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Thanks Joe.
I thought that I had crossed this bridge before. =20
I appreciate revisiting these posts.
=20
Dave H.=20
> On 01/19/2026 7:46 PM PST Joe Boruch <jaboruch@yahoo.com> wrote:
> =20
> =20
> =20
> There is a thread from 2020 about the bearings. Here is what I had poste=
d 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 an=
d 2.834 OD. JoeB"
> =20
> Here are some other posts from that thread:
> =20
> 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 Gr=
een 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. N=
umber RW507E.=20
> Dave H.=20
>=20
> Sent from my iPad
>=20
>=20
> > On Dec 29, 2020, at 5:10 PM, Phil Gott <vfracing@aol.com mailto:vfracin=
g@aol.com> wrote:
> >=20
> > Thanks, guys!
> > The seal that failed is not the O-ring. It is the seal in the bearing i=
tself. Gear oil from the differential is slowly working its way into the be=
aring and diluting the grease, which is getting thrown out onto the brakes.
> > Much appreciate the responses. I had not heard of =E2=80=9CGreen=E2=80=
=9D bearings as a brand before. Good to know that the chamfer radii are dif=
ferent from Timken.
> > In googling the part numbers it looks like Moser actually sells the bea=
ring and retainer as a set available from jEGS, Summit, etc.
> > Thanks very much, everyone! And for such fast responses. What a great g=
roup!
> > Phil
> >=20
> > Sent from my iPhone
> >=20
> >> On Dec 29, 2020, at 7:54 PM, Dave <dlhogye@comcast.net mailto:dlhogye@=
comcast.net> wrote:
> >>=20
> >> Check the radius of the Timken bearing closely and make sure it will f=
it, 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 bearing=
s. The first time I used Timken, I found that the radius of the bearing in=
terferes with the radius of the axle and keeps the bearing from going on as=
it should. There was about .015" gap. =20
> >> 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 pre=
ss it on all the way, leaving a gap to the shoulder.=20
> >> Dave H.
>=20
> =20
> On Monday, January 19, 2026 at 10:28:22 PM EST, DAVE HOGYE via Fot <fot@a=
utox.team.net> wrote:
> =20
> =20
> Glen,
> I should have kept the FoT in the thread. Important stuff.
> I noticed this the first time I changed bearings. If I remember correctl=
y, 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 obvious=
ly have a different radius. I believe Southwick and Moser use the Green be=
arings. There may be different part numbers from these companies for diffe=
rent dimensions for the radius. I think the basic number is 9507. So, th=
ere might be a Timken with the needed radius. The Green number is 9507F or=
RW507E. =20
> =20
> Dave H.=20
>=20
> >=20
> > > =20
> > >=20
> >=20
> _______________________________________________
> fot@autox.team.net mailto:fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> 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@ya=
hoo.com
>=20
>=20
>=20
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<!doctype html>
<html>
<head>=20
<meta charset=3D"UTF-8">=20
</head>
<body>
<div style=3D"font-size: 12pt; font-family: helvetica,arial,sans-serif; c=
olor: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">Thanks Joe.</sp=
an>
</div>=20
<div class=3D"default-style" style=3D"font-size: 12pt; font-family: helve=
tica,arial,sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">I thought that =
I had crossed this bridge before. </span>
</div>=20
<div class=3D"default-style" style=3D"font-size: 12pt; font-family: helve=
tica,arial,sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">I appreciate re=
visiting these posts.</span>
</div>=20
<div class=3D"default-style" style=3D"font-size: 12pt; font-family: helve=
tica,arial,sans-serif; color: #333333;">
</div>=20
<div class=3D"default-style" style=3D"font-size: 12pt; font-family: helve=
tica,arial,sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">Dave H. </=
span>
</div>=20
<blockquote type=3D"cite">=20
<div>
On 01/19/2026 7:46 PM PST Joe Boruch <jaboruch@yahoo.com> wrote:
</div>=20
<div>
</div>=20
<div>
</div>=20
<div class=3D"ydp6d489986yahoo-style-wrap" style=3D"font-family: Helveti=
ca Neue, Helvetica, Arial, sans-serif; font-size: 13px;">=20
<div>
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">
There is a thread from 2020 about the bearings. Here is what I h=
ad posted back then;
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">
"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, 1.3=
77 ID and 2.834 OD. JoeB"
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">
Here are some other posts from that thread:
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">
</div>=20
<div dir=3D"ltr" data-setdir=3D"false">=20
<div>=20
<div class=3D"ydp28affc3bjb_0 ydp28affc3bX_6MGW ydp28affc3bN_6Fd5" st=
yle=3D"outline-color: currentcolor !important;">=20
<div style=3D"outline-color: currentcolor !important;">=20
<div dir=3D"ltr" style=3D"outline-color: currentcolor !important;">
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.
<br style=3D"outline-color: currentcolor !important;" clear=3D"non=
e">Dave H.
<br style=3D"outline-color: currentcolor !important;" clear=3D"non=
e">
<br style=3D"outline-color: currentcolor !important;" clear=3D"non=
e">Sent from my iPad
</div>=20
</div>=20
</div>=20
<div class=3D"ydp28affc3bjb_0 ydp28affc3bX_6MGW ydp28affc3bN_6Fd5" st=
yle=3D"outline-color: currentcolor !important;">=20
<div style=3D"outline-color: currentcolor !important;">=20
<div style=3D"outline-color: currentcolor !important;">=20
<div class=3D"ydp28affc3bqtd-body" style=3D"border-left-width: 1px=
; border-left-style: solid; border-left-color: #cccccc; margin: 0px; paddin=
g: 8px; outline-color: currentcolor !important;">=20
<div id=3D"ydp28affc3byqtfd14290" class=3D"ydp28affc3byqt38841384=
64" style=3D"outline-color: currentcolor !important;">
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> On Dec 29, 2020, at 5:10 PM, Phil Gott <<a style=3D"text-decor=
ation-style: solid; text-decoration-color: currentcolor; outline-color: cur=
rentcolor !important;" href=3D"mailto:vfracing@aol.com"; target=3D"_blank" r=
el=3D"noopener" shape=3D"rect">vfracing@aol.com</a>> wrote:
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> Thanks, guys!
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> The seal that failed is not the O-ring. It is the seal in the bea=
ring 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 b=
rakes.
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> Much appreciate the responses. I had not heard of =E2=80=9CGreen=
=E2=80=9D bearings as a brand before. Good to know that the chamfer radii a=
re different from Timken.
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> In googling the part numbers it looks like Moser actually sells t=
he bearing and retainer as a set available from jEGS, Summit, etc.
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> Thanks very much, everyone! And for such fast responses. What a g=
reat group!
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> Phil
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">> Sent from my iPhone
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>> On Dec 29, 2020, at 7:54 PM, Dave <<a style=3D"text-decora=
tion-style: solid; text-decoration-color: currentcolor; outline-color: curr=
entcolor !important;" href=3D"mailto:dlhogye@comcast.net"; target=3D"_blank"=
rel=3D"noopener" shape=3D"rect">dlhogye@comcast.net</a>> wrote:
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>>
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>> 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 ins=
tall 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. &=
nbsp;
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>> 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, notic=
ed I could press it on all the way, leaving a gap to the shoulder.
<br style=3D"outline-color: currentcolor !important;" clear=3D"n=
one">>> Dave H.
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
<div>
</div>=20
</div>=20
<div id=3D"ydp18209e53yahoo_quoted_8887345848" class=3D"ydp18209e53yahoo=
_quoted">=20
<div style=3D"font-family: 'Helvetica Neue', Helvetica, Arial, sans-ser=
if; font-size: 13px; color: #26282a;">=20
<div>
On Monday, January 19, 2026 at 10:28:22 PM EST, DAVE HOGYE via Fot &l=
t;fot@autox.team.net> wrote:
</div>=20
<div>
</div>=20
<div>
</div>=20
<div>=20
<div id=3D"ydp18209e53yiv2001255019">=20
<div>=20
<div style=3D"font-size: 12pt; font-family: helvetica, arial, sans-=
serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">Glen,</sp=
an>
</div>=20
<div class=3D"ydp18209e53yiv2001255019default-style" style=3D"font-=
size: 12pt; font-family: helvetica, arial, sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">I should =
have kept the FoT in the thread. Important stuff.</span>
</div>=20
<div class=3D"ydp18209e53yiv2001255019default-style" style=3D"font-=
size: 12pt; font-family: helvetica, arial, sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">I noticed=
this the first time I changed bearings. If I remember correctly, Tim=
ken, which I prefer, had a smaller radius and it didn't seat all the way.&n=
bsp; It was seating down in the radius of the bearing. Of course I di=
dn't think to check that radius before installing it. Green and Timke=
n obviously have a different radius. I believe Southwick and Moser us=
e 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 rad=
ius. The Green number is 9507F or RW507E. </span>
</div>=20
<div class=3D"ydp18209e53yiv2001255019default-style" style=3D"font-=
size: 12pt; font-family: helvetica, arial, sans-serif; color: #333333;">
</div>=20
<div class=3D"ydp18209e53yiv2001255019default-style" style=3D"font-=
size: 12pt; font-family: helvetica, arial, sans-serif; color: #333333;">
<span style=3D"font-family: helvetica; font-size: 12pt;">Dave H.&n=
bsp;</span>
</div>=20
<blockquote type=3D"cite">=20
<div id=3D"ydp18209e53yiv2001255019ydp1e43c2d1yahoo_quoted_9210540=
391" class=3D"ydp18209e53yiv2001255019ydp1e43c2d1yahoo_quoted">=20
<div class=3D"ydp18209e53yiv2001255019ydp1e43c2d1yahoo-style-wrap=
" style=3D"font-family: Arial, Helvetica, sans-serif; font-size: 16px;">=20
<div class=3D"ydp18209e53yiv2001255019ydp1e43c2d1inline_reply_qu=
ote_container" style=3D"font-family: 'Helvetica Neue', Helvetica, Arial, sa=
ns-serif; font-size: 13px; color: #26282a; border-left: 1px solid #ccc; pad=
ding-left: 8px; margin: 0px 0px 0px 8px;">=20
<div>=20
<div id=3D"ydp18209e53yiv2001255019ydp1e43c2d1yiv9099965939">=
=20
<div>=20
<div>=20
<blockquote type=3D"cite">=20
<div dir=3D"ltr">=20
<div id=3D"ydp18209e53yiv2001255019ydp1e43c2d1yiv90999659=
39yqtfd71793" class=3D"ydp18209e53yiv2001255019ydp1e43c2d1yiv9099965939yqt1=
094362136">
</div>=20
</div>=20
</blockquote>=20
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</div>=20
</blockquote>=20
</div>=20
</div> _______________________________________________
<br><a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"no=
opener">fot@autox.team.net</a>
<br>
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opener">http://www.fot-racing.com</a>
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</div>=20
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