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Edmonton- Small lathe/milling work; Advice, insight, recommendation?
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<blockquote data-quote="John Conroy" data-source="post: 43825" data-attributes="member: 56"><p>Andrew, now that I look at your drawing more closely I see that the end of the shaft is going to be parted off anyway so the centering hole will be on the discarded part of the shaft. Press fit is a relative term that varies depending on need. To make the sun gear to armature contact area last, there needs to be zero clearance between them. The damage I see around the existing keyway is the result of clearance where there should be none. If easy disassembly is required then a light sliding fit should be the goal (durability will be compromised). If you can supply the sun gear and key for measuring and test fitting that type of fit can be achieved.</p><p></p><p>This job would require me to make a one off cutter for the snap ring grooves so a sample snap ring will be required also.</p><p></p><p>If you want to go ahead with it PM me and we can arrange details.</p></blockquote><p></p>
[QUOTE="John Conroy, post: 43825, member: 56"] Andrew, now that I look at your drawing more closely I see that the end of the shaft is going to be parted off anyway so the centering hole will be on the discarded part of the shaft. Press fit is a relative term that varies depending on need. To make the sun gear to armature contact area last, there needs to be zero clearance between them. The damage I see around the existing keyway is the result of clearance where there should be none. If easy disassembly is required then a light sliding fit should be the goal (durability will be compromised). If you can supply the sun gear and key for measuring and test fitting that type of fit can be achieved. This job would require me to make a one off cutter for the snap ring grooves so a sample snap ring will be required also. If you want to go ahead with it PM me and we can arrange details. [/QUOTE]
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Edmonton- Small lathe/milling work; Advice, insight, recommendation?
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