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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Quill
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<blockquote data-quote="oexing" data-source="post: 146910" data-attributes="member: 1493"><p>Nothing exotic about lipped roller bearings, I did just that with metric types in the HRD. A plain outer race is pure silliness and we all know what that does ! The problem in the times of Vincent production was possibly the non-availability of lipped outer races in imperial sizes ?? Lipped outer roller races are standard in many engines and I like them a lot for ease of assembly , no string magic around rollers with the original setup for slipping the lot into non-chamfered outers. </p><p> As the crank is pretty wide I control lateral position between lipped roller bearings on the drive side, with a real seal in between bearings. The outmost bearing has a plain inner race and the lip is either an extra part from FAG for roller bearings or you do a special with extra wide faces for all the ESA spring side load to spread on more area to prevent fast wear on the inner race as is seen on standard sets. </p><p> The timing side got lipped roller bearings as well, only the smaller outer bearing is slipped onto the shaft from outside. Assembly is a bit more interesting as I got all rollers in outer races so you have to slip the oil pump scroll onto the shaft while putting the timing side crank case onto the rest. The scroll is bigger diameter than the i.d. with rollers in outer race, that is why. The scroll has to be dropped into that space before you drop in the big main bearing. Anyway, no walking plain outer races with all typical consequences .</p><p></p><p> Vic[ATTACH=full]45422[/ATTACH]</p><p></p><p></p><p>[ATTACH=full]45423[/ATTACH]</p><p></p><p></p><p>Timing side pump scroll between bearings:</p><p>[ATTACH=full]45424[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 146910, member: 1493"] Nothing exotic about lipped roller bearings, I did just that with metric types in the HRD. A plain outer race is pure silliness and we all know what that does ! The problem in the times of Vincent production was possibly the non-availability of lipped outer races in imperial sizes ?? Lipped outer roller races are standard in many engines and I like them a lot for ease of assembly , no string magic around rollers with the original setup for slipping the lot into non-chamfered outers. As the crank is pretty wide I control lateral position between lipped roller bearings on the drive side, with a real seal in between bearings. The outmost bearing has a plain inner race and the lip is either an extra part from FAG for roller bearings or you do a special with extra wide faces for all the ESA spring side load to spread on more area to prevent fast wear on the inner race as is seen on standard sets. The timing side got lipped roller bearings as well, only the smaller outer bearing is slipped onto the shaft from outside. Assembly is a bit more interesting as I got all rollers in outer races so you have to slip the oil pump scroll onto the shaft while putting the timing side crank case onto the rest. The scroll is bigger diameter than the i.d. with rollers in outer race, that is why. The scroll has to be dropped into that space before you drop in the big main bearing. Anyway, no walking plain outer races with all typical consequences . Vic[ATTACH type="full"]45422[/ATTACH] [ATTACH type="full"]45423[/ATTACH] Timing side pump scroll between bearings: [ATTACH type="full"]45424[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Quill
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