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Double Bearing Assembly for Rotating Shaft

  • US 20120144939A1
  • Filed: 12/13/2010
  • Published: 06/14/2012
  • Est. Priority Date: 12/13/2010
  • Status: Abandoned Application
First Claim
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1. A double bearing assembly for supporting a shaft within a bore of a housing, the shaft being rotatable about a central axis, the bearing assembly comprising:

  • first and second inner race members mounted on the shaft so as to be spaced apart along the axis, each inner race member having opposing axial ends and an outer raceway surface with a radially-outwardly extending shoulder section proximal to one axial end, the two inner race members being arranged such that the outer shoulder surface section of each inner race member generally faces the shoulder surface section of the other inner race member;

    first and second outer race members disposed within the housing so as to be axially displaceable within the bore and disposed generally about a corresponding one of the first and second inner race members, each outer race member having opposing axial ends and an inner raceway surface with a radially-inwardly extending shoulder section proximal to one axial end, the two outer race members being arranged such that the inner shoulder surface section of each outer race member faces generally away from the shoulder surface section of the other outer race member;

    first and second sets of rolling elements, the first set of rolling elements being disposed between the first inner and outer race members to provide a first bearing and the second set of rolling elements being disposed between the second inner and outer race members to provide a second bearing; and

    at least one biasing member configured to generally bias one of the first and second outer race members generally axially so as to retain the proximal one of the first and second sets of rolling elements sandwiched between the inner shoulder surface section of the one outer race member and the outer shoulder surface section of the corresponding inner race member.

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