Push pin bearing mechanism for actuators

An automatic temperature balanced actuator (ABA) assembly comprising:

• a motor responsive to a control signal that initiates motor movement, wherein the control signal is responsive to a differential temperature and wherein the differential temperature characterizes temperature characteristics of the automatic temperature balanced actuator assembly;
• a push pin bearing mechanism comprising:
• a motor gear capable of providing a rotation movement responsive to the motor movement;
• a coupling gear coupled to the motor gear in order to transfer the rotational movement from the motor gear to the coupling gear;
• a bearing assembly, the bearing assembly including:
• an upper plate;
• a lower plate;
• a middle plate situated between the upper plate and the lower plate and retaining a plurality of bearings;
• and
• the upper plate and the middle plate capable of rotating with the coupling gear while the lower plate and a push pin are stationary with respect to a manifold pin when the push pin and the manifold pin are in contact with each other;
• a tube pressed fixed onto the coupling gear;
• and
• the push pin, wherein the push pin is inserted to the bearing assembly and fixed onto the tube and the push pin moves in a linear direction responsive to the rotational movement of the coupling gear, and the bearing assembly prevents the rotational movement from being transferred to the push pin when the push pin is in contact with the manifold pin.