Bearing structure for mill roll grinder abraisve disk main shaft

The utility model is a bearing structure for mill roll grinder abrasive disk main shaft which will not produce additional temperature rising with main shaft; main shaft parts has the advantages of stable work function, small and uniform abrasion , good precision keeping and long life span. The utility model comprises main shaft; outer part of the main shaft is provided with an eccentric sleeve which is arranged on the grinding rack through a bearing; a bearing is arranged between the main shaft and the eccentric sleeve; end face of one end for the bearing contacts the eccentric sleeve, the other end is provided with a plug which is connected with the main shaft using thread; the main shaft is provided with a seal cover at outer side of the plug; the utility model is characterized in that: the bearing between the main shaft and the eccentric sleeve is hydrostatic plane thrust bearing; flow control device, which is located at outer part of the eccentric sleeve, is connected with oil holes of the thrust bearing separately through oil convey pipelines.