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<blockquote data-quote="Magnetoman" data-source="post: 150036" data-attributes="member: 2806"><p>OK, we may be addressing different things, so I'll try again. My interest is in understanding how it might be possible to increase the gap at the edge of the spoke flange to allow spokes to be installed when the flange is totally tightened against the drum. I learned from something I read here or elsewhere that shims are available to go between the flange and drum, which would be an easier solution than making a jig and bending the flanges. But, is such a shim a reasonable solution, or is it a bodge? To address that question:</p><p></p><p>The next photograph shows the hub and axle, showing that the inner race of the bearing presses directly against the brake plate on one side and against the raised shoulder of the hollow axle on the other side (plus shims).</p><p></p><p>[ATTACH=full]46536[/ATTACH]</p><p></p><p>This is seen better in the next photograph, where the gap is where the brake plate goes.</p><p></p><p>[ATTACH=full]46537[/ATTACH]</p><p></p><p>Tightening the H13 nut on the bottom in this photograph firmly clamps the brake plate against the inner race. Aside from the H17 shims (or pages cut from K17), the length of the hollow axle determines what thickness everything between the two H13 nuts can have. If someone wanted to use something thicker, like a badly-made reproduction brake plate that was thicker than the original <em>outboard</em> of the bearing, the only way that would be possible would be if the extra thickness could be compensated for by removing shims, or by having the H13 nuts a few turns less on the axle, or both.</p><p></p><p>Reusing a previous drawing, the red spacer would increase the overall thickness of everything between the bearings. Since this is <em>inboard</em> of the bearings the only possibility for compensation would be the H17 shims that are between the inner race and the shoulders of the axle.</p><p></p><p>[ATTACH=full]46538[/ATTACH]</p><p></p><p>Or, have it got it wrong?</p></blockquote><p></p>
[QUOTE="Magnetoman, post: 150036, member: 2806"] OK, we may be addressing different things, so I'll try again. My interest is in understanding how it might be possible to increase the gap at the edge of the spoke flange to allow spokes to be installed when the flange is totally tightened against the drum. I learned from something I read here or elsewhere that shims are available to go between the flange and drum, which would be an easier solution than making a jig and bending the flanges. But, is such a shim a reasonable solution, or is it a bodge? To address that question: The next photograph shows the hub and axle, showing that the inner race of the bearing presses directly against the brake plate on one side and against the raised shoulder of the hollow axle on the other side (plus shims). [ATTACH type="full"]46536[/ATTACH] This is seen better in the next photograph, where the gap is where the brake plate goes. [ATTACH type="full"]46537[/ATTACH] Tightening the H13 nut on the bottom in this photograph firmly clamps the brake plate against the inner race. Aside from the H17 shims (or pages cut from K17), the length of the hollow axle determines what thickness everything between the two H13 nuts can have. If someone wanted to use something thicker, like a badly-made reproduction brake plate that was thicker than the original [I]outboard[/I] of the bearing, the only way that would be possible would be if the extra thickness could be compensated for by removing shims, or by having the H13 nuts a few turns less on the axle, or both. Reusing a previous drawing, the red spacer would increase the overall thickness of everything between the bearings. Since this is [I]inboard[/I] of the bearings the only possibility for compensation would be the H17 shims that are between the inner race and the shoulders of the axle. [ATTACH type="full"]46538[/ATTACH] Or, have it got it wrong? [/QUOTE]
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