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General Chat (Vincent Related)
Jig to Hold Head in Lathe
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<blockquote data-quote="oexing" data-source="post: 153403" data-attributes="member: 1493"><p>Greg, you seem to have been lucky most of times with honing the lower links as Norman has found quite a few oversize for ball bearings. I wonder what sort of Sunnen your mechanic got for this job ? As both sides of the links are very far apart the hone needs very long stones for staying in both bores all the time during honing operation . My guess the link has to be turned around quite often for having both sides at same size in the end. So this must be a very special Sunnen type and I think you get even a new a Hunger reamer for 32mm easier and less expensive than this Sunnen. No photo available of that hone ?? </p><p> Vincent Speet went to 33 mm for the needle bearing, a whole millimeter more is a bit much for a reamer. In that case I´d have each bore on the mill plus boring head, roughly centered each time and keep some undersize left. So for perfect alignment and size I´d do the reaming in last stage, knowing that alignment is safely achieved. Piloted reamers are exactly the right tool for aligning bearing seats wide apart. And yes, my choice would be needles like Vincent´s idea - sealing the lot is another matter. </p><p></p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 153403, member: 1493"] Greg, you seem to have been lucky most of times with honing the lower links as Norman has found quite a few oversize for ball bearings. I wonder what sort of Sunnen your mechanic got for this job ? As both sides of the links are very far apart the hone needs very long stones for staying in both bores all the time during honing operation . My guess the link has to be turned around quite often for having both sides at same size in the end. So this must be a very special Sunnen type and I think you get even a new a Hunger reamer for 32mm easier and less expensive than this Sunnen. No photo available of that hone ?? Vincent Speet went to 33 mm for the needle bearing, a whole millimeter more is a bit much for a reamer. In that case I´d have each bore on the mill plus boring head, roughly centered each time and keep some undersize left. So for perfect alignment and size I´d do the reaming in last stage, knowing that alignment is safely achieved. Piloted reamers are exactly the right tool for aligning bearing seats wide apart. And yes, my choice would be needles like Vincent´s idea - sealing the lot is another matter. Vic [/QUOTE]
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Jig to Hold Head in Lathe
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