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Industrial use of fine grinding mill uses rolling, already in China has been widely promoted in the saving power consumption, increase production, save oil and reduce the amount of maintenance, reduce pollution, and many other areas, with good results. At present, some manufacturers to follow the mill using the method of rolling bearings, in the form of a hollow shaft and installation of rolling bearings have more unreasonable, mill manufacturers use to bring some disadvantages in future work running. To solve this problem, we propose the best method of assembling special mill rolling bearing hollow shaft mounting.

Hollow shaft mounting the old fashioned way Rolling mill is to be processed into the inner diameter of the hollow shaft bearings fit the bearing thermal devices, bearing parts, the outer bearing ring has a top cover, top cover by access to material spiral tube (or out of the lining material set) is bolted to the hollow shaft, for pressing. In the process of grinding operation, access to material spiral tube, often loose bolts, resulting in a top sleeve and the hollow shaft displacement, the dust will air from the gap between the shaft and the top cover of the box into the bearings, the grease becomes dirty, have occurred leading to poor lubrication, causing damage to the phenomenon of the bearing.

In order to overcome some of the above shortcomings, we have gone through years of practice and exploration, devised a new method of installation and use of some manufacturers to get a good application.

The method is: the hollow shaft mounting Rolling mill site will be bold in diameter, hollow shaft of light oil is cooled in turn transmitted to the hollow shaft bearing temperature dropped to 60 degrees below the normal range of.

The advantage of bearing the following areas:

1 superior lubrication grease lubrication, so to minimize bearing friction coefficient, better energy-saving effect. {HotTag}

2 of the normal operation of the bearing temperature, oil lubricated bearings than dry much lower temperature, extending the life of the bearing.

3. Bearing Xiazuo has observed oil standard oil level, oil level operatives can always see the level that can replenish the oil, and prevent starvation and poor lubrication to avoid bearing damage accident occurred.

4 bearing oil chamber oil content, and can be mounted roller bearing outer diameter narrowing (in and out equipment installation to ensure adequate strength and torque strength of the premise), and out of the hollow shaft and feed screw barrel coupling end face of a flange, and carried out feeding spiral tube flange connection. In the coarse to fine hollow shaft end face of the ferrule disposed within a bearing flange pressed against the axial bearing sprang.

The second advantage is to remove the bearing outer top cover to prevent dust from entering the bearing box, to maintain a good quality oil to ensure that the bearing life, safe and reliable operation.

A third advantage is due to the increased diameter of the rolling bearing formation and the average outer diameter of the hollow shaft diameter is poor, with thin oil lubrication chamber, improving dilute oil level and reduce light oil spill received a certain effect.

The fourth advantage is due to the installation of the hollow shaft diameter rolling bearing bold parts of the rolling bearing and the radial distance between the spiral tube feeding and discharging increased heat played a role in cooling. Cooling of bearings and prolong life, play a use.