Quote:
Originally Posted by Tyler2517
They use a pair of needle bearings when the bottom needle bearing sits in the co-axle. The thrust bearing is there to stop the top of the miter gears from contacting bottom of the co-axil during operation and to insure that the miter has a clean contact with the outer miter gear. -top miter
The bottom miter gear and its thrust bearing is there to deal with the axial loads that are produced by the miter gears. Thus increasing mechanical efficacy and allowing the module to run for long periods of time with out damage. (long ie a season)
The idea of the ceramic shafts do not sounds like the best idea hey seem like they might shatter under heavy impact. my two cents.
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I understand the need for the top thrust bearing as the needle bearing has no inner race to ride on, but for the lower miter gears to be useful it would have to be redistributing a force which would otherwise break the inner race out of the flanged ball bearing in the side plate. I doubt the axial loads produced by the miter gears are great enough to do that, but I really have no feel for either what will break the ball bearing or how much force the miter gear would be applying to it, hence calculations.
Quote:
Originally Posted by asid61
Those are 6061 shafts. They might not hold up to high loads. Plus, you would have to key them yourself.
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As for the shaft, the coating looks similar to anodizing and has no chance of shattering, it will bend with the shaft, can be filed off etc. These (in 1/2 in dia) are the go to shafts on MOE and are used in everything from drive shafts to intake rollers I don't think they would have a strength problem and they already need to key the shafts they buy now.