The old mill hollow shaft mounting of rolling bearings is processed into hollow shaft inner diameter suitable for bearings, bearing thermal device, the bearing parts, the outside of the bearing rings top of sets, the top sets rely on out of the feed screw tube (or access to material liningsets) with bolts fixed to the hollow shaft to carry out compression. In the mill is running out of material spiral tube, often loose mounting bolts, resulting in a top set and the hollow shaft displacement, the gap between the dust from the air shaft with the top into the bearing box, so that the grease dirty, result in poor lubrication, resulting in the phenomenon of bearing damage.

In order to overcome some of these shortcomings, the method is: Rolling parts installed in the mill hollow shaft diameter of bold, hollow shaft thin oil to be cooled in turn hollow shaft transmitted to the bearing temperature dropped to 60 degrees below the normal range . The advantages of this bearing in the following areas:

1. Superior thin oil lubrication grease lubrication, imported bearings coefficient of friction to a minimum, better energy-saving effect.

2. imports of imports of bearing the normal operation of the temperature of the dry oil lubricated bearing temperature is much lower, extending the service life of imported bearings.

Imported bearings Xiazuo with oil level observation of oil standard, the operator can always see the oil level high and low, to replenish the oil, to prevent due to lack of oil, poor lubrication, to avoid the import bearing damage accident.

Import bearing oil chamber, oil content, rolling imported bearings can be installed (out equipment to ensure installation of adequate strength and torque force under the premise), the hollow shaft and out of the feed screw tube connection end to set up a smaller outside diameter flanges, and expected out of the spiral tube flange connections. From coarse to fine the side surface in the hollow shaft, set up a compression of imports bearing ring flange to prevent imports of bearing axial sprang.    


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