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 the concentricity error.
There are two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways inclined at an angle to the bearing axis. It has good alignment performance. When the shaft is bent or installed out of center When the bearing can still be used normally, the alignment varies with the bearing size series. Generally, the allowable alignment angle is 1 to 2.5 degrees. This type of bearing has a relatively large load capacity. In addition to the radial load, the bearing can also withstand The double-acting axial load has better impact resistance. Generally speaking, the allowable working speed of spherical roller bearings is lower.
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 It 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 car-made solid cage.

Spherical roller bearings are divided into: cylindrical bore and conical bore. Installed on the matching adapter sleeve, it becomes the post code K+H type and K30+H type bearing. This kind of bearing can be installed on an optical shaft without a shaft shoulder, and is suitable for occasions where the bearing needs to be frequently installed and removed. In order to improve the lubrication performance of the bearing, there is an annular oil groove in the outer ring of the bearing and three evenly distributed oil holes are drilled, and the rear code is W33.