Importance

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Abstract

Electromotive drive used with an electric motor having a rotor with a motor shaft in first and second bearings and a working shaft in third and fourth bearings. The drive includes a shaft coupling for joining the motor and working shafts to ensure transmission of torque and radial force from the motor shaft to the working shaft, centering the motor and working shafts, not transmitting any axial force and compensating for any misalignment of the motor and working shafts; a coupling-contiguous end shield; and a coupling-contiguous ball bearing having an outer ring, wherein the motor shaft is mounted axially by means of the ball bearing, and the outer ring of the ball bearing is not fixed radially to the end shield, so that there is no redundancy despite double mounting of the motor shaft to the first and second bearings and the working shaft to the third and fourth bearings.

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First Claim