[Bell Historians]Bearings was Moseley St Mary
Peter Trotman
ptrotman at YGbpDmONYwC97yUt1Wm_EidrV2gMIYyawCVshMcfCNDMWQZCtzWarMqmhFAMFm3PAblk9H82gezAgK8K.yahoo.invalid
Thu May 22 16:56:55 BST 2008
That's exactly right. Also the internal diameter of rolling element
bearings used by the bellhangers/foundries and the diameter of the
matching gudgeon is probably significantly greater than the typical
plain bearing gudgeon.
Peter Trotman
On 5/22/08, Stephen Ivin <s.ivin at Ox9yUeqPBz2X0ujtRqkOIWfTEySvHfot6DNe8n7dByFjRd5mUZC_QehX_BADFp89X7TKbmL6lFFFhQGtABJx.yahoo.invalid> wrote:
[...]
>
> I'm not a current engineer (or really a current anything!) but I think
> the argument was that gudgeons running on plain bearings are (usually)
> supported much closer to the point of exit from the headstock - probably
> within half an inch or less, whereas the point of support in a ball
> bearing, not always obvious from the outside of the housing, can be an
> inch or even more, increasing the bending moment considerably.
>
> Steve
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