| This kind of bearing have two subclasses. The structure that a ring of the bearing fit with the shaft tightly is called shrink ring stucture and that fit with ring leave a little gap between is called housing washer structure. The bearing can carry axial load from single or dual directions according to the bearing's subclass but it is seldomly used to carry radial load. The bearing can't stop the radial displacement of the shaft or housing. Usually, it's split type, can be mounted respectively and it's top rotating speed is relatively lower. When the shaft is not in the same circle with the housing, the bearing will easily be destructed. In order to protect the bearing from early destruction, a 0.5-1.0mm gap is left between the housing washer and housing and making the shaft plumb in the radial plane of the housing. In the bearing's running process, friction between ball and raceway cause the bearing's temperature up and even running failure, so the bearing should work under minimum axial load.
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