Product features: stable transmission, compact installation structure.
Additional application: small transmission torque, large lead, special-shaped hole installation and other occasions (large diameter ratio can reach about 1.2).
1. High transmission efficiency
The transmission efficiency of the ball screw pair is 85% - 95%, which is 2-4 times of that of the traditional sliding screw pair, as shown in Fig. 1
The torque can get larger thrust force, and it can also be converted from linear motion to rotary motion (reversible motion) 。
2. The movement is smooth
The ball screw pair is a point contact rolling motion, which has low friction resistance, high sensitivity, no vibration when starting and no crawling at low speed. Therefore, the feed can be controlled precisely.
The temperature rise of ball screw pair is small in motion, and it can pre tighten and clean the axial clearance and pre stretch the screw to compensate the thermal elongation, so it can obtain high positioning accuracy and repeated positioning accuracy.
4. High solid
The rolling contact of steel ball is hardened (hrc58-63) and precision ground. It has high fatigue, low rolling friction and high service life and precision retention
5. Good synchronization
Because of its smooth motion, sensitive response, no block and no slip, several identical ball screw pairs can drive several identical components or devices at the same time, which can obtain better synchronous motion.
6. High reliability
Compared with other transmission machinery and hydraulic transmission, the failure rate of ball screw pair is lower, and the maintenance is relatively simple. Only general lubrication and dust prevention are needed. It can work without lubrication.