The Uses of different types of bearings

Bearing is a pivotal component in mechanical equipment. Its main function is to support the mechanical rotating body and to reduce the coefficient of friction of the mechanical load of the equipment in the transmission process.

Bearings are divided into: radial bearings and thrust bearings according to the bearing direction or nominal contact angle. According to the type of rolling body, they are divided into: ball bearings, roller bearings. According to the ability to adjust, divided into: spherical bearings, non-spherical bearings (rigid bearings). According to the number of columns of rolling body, divided into: single row bearing, double row bearing, multi-row bearing. According to the parts can be separated, divided into: separable bearings, non-separable bearings. In addition, there are classifications according to structure shape and size. This article mainly shares the characteristics, differences and corresponding uses of 10 common bearings.

1. Angular contact ball bearing contact angle between the collar and the ball, the standard contact angle of 15 °, 30 ° and 40 °, the greater the contact angle axial load capacity is also greater, the smaller the contact angle is more conducive to high-speed rotation, single row bearing can bear radial load and one-way axial load. Structure for the back of the combination of two single-row angular contact ball bearing common inner and outer ring, can withstand radial load and two-way axial load.

Angular contact ball bearing

Main use: single row: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft. Double row: oil pump, roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery.

2. Spherical ball bearing double rows of steel balls, outer ring raceway for the inner spherical type, so it can automatically adjust the shaft or shell due to deflection or different heart caused by the shaft incorrect, tapered hole bearings by using fasteners can be easily installed on the shaft, mainly to bear radial load.

Spherical ball bearing

Main use: woodworking machinery, textile machinery drive shaft, vertical with seat spherical bearing.

3. Spherical roller bearings in the spherical raceway outer ring and double raceway inner ring with spherical roller, according to the different internal structure, divided into R, RH, RHA and SR four types, because the outer ring raceway arc center and bearing center, with spherical performance, so can automatically adjust the shaft or shell deflection or different heart caused by the axis of the incorrect, can withstand radial load and two-way axial load.

The main use of spherical roller bearings: paper making machinery, speed reducing device, railroad vehicle axle, rolling mill gear box seat, rolling mill roller sub, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial reducer, vertical with seat spherical bearing.