1. Servo CAM turntable rotation accuracy and repeat positioning accuracy than the traditional sleeving support high servo CAM turntable adopts no gap between the roller and CAM curve surface meshing, reverse clearance is small, indexing accuracy and repeat positioning accuracy is high. (The indexing accuracy is generally ≤±30 seconds, and the repeated positioning accuracy is generally the Angle error ≤±10 seconds). The slewing support is the gear meshing, the gear reverse clearance is large, so the repeated positioning accuracy error is large when the reciprocating rotation. 2. Servo CAM turntable life is longer than the traditional rotary support servo CAM turntable is rolling friction, so the friction is small, the loss of accuracy is small, and the service life is long. Because the gear return support is the meshing between the gears, it is the plane friction, so the wear is large, the precision loss is fast, and the service life is short. 3. Servo CAM turntable selection more convenient and flexible servo CAM turntable is a complete set of supply, the user can be rotated parts or tooling directly assembled on the turntable, shorten the design time and manufacturing time. The use of gear slewing support requires the manufacturer to design a set of mechanisms to fix the slewing support, reducer, servo motor, and adjust the meshing gap between the gears, so as to increase the workload of engineers and extend the manufacturing period.