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Torque tube bearing assembly

  • US 6,821,084 B2
  • Filed: 12/11/2002
  • Issued: 11/23/2004
  • Est. Priority Date: 12/11/2002
  • Status: Expired due to Fees
First Claim
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1. A bearing assembly for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct of the engine, said torque tube connecting a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct, said bearing assembly comprising:

  • a bearing adapted for mounting on the torque tube having a spherical external engagement surface; and

    a housing having a flange adapted for mounting on the fan duct adjacent the access hole and an annular interior surface having an inner edge and an outer edge, said interior surface being sized and shaped for rotatably receiving the spherical external engagement surface of the bearing so the spherical engagement surface and the annular interior surface make contact along an annular contact area centered on a contact plane lying between said inner edge and said outer edge of the interior surface, said contact plane being tilted with respect to the flange at an angle greater than five degrees.

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