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Structural types and characteristics of spherical roller bearings

wallpapers News 2021-07-27
Spherical roller bearing
Spherical roller bearings have two rows of rollers, which mainly bear radial load, but can also bear axial load in any direction. With high radial load capacity, it is especially suitable for working under heavy load or vibration load, but it cannot bear pure axial load. The outer ring raceway of this type of bearing is spherical, so its alignment performance is good, and it can compensate for the concentricity error.
Self-aligning performance of spherical roller bearings
Spherical roller bearings have two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways inclined to a certain angle with the bearing axis. It has good self-aligning performance. When the shaft is stressed The bearing can still be used normally when bent or installed out of the center. The alignment varies with the bearing size series. Generally, the allowable alignment angle is 1~2.5 degrees. This type of bearing has a relatively large load capacity, except for the radial load. The outer bearing can also withstand the axial load acting in both directions and has good impact resistance. Generally speaking, the allowable working speed of the spherical roller bearing is relatively low.
Structural types and characteristics of spherical roller bearings
Spherical roller bearings are divided into symmetrical spherical rollers and asymmetrical spherical rollers according to the cross-sectional shape of the rollers. Asymmetrical spherical roller bearings are early products, mainly for maintenance services for the main engine, and the new design of the main engine Symmetrical spherical roller bearings are rarely used. The internal structure has undergone a comprehensive improvement design and parameter optimization. Compared with the earlier produced spherical roller bearings, it can withstand greater axial load. The operating temperature of this type of bearing is low, so it can meet the requirements of higher speed. According to whether the inner ring has ribs and the cage used, it can be divided into C type and CA type. The characteristics of C-type bearings are that the inner ring has no ribs and the use of steel plates. Stamping cage, CA type Teruien bearing is characterized by ribs on both sides of the inner ring and the use of a car-made solid cage.


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