SYSTEMS AND METHODS FOR OIL MAINTENANCE IN GEARBOXES FOR eVTOL AIRCRAFT

A motor assembly for a propulsion system, the motor assembly including a motor housing; a rotor; a power inverter; a main shaft; wherein the main shaft extends through the rotor; and a fluid distribution system including a fluid reservoir; a pump configured to distribute a fluid to a component of the motor assembly; and a filter having a circumferential side, wherein the filter is configured to filter the fluid through the circumferential side, wherein the filter is located adjacent to the main shaft.