System For Protecting a Rotatable Shaft of a Motor from Excessive Bending Moments
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United States of America Patent
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app pub date -
Aug 29, 2017
filing date -
Aug 19, 2011
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Abstract
A motor assembly that includes a motor having a motor casing, a rotatable shaft extending from said motor casing to a shaft length and a hub coupled to said rotatable shaft, the hub having a circumferential skid surface disposed immediately proximal to the motor casing and having a channel configured to seat a propeller, when a propeller is present, wherein a bending moment applied to the shaft through the hub results in the circumferential skid surface contacting said motor casing.
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