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Constant velocity joint and method of making same

  • US 20040005931A1
  • Filed: 07/03/2002
  • Published: 01/08/2004
  • Est. Priority Date: 07/03/2002
  • Status: Active Grant
First Claim
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1. A constant velocity ball joint having improved performance, comprising:

  • an outer joint part to be connected to a first drive part, and provided with an inner aperture in which there are formed outer ball tracks;

    an inner joint part to be connected to a second drive part, and which forms an inner hub member which is positioned in the inner aperture of the outer joint part and on which there are formed inner ball tracks; and

    torque transmitting balls guided in the outer and inner ball tracks;

    a ball cage arranged between the outer joint part and the inner joint part and which comprises circumferentially distributed cage windows in which the balls are held in a common plane;

    wherein one or more of the outer ball tracks, the inner ball tracks, or the balls have textured surfaces to increase lubrication of the joint and provide said improved performance.

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