Like other bearings, angular contact ball bearings are also have lots of structures, single row angular direction, While double row angular contact ball bearings in DB or DF combination and four-point contact ball bearings can accommodate radial load and axial load in two directions. Angular contact ball bearings suit high-speed rotation and high-precision rotation. These bearings are mainly used in the fields like machine tool spindles, high frequency motors, oil pumps, air compressors
Angular contact ball bearings can be used to support radial and axial loading at the same time. Because the single row angular contact ball bearing can take axial loading only in single direction, matched bearings are often adopted. When used in pairs of bearings, it is convenient to adjust them. The material that to make into the cage are brass, synthetic resins and so on, they are divided pedestald on the bearing features and use environment.
1, sealed angular contact ball bearings to solve difficult problems Angular contact ball bearings is mainly used in machine tool spindle. In most cases, locking the outer ring of this bearing the mouth and can not seal the resulting circular groove, so many used in the machine spindle angular contact ball bearings can not be used for other hosts as the other bearings as lubrication. If installing a set of auxiliary lubrication system,
Typically, the operating temperature above 150 º C for use as high temperature bearings bearings. As the chromium bearing steel in the use temperature exceeds 150 º C ~ C, its hardness to a sharp decline in the size of instability and lead to bearing not work properly. So for working temperature 150 º C ~ E ~ 250 º C work under the conditions of the bearings, if the rings and rolling bodies still use an ordinary high carbon chromium bearing steel,
Angular contact ball bearing can carry radial load and axial load at the same time, meanwhile, it can also endure pure axial load, together with high limited speed. The carrying capacity of axial load is decided by the contact angle, the bigger contact angle, the higher carrying capacity of axial load. The definition of contact angle α Is the angle formed by the line upright with axes of bearings and the line which connect the grounders and contact of rollaway.
1: Angular contact ball bearings:1. Single bearing can tolerate this type of axial load in one direction, also need to configure other bearings to offset the additional axial force, made on the installation of the additional axial force which offset each other, and can afford two Power up the axial load, and has two directions of a strong axial limit capacity, generally installed in pairs using two sets of bearings in its outer end is relatively wide (back to back) or the relatively narrow end (face) two to install forms,
In most cases, the outer ring of bearing such a fag mouth locked, and can not seal ring groove thus formed, leading many used in the machine tool spindle bearings on the angle of contact with Qiu can not be used as the other bearing on the other Zhuji as lubrication. If installing a set of auxiliary lubrication system, not only to increase costs and make the structure more complex machine.
1, ntn bearing requirements for the workOne of imports bearing loadBearing loads suffered import size, direction and nature of the choice based primarily on imported bearing type.The size selection based on load bearing type of imports, because imports of roller bearings between the main component is line contact, should be used to bear a larger load, the deformation after the load is also smaller. The ball bearings are mainly imported point contact,