1.Components of rolling bearings
Rolling bearings are composed of four parts: outer ring, inner ring, rolling elements and cage. That means the bearings have outer ring, inner ring, and rolling elements and cage, they can be defined as rolling bearings.
According to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings.
2. Rolling Bearing installation method
1) Paired installation: An installation method in which two sets of rolling bearings are installed on the same shaft end-to-end, which can be regarded as a whole when working. Bearings can be installed back to back, face to face or in series connection.
2) Combined installation: An installation method in which three or more rolling bearings are installed on the same shaft end-to-end, which can be regarded as a whole when working.
3) Back-to-back installation: The two outer ring large ends can be installed back to back.
4) Face-to-face installation: The two outer ring small ends can be installed face to face.
5) Series connection installation: It is a series installation where the outer ring small end is connected face to the large end face of the other outer ring.
6) Matching: Two sets of rolling bearings are chosen or manufactured according to predetermined characteristics (usually according to preload or clearance), and installed together according to the specified method.
7) Matching more bearing: Three or more rolling bearings are chosen or manufactured according to predetermined characteristics, usually according to preload or clearance, and installed together according to the specified method.
3. The function of rolling bearings
Support the rotating shaft and parts on the shaft, and maintain the normal working position and rotation accuracy of the shaft. The rolling bearing is easy to use and maintain, reliable in work, good starting performance, and high load capacity at medium speed. Compared with sliding bearings, rolling bearings have larger radial dimensions, poorer vibration damping capabilities, low service life at high speeds, and greater noise.
