What is a shaft sleeve Read More »

The structure of linear motion ball bearing is equipped with a retainer in the outer ring, and the retainer is equipped with a plurality of steel balls, and the infinite circulation movement. The two ends of the retainer are fixed within the spring retainer ring, and a notch window is provided on th Read More »

the reinforcement inside the concrete member and allows the oil seal to maintain its shape and tension. Generally, the inner diameter of the skeleton oil seal in the free state is smaller than the axial diameter, that is, it has a certain amount of "interference". Therefore, when the oil seal is loa Read More »

1. The concept of fixture In the process of mechanical processing, in order to ensure the processing accuracy, fix the workpiece, so that it occupies a certain position to accept the processing or detection of the process equipment collectively referred to as the machine tool fixture, fixture for sh Read More »

The key of bearing tolerance grade is to determine the rotation accuracy of the shaft to the support point. Read More »