Constant-velocity joint and image-forming device
AssigneeNtn Corporation
InventorsMasaaki Ohashi, Satoru Fukuzawa
Life of this patent
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Abstract
A constant-velocity joint includes an outer ring formed with an annular space therein having an opening at one end thereof. The annular space is defined by a radially outer wall and a radially inner wall. One of the radially inner and outer walls is formed with three axially extending track grooves circumferentially spaced apart from each other by 120 degrees. A cage is inserted in the annular space with one end thereof protruding from the opening of the annular space. A second shaft is provided on the one end of the cage. Balls are retained by the cage and adapted to roll in the track grooves. At least one of the outer ring and the cage is formed of a synthetic resin.
Claims20
A constant-velocity joint comprising an outer ring formed with an annular space therein having an opening at one end thereof, said annular space being defined by a radially outer wall and a radially inner wall, one of said radially outer wall and said radially inner wall being formed with three axially extending track grooves circumferentially spaced apart from each other by 120 degrees, a cage inserted in said annular space with one end thereof protruding from said opening of said annular space, a second shaft provided on said one end of said cage, and balls retained by said cage and adapted to roll in said track grooves, said outer ring being formed of a synthetic resin.
A constant-velocity joint comprising an outer ring formed with an annular space therein having an opening at one end thereof, said annular space being defined by a radially outer wall and a radially inner wall, one of said radially outer wall and said radially inner wall being formed with three axially extending track grooves circumferentially spaced apart from each other by 120 degrees, a cage inserted in said annular space with one end thereof protruding from said opening of said annular space, a second shaft provided on said one end of said cage, and balls retained by said cage and adapted to roll in said track grooves, wherein said cage and said second shaft are simultaneously formed of a synthetic resin so as to be integral with each other.
Dependencies are inferred from the claim text.