Abstract: A constant velocity universals joint accepts rotary input through its axle and is also steered by a thrust bearing. A ball member having outward projections passes rotary motion to a surrounding socket member having cooperating inward projections which slidingly engage the ball projections. Both types of projections rotate about respective mountings. As the socket member turns in response to a steering input and the ball member maintains its orientation, the respective cooperating projections rotate about their mountings and slide across one another. The ball member thus continues to propel the socket member while accommodating variable angularity therebetween.