Patent ID: 8899916

Claim:
A fan drive gear system for a gas turbine engine, comprising: a torque frame having an arm extending therefrom, the arm providing an axis; a journal bearing mounted on the arm and having an outer circumferential surface; a planet gear supported on the journal bearing for rotation about a rotational axis which substantially aligns with and is parallel to the axis of the arm; a sun gear located radially inward from and intermeshing with planet gear, the sun gear coupled to a low pressure shaft of the gas turbine engine; and a ring gear arranged about and intermeshing with the planet gear, the ring gear coupled to a fan shaft of the gas turbine engine; wherein when the fan drive gear system is in an unloaded condition the outer circumferential surface of the journal bearing is disposed at an angle that is non-parallel with respect to the axis of the arm, and wherein when the fan drive gear system is in a loaded condition the outer circumferential surface of the journal bearing is disposed substantially parallel with respect to the axis of the arm.