Insert bearing

The insert bearing ball bearing is actually a variant of the deep groove ball bearing. The characteristic is that the outer diameter surface of its outer ring is spherical and can be fitted into the corresponding concave spherical surface of the bearing seat to play the role of centering. Although its basic performance should be similar to that of deep groove ball bearings, since most of these bearings are used in rough machinery, the installation and positioning are not accurate enough, the axis alignment between the shaft and the seat hole is poor, or the shaft is long and the deflection is large, and the accuracy of the bearing itself is not high enough, and some of the structures are rough, so the actual performance of the bearing is quite discounted compared with that of the deep groove ball bearings of the same specification. For example, the outer spherical ball bearing with jacking screw is applied to the through shaft with poor rigidity and large deflection. The two sides of the bearing are provided with sealing rings, which can strictly prevent the invasion of dirt. An appropriate amount of lubricant has been filled before delivery. It is not necessary to clean or add lubricant before installation. When the jacking screw on the protruding end of the bearing inner ring is fastened on the shaft, the allowable axial load shall not exceed 20% of the rated dynamic load. The outer spherical bearing is preferentially applied to the occasions requiring simple equipment and parts, such as agricultural machinery, transportation system or construction machinery. It is mainly used to bear the combined radial and axial loads dominated by radial loads. Generally, it is not suitable to bear the axial loads alone. This type of bearing can be installed with inner ring (with full set of rollers and retainers) and outer ring respectively. The bearing does not allow the shaft to tilt relative to the housing, and additional axial force will be generated under radial load. The axial clearance of the bearing has a great influence on whether the bearing can work normally. 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 carried out to increase the rigidity of the bearing.