Angular contact ball bearings can bear both radial and axial loads.Able to work at high speed.The larger the contact Angle, the higher the axial bearing capacity.High precision and high speed bearings are usually at a 15 degree contact Angle.Under the action of axial force, the contact Angle will increase.A single row angular contact ball bearing can only bear axial load in one direction. When bearing radial load, additional axial force will be caused.And only the axial displacement of the shaft or housing in one direction can be limited.If installed in pairs, make the outer ring of a pair of bearings opposite to each other, that is, the wide end faces the wide end face and the narrow end faces the narrow end face.This avoids additional axial forces and limits the shaft or housing to axial clearance in both directions.Angular contact ball bearing because the raceway of its inner and outer rings can have relative displacement on the horizontal axis, so it can bear both radial load and axial load -- combined load (single row angular contact ball bearing can only bear a single direction of axial load, so it is usually used in pairs).
The material of the cage is brass, synthetic resin and so on.
NSK bearing angular contact ball bearings are: type 7000C (covering = 15°), type 7000AC (covering = 25°) and type 7000B(covering = 40°).The locking port of the bearing is on the outer ring. Generally, the inner and outer rings cannot be separated. It can bear the combined radial and axial loads as well as the axial loads in one direction.The capacity to bear axial load is determined by the contact Angle. The larger the contact Angle, the higher the capacity to bear axial load.The bearing can limit the axial displacement of the shaft or housing in one direction.
The limit speed of contact ball bearing is high, it can bear radial load and axial load at the same time, but also can bear pure axial load, its axial load capacity is determined by the contact Angle, and increases with the increase of contact Angle.
Single row angular contact ball bearing can only bear one direction of the axial load, in the radial load, will cause additional axial force, must be applied to the corresponding reverse load, therefore, the bearing is generally used in pairs.Double row angular contact ball bearings can bear large radial load mainly radial joint load, axial and torque load, it can limit the axial displacement of the shaft or shell two-way, contact Angle is 30 degrees.
Pairs of mounted angular contact ball bearings can bear radial and axial bidirectional joint load mainly radial load, but also can bear pure radial load.The series configuration can only bear axial load in one direction, while the other two configurations can bear axial load in either direction.This type of bearing is generally selected and combined by the manufacturer in pairs and submitted to the user. After installation, the preload is too heavy, and the rings and steel balls are in the axial preload state, thus improving the stiffness and rotation accuracy of the whole group of bearings as a single support.
Main USES of angular contact ball bearings:
Single row angular contact ball bearing: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft
Double row angular contact ball bearings: oil pump, roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery