Spherical roller bearings

      Spherical roller bearings have two rows of rollers, which mainly bear radial load, and can also bear axial load in any direction. Withstand pure axial loads. The outer ring raceway of this type of bearing is spherical, so it has good self-aligning performance and can compensate for coaxiality errors. There are two rows of symmetrical spherical rollers, the outer ring has a shared spherical raceway, and the inner ring has two The raceway of the bearing axis inclined at an angle has good self-aligning performance, and the bearing can still be used normally when the shaft is bent under force or the installation is not concentric.

      Alignment varies with bearing size series. Generally, the allowable alignment angle is 1~2.5 degrees. This type of bearing has a large load capacity. In addition to radial load, the bearing can also withstand axial load acting in both directions. It has good impact resistance, and generally speaking, the allowable working speed of spherical roller bearings is low.

      Spherical roller bearings are divided into two different structures: symmetrical spherical rollers and asymmetric spherical rollers according to the cross-sectional shape of the rollers. Asymmetric spherical roller bearings are early products, mainly for main engine maintenance services, newly designed main engine Symmetrical spherical roller bearings are rarely used at this time. The internal structure has been comprehensively improved and designed and parameters are optimized. Compared with the early production spherical roller bearings, it can withstand greater axial load. The operating temperature of this bearing is lower, so it can meet the requirements of higher speed.

      The bearing itself can be adjusted, the angle alignment error between the inner and outer rings, under normal load and working conditions, when the inner ring rotates, the misalignment values ??given in the table below are allowed. Whether this given value can be fully achieved depends on the design of the bearing configuration and the type of sealing. under extremely high stress conditions.