spherical roller bearing

Introduction to spherical roller bearings has double-row rollers, the outer ring has 1 common spherical raceway, and the inner ring has 2 raceways and is inclined at an angle relative to the bearing axis. This ingenious structure makes it have automatic centering performance, so it is not easy to be affected by the angle of the shaft and the bearing box seat or the bending of the shaft. It is suitable for the installation error or the angle error caused by the deflection of the shaft. The bearing can not only bear radial load, but also can bear two-way axial load. Spherical roller bearings have cylindrical and conical inner holes. Conical taper holes are 1:30 and 1: 600.00g. This conical inner hole bearing is equipped with a set sleeve or a withdrawal sleeve. The conical inner hole self-aligning ball bearing can be easily and quickly assembled on the optical axis or stepped crankshaft. The models of spherical roller bearings are: spherical roller bearings (20000CC type); Tapered hole spherical roller bearings (20000CCK type); Spherical roller bearings (20000CC/W33 type); Tapered hole spherical roller bearings (20000CCK/W33 type); Spherical roller bearings mounted on the tightening sleeve (20000CCK H type); 6 kinds of spherical roller bearings mounted on the tightening sleeve (20000CCK/WH type). [1] The specific introduction of the broadcast spherical roller bearing has two rows of rollers, which mainly bear radial load and can also bear axial load in any direction. High radial load capacity, especially suitable for heavy load or vibration load, but can not bear pure axial load. This kind of bearing outer ring raceway is spherical, so its alignment performance is good, can compensate the coaxial 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 with the bearing axis, which has good self-aligning performance. When the shaft is bent or installed differently, the bearing can still be used normally. The self-aligning performance varies with the bearing size series. Generally, the allowable self-aligning angle is 1~2.5 degrees, and the load capacity of this type of bearing is relatively large, in addition to the radial load bearing can withstand the two-way role of the axial load, has a good impact resistance, in general, the spherical roller bearing allows the working speed is low. Spherical roller bearing Spherical roller bearing is divided into two different structures: symmetrical spherical roller and asymmetrical spherical roller according to the cross-sectional shape of the roller. Asymmetrical spherical roller bearing is an early product, mainly for mainframe maintenance service, while symmetrical spherical roller bearing is rarely used in the new design of mainframe. The internal structure has been comprehensively improved and optimized. Compared with the spherical roller bearing produced in the early stage, it can bear greater axial load, the operating temperature of this kind of bearing is relatively low, so it can meet the requirements of higher rotating speed. According to whether the inner ring has ribs or not and the different cages used, it can be divided into C- type and CA-type. The C- type bearing is characterized by the inner ring without ribs and using steel plate stamping cages. The CA-type Trein bearing is characterized by ribs on both sides of the inner ring and using vehicle-made solid cages. In order to improve the lubrication of the bearing, the user can provide the outer ring with a ring oil groove and three oil holes of the spherical roller bearing, with bearing rear code/W33 said. According to the requirements of users, spherical roller bearings with inner ring oil holes can also be supplied. In order to facilitate customers to load and unload and replace the bearings, spherical roller bearings with tapered inner holes can also be provided. The tapered inner holes are 1:12, and the rear code number is K. In order to meet the requirements of special users, bearings with tapered inner holes of 1:30 can also be provided, and the rear code number is K30. Bearings with tapered bores can be installed directly on the tapered journal with a lock nut, or the bearing can be installed on the cylindrical journal with the aid of a tightening sleeve or a withdrawal sleeve. In order to ensure that the bearing is running at high speed to prevent harmful slippage between the raceway and the roller due to centrifugal action, the bearing should bear a certain minimum radial load, the size can be estimated by the following formula