Electric actuator and vibration damping apparatus for drive apparatus

An electric actuator for use with a drive apparatus having a control shaft and a drive apparatus housing, the electric actuator comprising:

• a gear housing having a first side and a second side opposite the first side, wherein the first side is configured to be mounted to the drive apparatus housing;
• a gear train disposed in the gear housing and comprising a plurality of gears;
• a jack shaft comprising a first end and a second end opposite the first end, wherein the first end of the jack shaft is configured to rotatably mount at least one of the plurality of gears, and the second end includes threads configured to threadably connect the jack shaft to the drive apparatus housing;
• an electrical housing configured to be secured to the second side of the gear housing;
• an electric circuit disposed in the electrical housing;
• a motor housing configured to be secured to the gear housing;
• and
• an electric motor including a motor output shaft that is configured to extend out of the motor housing.

An electric actuator for use with a drive apparatus having a control shaft and a drive apparatus housing, the electric actuator comprising:

• a gear housing having a first side and a second side opposite the first side;
• a gear train disposed in the gear housing and comprising a plurality of gears;
• a mounting adapter having an inboard side for engaging the drive apparatus housing, and an outboard side, wherein the mounting adapter is connected to the drive apparatus housing by a single fastener;
• a jack shaft comprising a first end and a second end opposite the first end, wherein the first end of the jack shaft is configured to rotatably mount at least one of the plurality of gears, and the second end includes threads configured to threadably connect the jack shaft to the mounting adapter;
• a drive adapter configured to connect to an end of the control shaft at a location adjacent the outboard side of the mounting adapter;
• an electrical housing configured to be secured to the second side of the gear housing;
• an electric circuit disposed in the electrical housing;
• a motor housing configured to be secured to the gear housing;
• and
• an electric motor including a motor output shaft that is configured to extend out of the motor housing.