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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Installing ET92 Inner Roller Set on Mainshaft
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<blockquote data-quote="oexing" data-source="post: 148402" data-attributes="member: 1493"><p>I can imagine the Phils had afterthoughts about plain races walking in the case and finally grinding on the big end nut. In many engines from all brands you can expect some amount of walking bearings, depending on perfect fits from start. So the staking was most likely a safety operation. I am not so familiar with roller bearings of the type with rollers contained on inner race. Not often found here as I think handling is easier with rollers in outer race. One has to remember the times when Vincent bikes were produced and what was available then, so this must have had some meaning in the design of components . When I looked for imperial roller bearings some years ago I got the idea that they are hard to find with rollers in outer race plus lipped type. So this was not my choice and went for all metric with the homemade crank. One good argument was the o.d. of the modern bearing is 62 mm with 30 mm i.d. so this would be suitable in an engine overhaul for a new alu bush in the worn 63.5mm bore without weakening the case from boring oversize for a substantial bush towards original 63.5mm size. The mainshaft is 1 " standard and you could do a simple bush loctited on the mainshaft for 30 mm with the metric type with a lot higher load factor -and available in all sorts of types. But yes, I am a retired toolmaker waisting all my own time on playing with machine tools to my likings, no way can you charge a customer for all that time spent on his bike - unless he just wants it. </p><p> In these times it has become very difficult to find companies agreeing on that kind of job. Most of them got high output productions so no desire to do complicated machining at modest costs. I was thinking about Kiwis and Aussies to have the can-do attitude saved into this millennium , traditionally challenged by lengthy import supplies so you better try to do it by yourself. As can be seen attitudes to "dirty" work have become international in younger people who prefer "cool" jobs with high pay supposedly . So seeing this makes me feel really old and fallen out of time . Allright, there are exceptions I know who like to mess around with old motorbikes but it does not help in finding skilled mechanics in companies when you need them. So best you spend loads of cash into machinery and do it all to yourself . . . </p><p></p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 148402, member: 1493"] I can imagine the Phils had afterthoughts about plain races walking in the case and finally grinding on the big end nut. In many engines from all brands you can expect some amount of walking bearings, depending on perfect fits from start. So the staking was most likely a safety operation. I am not so familiar with roller bearings of the type with rollers contained on inner race. Not often found here as I think handling is easier with rollers in outer race. One has to remember the times when Vincent bikes were produced and what was available then, so this must have had some meaning in the design of components . When I looked for imperial roller bearings some years ago I got the idea that they are hard to find with rollers in outer race plus lipped type. So this was not my choice and went for all metric with the homemade crank. One good argument was the o.d. of the modern bearing is 62 mm with 30 mm i.d. so this would be suitable in an engine overhaul for a new alu bush in the worn 63.5mm bore without weakening the case from boring oversize for a substantial bush towards original 63.5mm size. The mainshaft is 1 " standard and you could do a simple bush loctited on the mainshaft for 30 mm with the metric type with a lot higher load factor -and available in all sorts of types. But yes, I am a retired toolmaker waisting all my own time on playing with machine tools to my likings, no way can you charge a customer for all that time spent on his bike - unless he just wants it. In these times it has become very difficult to find companies agreeing on that kind of job. Most of them got high output productions so no desire to do complicated machining at modest costs. I was thinking about Kiwis and Aussies to have the can-do attitude saved into this millennium , traditionally challenged by lengthy import supplies so you better try to do it by yourself. As can be seen attitudes to "dirty" work have become international in younger people who prefer "cool" jobs with high pay supposedly . So seeing this makes me feel really old and fallen out of time . Allright, there are exceptions I know who like to mess around with old motorbikes but it does not help in finding skilled mechanics in companies when you need them. So best you spend loads of cash into machinery and do it all to yourself . . . Vic [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Installing ET92 Inner Roller Set on Mainshaft
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