1. Small driving torque
When the ball screw mechanism is running, the ball rolls along the helical raceway formed by the screw and the nut, and the motion resistance is extremely small, the driving torque is only less than 1/3 of the threaded screw mechanism, and only a small driving power is required.
2. Movement is reversible
The ball screw mechanism can not only convert the rotary motion of the screw into the linear motion of the nut (and the load slider), but also can easily convert the linear motion of the nut into the rotary motion of the screw. Therefore, when the lead screw is used in the vertical direction, a braking device should be added.
3. High precision
The ball screw mechanism has undergone strict control in processing, assembly, testing and other links, and is a high-precision transmission mechanism. With less heat during operation, it can achieve high transmission accuracy and accurately position the load.
4. Can micro feed
Because the balls in the ball screw mechanism are in rolling motion mode, the starting torque is extremely small, and there is no low-speed creep or creeping phenomenon that is easy to occur in sliding motion, so high-precision micro-feeding can be realized, and the minimum feed rate can reach 0.1 pm
