What Is An Outer Spherical Ball Bearing?

The outer spherical ball bearing is actually a variant of the deep groove ball bearing, which is characterized by its outer ring outer diameter surface as the spherical surface, which can be assigned to the corresponding concave spherical surface of the bearing seat to play the role of adjustment.

Although the basic performance of outer spherical bearings and deep groove ball bearings should be similar, but because the bearings are mostly used in relatively rough machinery, installation and positioning is not accurate enough, the axis of the shaft and seat hole to neutral difference, or the shaft length and deflection, etc. , and the bearing itself is not high enough, some structures are also relatively rough, so the actual performance of the actual performance of the same specifications of the deep-groove ball bearing to be discounted. For example: with the top wire of the outer spherical ball bearing is applied to the stiffness difference deflection large through shaft, this bearing two sides with sealring, can strictly prevent dirt intrusion, the factory has been filled with the appropriate amount of lubricant, installation does not need to be cleaned, no need to add lubricant, bearing inner ring protruding end of the top wire screw on the shaft tight. The axial load allowed must not exceed 20% of the rated dynamic load.

The outer spherical ball bearing of the eccentric set is basically the same as the outer spherical bearing with the top wire, but it is not on the inner ring, but on the eccentric cover. The inner hole of the outer spherical ball bearing of the conical hole is a conical hole with a 1:12 cone degree, which can be mounted directly on the cone shaft, or mounted on the shaftless shoulder light shaft with the help of a tight liner, and the bearing clearance can be fine-tuned.

Outer spherical bearings are preferred for applications where equipment and components are required to be simple, e.g. for agricultural machinery, transport systems or construction machinery.

Mainly used to withstand radial and axial combined loads based on radial loads, generally not suitable for individual axial load, such bearings can be installed in the inner ring (with a full set of rollers and retainers) and outer ring. This type of bearing does not allow the shaft to be tilted against the housing, and additional axial forces are generated under radial load appointment. The size of the axial play of this kind of bearing is very large to whether the bearing can work properly, when the axial play is too long, the temperature rise is higher, and when the axial play is large, the bearing is easy to damage. Therefore, in the installation and operation to pay special attention to adjust the bearing axial play, if necessary, can be pre-installed to increase the rigidity of the bearing.