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<blockquote data-quote="John" data-source="post: 1133672" data-attributes="member: 175005">ebay item - The item was nearly 1mm undersized on the I/D to fit over the OMT front barrel so it had to be machined out to make a really really tight push fit.See the four holes on the cog - after machining out there was just enough of the holes left showing,&nbsp; the pic shows the 'flat' side of the cog but on the other side it has a 'U' shaped trough going all the way round - a piece of tape was put over the holes on the flat side, turned the OMT up vertical to reveal the 'U' trough,&nbsp; centred the cog wheel up to make it a true circulating wheel without any discrepancies and then poured epoxy resin all the way around and into the holes - once cured the next day the cog was rock solid.&nbsp; Due to the OMT using two 120mm 'Lazy Susan' bearing assemblies sandwiched together, the unit revolves with ease with no real pressure exerted on the cog fixing.The two 'Lazy Susans' were used because: 1, I had them. 2, They were more or less the right size.=================================================================================================================[ATTACH=full]144275[/ATTACH]</blockquote>

[QUOTE="John, post: 1133672, member: 175005"] ebay item - The item was nearly 1mm undersized on the I/D to fit over the OMT front barrel so it had to be machined out to make a really really tight push fit. See the four holes on the cog - after machining out there was just enough of the holes left showing, the pic shows the 'flat' side of the cog but on the other side it has a 'U' shaped trough going all the way round - a piece of tape was put over the holes on the flat side, turned the OMT up vertical to reveal the 'U' trough, centred the cog wheel up to make it a true circulating wheel without any discrepancies and then poured epoxy resin all the way around and into the holes - once cured the next day the cog was rock solid. Due to the OMT using two 120mm 'Lazy Susan' bearing assemblies sandwiched together, the unit revolves with ease with no real pressure exerted on the cog fixing. The two 'Lazy Susans' were used because: 1, I had them. 2, They were more or less the right size. ================================================================================================================= [ATTACH type="full"]144275[/ATTACH] [/QUOTE]

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