Patent ID: 6306044
Filing Date: 2001-10-23
Classification: F16D

Abstract:
A constant velocity universal ball joint of the fixed joint type, comprising:an outer joint part with curved outer ball tracks extending longitudinally inside,an inner joint part with curved inner ball tracks extending longitudinally outside,a plurality of torque transmitting balls which are each guided in outer and inner ball tracks associated with one another,a ball cage with a plurality of cage windows respectively receiving said balls, wherein the tangential planes at points of contact of said balls with said outer and inner ball tracks, said points of contact for torque transmitting purposes define a spatial control angle (K) and wherein the superposition of the momentary local relative speeds in said points of contact between said balls and said outer and inner ball tracks defines a rolling error (.DELTA.v) and said tracks are designed such that when the joint is in an articulated condition, minimum control angles (K) coincide with regions of minimum rolling errors (.DELTA.v).