks Joe.
I thought that I had crossed this bridge before.  
I appreciate revisiting these posts.
 
Dave H. 

> On 01/19/2026 7:46 PM PST Joe Boruch <jaboruch at yahoo.com> wrote:
>  
>  
>  
> There is a thread from 2020 about the bearings.  Here is what I had posted back then;
> "The Moser package that I have, which came with 2 bearings and 2 press on retainers is part number MSR-9507F.  The bearing is an RW507E, 1.377 ID and 2.834 OD.  JoeB"
>  
> Here are some other posts from that thread:
>  
> The Timken number that I tried using is RW507ER.  Perhaps the Suffix R is the radius designation.  In any event, it doesn't really cross with the Green bearing used for the Moser axle and I could not get a different Timken bearing.  The inner races have a different radius on the i.d.  I alway use Timken, but not this time.  Southwick will also send you Green bearings.  Number RW507E. 
> Dave H. 
> 
> Sent from my iPad
> 
> 
> > On Dec 29, 2020, at 5:10 PM, Phil Gott <vfracing at aol.com mailto:vfracing at aol.com> wrote:
> > 
> > Thanks, guys!
> > The seal that failed is not the O-ring. It is the seal in the bearing itself. Gear oil from the differential is slowly working its way into the bearing and diluting the grease, which is getting thrown out onto the brakes.
> > Much appreciate the responses. I had not heard of “Green” bearings as a brand before. Good to know that the chamfer radii are different from Timken.
> > In googling the part numbers it looks like Moser actually sells the bearing and retainer as a set available from jEGS, Summit, etc.
> > Thanks very much, everyone! And for such fast responses. What a great group!
> > Phil
> > 
> > Sent from my iPhone
> > 
> >> On Dec 29, 2020, at 7:54 PM, Dave <dlhogye at comcast.net mailto:dlhogye at comcast.net> wrote:
> >> 
> >> Check the radius of the Timken bearing closely and make sure it will fit, or is larger than the radius on the axle flange before you install it.  Moser axles don't come with Timken bearings.  They come with Green bearings.  The first time I used Timken, I found that the radius of the bearing interferes with the radius of the axle and keeps the bearing from going on as it should.  There was about .015" gap.  
> >> The numbers on the Green box are 9507F RW507E.  I asked the auto parts guy to get me the Timken cross and when installing it, noticed I could press it on all the way, leaving a gap to the shoulder. 
> >> Dave H.
> 
>  
> On Monday, January 19, 2026 at 10:28:22 PM EST, DAVE HOGYE via Fot <fot at autox.team.net> wrote:
>  
>  
> Glen,
> I should have kept the FoT in the thread.  Important stuff.
> I noticed this the first time I changed bearings.  If I remember correctly, Timken, which I prefer, had a smaller radius and it didn't seat all the way.  It was seating down in the radius of the bearing.  Of course I didn't think to check that radius before installing it.  Green and Timken obviously have a different radius.  I believe Southwick and Moser use the Green bearings.  There may be different part numbers from these companies for different dimensions for the radius.  I think the basic number is 9507.   So, there might be a Timken with the needed radius.  The Green number is 9507F or RW507E.  
>  
> Dave H. 
> 
> > 
> > >  
> > > 
> > 
> _______________________________________________
> fot at autox.team.net mailto:fot at autox.team.net
> 
> http://www.fot-racing.com
> 
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/jaboruch@yahoo.com
> 
> 
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20260119/5104dc6f/attachment.htm>