How to install the bearings housing?

The slewing bearings housing guide can bear the comprehensive load, has a particularly large structure and a large bearing seat, and has the characteristics of compact structure, sensitive rotation, and convenient installation and maintenance. Therefore, the bearing seat means that the item with the bearing will have support; the shaft is the inner support point of the bearing; and the outer support point is the bearing seat.

bearings housing installation method one - press-in cooperation method
When installing the bearing seat, first press the bearing on the shaft with a press, then put the shaft and bearing into the bearing seat at the same time, and the bearing seat needs to pay attention to the end face of the inner ring of the bearing when pressing, using a soft The inner diameter of the equipment casing should be larger than the diameter of the journal, and the outer diameter should be smaller than the inner ring rib of the bearing.

At this time, the outer ring of the bearing should cooperate closely with the bearing housing. If the cooperation between the inner ring and the shaft is relatively loose, the bearing can be pressed into the hole of the bearing seat first. It should be noted that the outer diameter of the equipment sleeve should be smaller than that of the bearing seat. The diameter of the seat hole; and if the matching between the bearing ring and the shaft and the seat hole is very tight, it is necessary to press the inner ring and the outer ring into the seat hole of the shaft and the bearing seat at the same time.

Bearings housing installation method 2 ---- heating cooperation method

This is a common, labor-saving, bearing seat mounting method that changes tight cooperation into loose cooperation through the thermal expansion of the bearing heater. First put the bearing or the ferrule of the separable bearing into the oil tank for heating. It should be noted that the oil temperature should be in the range of 80-100 ℃; then, after heating, take it out from the mailbox and immediately put the bearing seat on the shaft, and finally In order to prevent the bearing from cooling, if the fit between the end face of the inner ring and the shaft shoulder is not tight, axial tightening can be performed again.

When the outer ring of the bearing is tightly fitted with the bearing housing, heating the bearing seat can avoid scratching the cooperating surface. It should be noted that when the oil tank is used to heat the bearing seat, the bearing cannot be placed directly at the bottom of the box, and a grid should be placed at a fixed distance from the bottom of the box, or the bearing should be hung directly with a hook; There should be a thermometer, and the oil temperature should not exceed 100 °C. At this time, in order to prevent the tempering effect, the hardness of the ferrule will decrease.

Bearings housing installation method three ---- tapered hole bearing equipment

Install the adapter sleeve and the withdrawal sleeve on the tapered surface of the bearing seat, or install the tapered bore bearing equipment on the tapered journal, or select the radial clearance of the bearing to reduce the amount to balance the tightness of the bearing seat. Spend. The radial clearance of the bearing should be measured before the equipment is used, and the clearance should be measured regularly during the operation of the equipment until the required clearance reduction is reached. The bearing seat is generally equipped with a lock nut, and the heating device method can also be used.

Bearings housing installation method four - thrust bearing equipment

The bearings housing installation method of this kind of thrust bearing is relatively simple. First, the central shaft of the two-way thrust bearing is fixed on the shaft to prevent the bearing seat from rolling on the shaft. The cooperation between the inner ring of the bearing and the shaft is due to interference cooperation. The cooperation between the ring and the bearing chamber is attributed to the gap cooperation.

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