As we all know, the bearing is a pivotal part of mechanical equipment. Its main function is to support the mechanical rotating body, used to reduce the mechanical load friction coefficient of equipment in the transmission process. Bearing according to the bearing direction or nominal contact angle, divided into centripetal bearings and thrust bearings.

First, angular contact ball bearings

　　Between the collar and the ball have contact angle, standard contact angle for 15 °, 30 ° and 40 °, the larger the contact angle axial load capacity is also the greater, the smaller the contact angle is more conducive to high-speed rotation, single row bearings can withstand radial loads and unidirectional axial loads. Structure for the back combination of two single row angular contact ball bearings share the inner ring and outer ring, can withstand radial load and bi-directional axial load.

　　Angular contact ball bearing

　　Angular contact ball bearing single row is mainly used in machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft. Double rows are used in oil pumps, Roots blowers, air compressors, all kinds of transmissions, fuel injection pumps, printing machinery.

Second, self-aligning ball bearings

　　Double rows of steel balls, the outer ring raceway for the inner spherical type, so can automatically adjust due to the shaft or shell of the deflection or different centrifugal caused by the axis of the incorrect, tapered hole bearings through the use of fasteners can be conveniently mounted on the shaft, mainly to withstand radial loads. Mainly used in woodworking machinery, textile machinery drive shaft, vertical with seat spherical roller bearings.

Third, spherical roller bearings

　　This kind of bearing in the spherical raceway outer ring and double raceway inner ring is equipped with spherical roller, according to the internal structure of different, divided into R, RH, RHA and SR four types, because the outer ring raceway arc center and bearing center, has the performance of self-aligning, so it can be automatically adjusted due to the axis or shell of the deflection or different heart caused by the axis is not correct, can withstand radial loads and bi-directional axial loads.

　　Spherical roller bearings are mainly used in paper making machinery, deceleration devices, railroad vehicle axles, rolling mill gear box seat, rolling mill rollers, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial speed reducer, vertical housed spherical roller bearings.