Pillow block bearing

The outer spherical ball bearing is actually a variant of the deep groove ball bearing. Its feature is that the outer diameter surface of its outer ring is spherical, which can be matched into the corresponding concave spherical surface of the bearing seat to play the role of centering. The outer spherical bearing is mainly used to bear the combined radial and axial load, which is mainly radial load. Generally, it is not suitable to bear the axial load alone.

An appropriate amount of lubricant shall not be cleaned or added before installation. The allowable axial load shall not exceed 20% of the rated dynamic load when the jacking screw on the protruding end of the bearing inner ring is tightened on the shaft.

The performance of the outer spherical ball bearing with eccentric sleeve is basically the same as that of the outer spherical bearing with jackscrew, except that the jackscrew is not on the inner ring, but on the eccentric sleeve. The inner hole of the tapered hole outer spherical ball bearing is a tapered hole with a taper of 1:12, which can be directly installed on the tapered shaft or installed on the shoulderless optical shaft with the help of the set sleeve, and the bearing clearance can be fine-tuned.

Spherical bearings are preferred for applications requiring simple equipment and parts, such as agricultural machinery, transportation systems or construction machinery.

It is mainly used to bear the combined radial and axial load mainly based on radial load. Generally, it is not suitable to bear the axial load alone. This kind of bearing can be installed with inner ring (with full set of rollers and retainers) and outer ring respectively. This kind of bearing does not allow the shaft to tilt relative to the shell, and will generate additional axial force under radial load. The size of the axial clearance of the bearing has a great influence on the normal operation of the bearing. When the axial clearance is too small, the temperature rise is high; When the axial clearance is large, the bearing is easy to be damaged. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation. If necessary, pre-interference installation can be used to increase the rigidity of the bearing.

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