[Healeys] spun bearings

[Oudesluys]

In general the rotating part of a bearing (on the axle shaft in this 
case) is a press fit while the stationary part (in the rear axle 
housing) is a push fit. Tolerances on bearings are quite tight, but the 
axle housing could be a different matter. Even when the outer race of 
the bearing is a bit on the loose side it should not spin in the axle 
housing. If it does it is worn and/or with debris inside. If a bearing 
has spun, it is often sufficient to replace the bearing and using some 
Locktide between outer race and housing. This will however make 
disassembly in the future more difficult.
Kees Oudesluijs
NL


  warthodson at aol.com schreef op 2-2-2015 om 0:26:
> One possible explanation for why the factory design included the 
> clamping of the bearing might be that they could not rely entirely on 
> the bearing manufacturer & the hub manufacturer to hold the tolerances 
> required for a proper press fit of the bearing. If the 
> bearing O.D. was a little under spec & the diameter of the recess in 
> the hub was a little over spec. the bearing would be free to move 
> about. Thus the clamping & the specification on the amount of clamping.
> Gary Hodson
> From: Steve Gerow steveg at abrazosdata.com <mailto:steveg at abrazosdata.com>
> Kees wrote:
> >>>
>
> Ball/needle/roller bearings can only spin when the there is debris
> inside the bearing from e.g. a broken cage, balls/needles/rollers, diff
> that block the bearing causing the outer cage to turn. This happens
> mainly because people drive there cars until the bearing starts to break
> up, well into or beyond the rumbling stage.
> <<<
> I don’t think it’s that absolute. In my case it was a year-old bearing 
> that spun with no apparent damage to the bearing other than having the 
> outside buffed to a high sheen. The operation remains perfectly smooth.
> Personally, I’m persuaded that the act of clamping the inside and 
> outside, per the manual, is preferable to shrinking or driving or 
> gluing the bearing in, leaving the spacer loose and hoping for the best.
>
>
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