First of all, check the matching instrument with the bearing inner and outer groove diameter standard parts. Because the matching instrument is measured by the two-point comparison method, so the calibration instrument needs two standard parts, namely, the inner ring, the outer ring groove diameter Read More »

Rolling bearings are composed of four parts: outer ring, inner ring, rolling body and cage. Its structure is shown in Figure 1-1 (see appendix). Usually, the outer ring of the rolling bearing is installed in the frame hole and fixed, the inner ring is installed on the shaft and rotates together with Read More »

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 »