Bearing is an important part of mechanical equipment.Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load in the process of transmission.
1 angular contact ball bearings
There is a contact Angle between the ring and the ball, and the standard contact Angle is 15°, 30° and 40°. The larger the contact Angle is, the greater the axial load capacity will be, while the smaller the contact Angle is, the more conducive to high-speed rotation. Single row bearings can withstand radial and one-way axial loads.Structurally, two single row angular contact ball bearings with a combination of back sides share inner and outer rings, which can bear radial and bidirectional axial loads.Single row: machine tool spindle, high frequency motor, combustion steam turbine, centrifugal separator, small car front wheel, differential pinion shaft.Double column: oil pump, Roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery.
2 Self-aligning ball bearings.Double row of steel balls, outer ring raceway is inner spherical type, so it can automatically adjust the axis center caused by the deflection of the shaft or shell or different center, tapered bearing can be conveniently installed on the shaft through the use of fasteners, mainly bear radial load.Main applications: woodworking machinery, textile machinery drive shaft, vertical belt seat self-aligning bearing.
3.Self-aligning roller bearing.In these bearings are of spherical raceway outer ring and double groove between the inner ring is equipped with spherical roller, according to the different internal structure, divided into R, RH, RHA and SR four type, because of outer ring raceway arc center and bearing center consistent, with self-aligning performance, thus can be automatically adjusted because of the shaft or shell buckling or axis deviation caused by different heart,Can bear radial load and bidirectional axial load.Main applications: papermaking machinery, reducer, axle of railway vehicle, gear box of rolling mill, roller table of rolling mill, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial reducer, vertical self-aligning bearing with seat.
4.Thrust self-aligning roller bearings.The spherical roller in this kind of SKF bearing is inclined to arrange, because the raceway surface of the seat ring is spherical, with aligning performance, so the shaft can be allowed to have a number of tilt, axial load capacity is very large, in the axial load can also bear a number of radial load, the use of oil lubrication.
Main applications: hydraulic generator, vertical motor, propeller shaft for ship, reducer for rolling screw of steel rolling mill, tower crane, coal mill, extrusion machine, forming machine.
