Patent ID: 9005040
Filing Date: 2015-04-14
Classification: F16D,Y10S

Abstract:
1. A joint in the form of a counter track joint, comprising: a joint outer part with first outer ball tracks and second outer ball tracks; a joint inner part with first inner ball tracks and second inner ball tracks; wherein first outer ball tracks form first track pairs with first inner ball tracks, and wherein second outer ball tracks form second track pairs with second inner ball tracks; torque-transmitting balls which are guided in the first track pairs and second track pairs; and a ball cage with cage windows distributed around the circumference; wherein first aperture angles are respectively formed between tangents to contact points of a ball with the first outer ball track and with the first inner ball track, and second aperture angles are respectively formed between tangents to contact points between a ball with the second outer ball track and with the second inner ball track, wherein the first aperture angles of the first track pairs open towards a first side of the joint, and the second aperture angles of the second track pairs open towards a second side of the joint, wherein joint outer part is radially spaced outwardly from the ball cage and the joint inner part is radially space inwardly from the ball cage permitting relative axial displacement of the joint inner part with respect to the joint outer part, wherein a range of the axial displacement is divided into a first end range, a central working range and a second end range, wherein, when the joint is straight, the first track pairs and second track pairs have, in the range of the axial displacement, first aperture angles and second aperture angles which are opposed but always equal in absolute value, wherein the first aperture angles and second aperture angles vary jointly over the entire range of the axial displacement, and the first aperture angles and second aperture angles are largest in the central working range.