Technical Points and Precautions for Installation of Outer Spherical Bearings

Rolling noise and control method for rolling bearings with a seat outside The rolling sound is a harsh metal friction sound that may occur in all occasions of cylindrical roller bearings, and most of them occur in grease-lubricated larger bearings, while in base oil Greases with degraded performance are more likely to occur, and hardly occur with oil lubrication.

In addition, it is easier to occur in winter, when it is subjected to pure radial load, it is easy to occur in the case where the radial clearance is large, and it is easy to occur within a specific rotational speed range depending on the type of the spherical bearing with a seat outside. It will occur continuously and intermittently. The outer ring raceway adopts special processing methods to prevent the occurrence of rolling noise. If necessary, this type of bearing can be used, or the radial clearance of the bearing can be appropriately reduced, the grease with excellent performance can be used, and the rigidity of the matching mechanism with the bearing can be improved. .

(1) The correct installation is very important for the use of spherical bearings outside the seat. I hope everyone can use the correct installation method in future use.

(2) When installing, it can be selected according to its type and size, mechanical, heating or hydraulic methods. The force exerted on the spherical bearing with a seat must not be transferred from one bearing ring to the other bearing ring by means of rolling elements, otherwise the raceway may be damaged. However, in any case, it is not possible to directly strike the bearing rings, cages, rolling elements or seals.

(3) Install eccentric sleeve. First, the eccentric sleeve is sleeved on the eccentric step of the inner sleeve of the bearing and tightened by hand along the direction of rotation of the shaft. Then insert or hold a small iron rod against the counterbore on the eccentric sleeve. Hammer the small steel bar with the hammer in the direction of rotation of the shaft. Make the eccentric sleeve securely, and finally lock the hexagon socket screw on the eccentric sleeve.

(4) The bolts holding the bearing housing should not be tightened beforehand, and the outer spherical bearing housing of the housing can be rotated within the bearing housing. Then tighten the bearing seat bolts. Also install the other end bearing and seat on the same shaft, rotate the shaft a few times, and let the bearing itself automatically align the position.

(5) Apply lubricant to the bearing seat and bearing mating surface, and install the bearing into the bearing seat. Then put the assembled bearing on the shaft together with the bearing seat. Push to the desired location for installation. With the outside of the spherical bearing bearing assembly and disassembly techniques maintenance methods and bearing installation points of the technology bearings (6) installed on the shaft with a seat outer spherical bearings, you must first unplug the bearing jacket fixing pin, while smoothing the journal surface smooth, And apply grease to the journal to prevent rust and lubrication (allowing the bearing to rotate slightly on the shaft).

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