Front brng and seals

bill e satterfield

New member
Dec 14, 1999
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I need to get new bearings and seals for my 75 eleganza. Got them last
time from cinnabar. Thought I saw where someone had posted a NAPA# for
the proper front bearings. Anybody know if this is right?
Bill
 
Tom, I just bought coach . It rides and steers fine and is in real
nice condition. When I asked PO about front wheel brngs he didn't have
any idea what I was talking about. He has put 32,000 miles on it, it had
30,000 on it when ihe got it. Hopefully the person he bought it from had
them serviced. I'm going to start tearing it apart tomorrow on the
driveway and would like to be able to get parts locally if needed. Also
it has always run D rated tires at 65
Bill

> Why do you need new bearings? Are they defective in some way? If not
> clean
> them and inspect them closely for heating(cdiscoloration), pitting
> or gouges
> and if none are detected repack them with synthetic grease and
> reinstall
> them with new grease seals. The old bearings that have been running
> properly
> and are not defective are far better than a new set of untested
> bearings.
>
>
>
>

> >
> >
> >I need to get new bearings and seals for my 75 eleganza. Got them
> last
> >time from cinnabar. Thought I saw where someone had posted a NAPA#
> for
> >the proper front bearings. Anybody know if this is right?
> >Bill
> >
> >
>
 
Taken from the GMC FAQ at:
http://www.web-access.net/~bmassey/gmc-faq.html

Where do I purchase and what Front Wheel Bearings do I need?

Cinnibar and Gateway sell 'matched' sets of Timken wheel bearings. These
include a spacer ring that installs between the two cones whose thickness
dictates the assembled axial clearance of .095". The bearings will have
this hand etched on the spacer. They cost about $80 per set including
inner and outer seals. (CAUTION: Do not mix these bearing parts with any
others as this will change the clearances.)
Why is that important you ask? Good question. The outside of the hub
should measure from 2.0015" to 2.0020". The inside diameter of the bearing
that I have, measures 1.970". If I were to press that bearing on a hub
with maximum outside dimension of 2.0020" there would be a.032"
interference fit. Thats pretty tight and would reduce the axial clearance
of the bearing by some amount. How much? I don't really know, however the
cinnabar engineers have run tests on the various bearings with maximum and
minimum dimensions for both the hub, knuckle and bearing and decided that
in the worst case of each, an axial clearance of .095" is the minimum
clearance that can be safely used.
Cinnabars part number - 12351677
Gateway's part number -
Others to use in a pinch: (same bearings but not clearanced for our
application) Use at your own risk!!
Bower/BCA--------------------------- A-23
CR -------------------------------------- BR-23
J.C. Whitney------------------------- 38-0649-P
New Departure---------------------- S-77
Timken--------------------------------- 23 Specify .0095 axial clearance
NAPA---------------------------------- Set-23
Federal-------------------------------- A-23
- --------------------------------------------------

>I need to get new bearings and seals for my 75 eleganza. Got them last
>time from cinnabar. Thought I saw where someone had posted a NAPA# for
>the proper front bearings. Anybody know if this is right?
>Bill
 
What I wanted to know in the first place is whether the NAPA bearing sets
were the
proper clearance for the gmc application. If they're not I dont want
them I bought two sets of brngs from Cinnabar last year and believe I
paid 94.00 per set. How about it Arch. I believe you posted something
on this before.
Bill

On Mon, 29 May 2000 12:23:26 -0500 Billy Massey
writes:
> Taken from the GMC FAQ at:
> http://www.web-access.net/~bmassey/gmc-faq.html
>
> Where do I purchase and what Front Wheel Bearings do I need?
>
> Cinnibar and Gateway sell 'matched' sets of Timken wheel bearings.
> These
> include a spacer ring that installs between the two cones whose
> thickness
> dictates the assembled axial clearance of .095". The bearings will
> have
> this hand etched on the spacer. They cost about $80 per set
> including
> inner and outer seals. (CAUTION: Do not mix these bearing parts
> with any
> others as this will change the clearances.)
> Why is that important you ask? Good question. The outside of the
> hub
> should measure from 2.0015" to 2.0020". The inside diameter of the
> bearing
> that I have, measures 1.970". If I were to press that bearing on a
> hub
> with maximum outside dimension of 2.0020" there would be a.032"
> interference fit. Thats pretty tight and would reduce the axial
> clearance
> of the bearing by some amount. How much? I don't really know,
> however the
> cinnabar engineers have run tests on the various bearings with
> maximum and
> minimum dimensions for both the hub, knuckle and bearing and decided
> that
> in the worst case of each, an axial clearance of .095" is the
> minimum
> clearance that can be safely used.
> Cinnabars part number - 12351677
> Gateway's part number -
> Others to use in a pinch: (same bearings but not clearanced for our
> application) Use at your own risk!!
> Bower/BCA--------------------------- A-23
> CR -------------------------------------- BR-23
> J.C. Whitney------------------------- 38-0649-P
> New Departure---------------------- S-77
> Timken--------------------------------- 23 Specify .0095 axial
> clearance
> NAPA---------------------------------- Set-23
> Federal-------------------------------- A-23
> --------------------------------------------------
>
>
>

>
>
> >I need to get new bearings and seals for my 75 eleganza. Got them
> last
> >time from cinnabar. Thought I saw where someone had posted a NAPA#
> for
> >the proper front bearings. Anybody know if this is right?
> >Bill
>