The SMA Rotating Case Motor is a compact direct drive solution eliminating the need for an overhung load adapter. The radial piston design makes the motor more tolerant to contamination than a bent axis motor and the high pressure seals protect the internal components against frac sand.
With keyed or splined shaft options and a wheel flange option, the motor can be configured to replace existing motor solutions and can be mounted in any orientation.
The case rotation is created by high pressure fluid fed into the galleries of the crankshaft, which is designed to be used as the motor mounting point.