Left and right hand bi-direction ball screw

A ball screw is a transmission mechanical component in which a steel ball moves between the nut and the screw, which converts the sliding contact of the traditional screw into a rolling contact, and then converts the rotation of the steel ball in the nut into a linear motion. The ball screw has the characteristics of high positioning accuracy, long life, low pollution, high-speed forward and reverse transmission and conversion transmission. Because of the above characteristics, the ball screw has become the positioning and measurement system of the precision technology industry and the precision machinery industry. One of the important components on.

Due to the difference in manufacturing accuracy and material uniformity, even the same batch of bearings of the same material and size, used under the same working conditions, will have different life spans. If the statistical life is 1 unit, the longest relative life is 4 units, the shortest is 0.1-0.2 units, and the ratio of the longest to the shortest life is 20-40 times. 90% of the bearings do not produce pitting corrosion, the number of revolutions or hours experienced is called the bearing rating life.