Quote:
Originally Posted by EricH
Any 2 mating gears should be the same width--not doing that increases the stress in the wider gear.
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Is that strictly correct? I would say that doing so changes the stress distribution (because the non-meshing parts of the gear teeth will resist bending). While some stresses may well be
locally slightly higher than in the same-width case (I'm thinking right at the edge of the meshing tooth), on balance, the amount of stress at a given point in the wider gear ought to be lower, thanks to the contribution of the extra material.