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why not start making centerlock cogs?
We've discussed this before. The centerlock spline doesn't have any interference, because that would require a puller to get them off. As a result, they will turn back and forth on load reversal, which will trash soft aluminium hub shell pretty quickly. Brakes don't experience a lot of load reversal, fixed sprockets do. To get a splined interface to tolerate load reversal without fretting, it needs to be a flank centred interference fit with enough interference to prevent the pressure on the unloaded flank from dropping below zero. It would be possible to design a splined sprocket mounting system for bi-directional drive, but it would end up being expensive and an even bigger PITA to swap than 6-bolt, so a bit pointless.
gbj_tester-
seems sarcasm doesn't come across that well through letters..
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To get a splined interface to tolerate load reversal without fretting, it needs to be a flank centred interference fit with enough interference to prevent the pressure on the unloaded flank from dropping below zero.
How have White Industries overcome this?
Jaap
Scilly.Suffolk
why not start making centerlock cogs?