The steel ball and groove are worn out, the clearance is too large, and radial and axial sway is generated, which should be replaced in time. If the individual balls are worn out, the steel balls with lighter wear and no pitting may be replaced on the old bearings of the same type.
Lubricating oil should be provided. The self-aligning bearing sealed at both ends does not need to be filled with lubricating oil during use. It should be removed after the end of the working season and lubricated from the small hole of the sealing cover.
When the bearing is loaded and unloaded, it should not be hard knocked hard. Pay special attention not to knock the outer casing of the bearing. The inner ring of the bearing should be tapped lightly.
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