Drive shaft for motor

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 3/221 (2006.01) E21B 4/00 (2006.01) F16C 3/02 (2006.01)

Patent

CA 2541339

An improved drive shaft for a motor having a central shaft, end housings, a ball and socket engagement to facilitate omni-directional movement between the central shaft and the end housings and drive keys to transmit torque between the central shaft and end housings with each end housing having planar drive key contact faces. The improvement lies in the drive keys, each of the drive keys having a shaft contact surface formed as a radius from a centre point and a planar housing contact surface longer than the drive key contact face of the end housing that the housing contact surface engages.

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