Patent ID: 6736729
Filing Date: 2004-05-18
Classification: F16D,Y10S,Y10T

Abstract:
A constant velocity ball joint, 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, the texture surfaces include microgrooves, the microgrooves comprise a plurality of dimples, the dimples being hexagonal shaped or pentagonal shaped.