Quote:
Originally Posted by GeeTwo
Every bearing is (or should be) mounted in a block, not a plate. There is no need for a bearing where the main drive shaft passes through the inner plate, as it is supported by a bearing in the motor mount plate at one end and a bearing block screwed to the outer plate at the other end.
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Quote:
Originally Posted by Chris is me
You don't need a bearing there (and having more than two bearings per shaft can be a pretty bad idea in general), but I don't see how this has much of anything to do with whether or not an integral versus separable gearbox is a good idea.
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I was mostly addressing the point that it:
Quote:
Originally Posted by Chris is me
..relies on your sheet metal shop's hole tolerances being as good as your milled plate tolerances.
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That is, using adjustable bearing blocks allows compensation for coarser hole placement tolerances in the chassis plates.