Variable velocity joints transmit rotary motion between shafts at changing angles.
A prevalent type is the cross or spider universal joint.
This joint features two Y-shaped yokes oriented perpendicularly.
A central component, identified as a cross or spider, connects these yokes.
The cross incorporates needle bearings at its extremities, seating within the yoke arms to facilitate smooth rotation and adaptability.
Slip joints and center bearings fulfill distinct roles within the driveline; flexible rings are unrelated to this joint configuration.
Consequently, the accurate designation is cross or spider.