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Bearing assembly

  • US 5,261,750 A
  • Filed: 05/08/1992
  • Issued: 11/16/1993
  • Est. Priority Date: 05/10/1991
  • Status: Expired due to Term
First Claim
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1. A bearing assembly for supporting in a gearbox housing (48) a gearbox shaft (10) which is subject to bending forces and able to absorb axial forces, the bearing assembly having:

  • (i) at least one radial cylindrical roller bearing (18), whose inner race (16) is supported radially and axially on the shaft (10) and whose outer race (58) is supported radially in the gearbox housing (48);

    (ii) a bearing housing (40) supported by the gearbox housing (48);

    (iii) attachment means (50) for attaching the bearing housing (40) to the gearbox housing (48);

    (iv) two thrust bearings arranged to either side of the bearing housing (40), where the thrust bearing facing the radial cylindrical roller bearing (18) is supported in the axial direction by the inner race (16) of the radial cylindrical roller bearing (18); and

    (v) fixation means for securing the radial cylindrical roller bearing (18) and the thrust bearings against axial movement to the gearbox shaft (10);

    characterized in that(a) the thrust bearings are axial cylindrical roller thrust bearings (22,

         24); and

    (b) the bearing housing (40) is flexible so that at least the portion of the bearing housing(40) that supports the cylindrical roller thrust bearings (22,

         24) conforms to the inclination of the gearbox shaft (10) during deflection of the shaft.

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