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
>