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Technical points and precautions for installation of outer spherical bearing with seat

2021-09-07

Rolling sound and its control method of outer spherical bearing with seat rolling sound is a harsh metal friction sound that can occur in cylindrical roller bearing on all occasions. It mostly occurs in large grease lubricated bearings, but it is more likely to occur in grease with degraded base oil performance, and it hardly occurs in oil lubrication.
In addition, it is easy to occur in winter. When bearing pure radial load, it is easy to occur in the case of large radial clearance, and it is easy to occur in a specific speed range with different models and sizes of outer spherical bearing with seat, which will occur continuously and intermittently. Special processing methods for the outer race raceway can prevent the occurrence of rolling sound. If necessary, this kind of bearing can be selected, or the radial clearance of the bearing can be appropriately reduced, the grease with excellent performance can be used and the rigidity of parts matched with the bearing can be improved.
(1) Correct installation is very important for the use of pedestal outer spherical bearing. I hope you can use the correct installation method in the future.
(2) During installation, mechanical, heating or hydraulic methods can be selected according to its type and size. The force exerted on the outer spherical bearing with seat during installation must not be transmitted from one bearing ring to another through the rolling element, otherwise the raceway may be damaged. However, under no circumstances should the bearing ring, cage, rolling element or seal be directly knocked.
(3) Install eccentric sleeve. First put the eccentric sleeve on the eccentric step of the bearing inner sleeve and tighten it by hand along the rotation direction of the shaft. Then insert or counter the small iron rod into the counterbore on the eccentric sleeve. Knock the small iron rod along the rotation direction of the shaft with a hammer to make the eccentric sleeve firmly installed. Finally, lock the Allen screw on the eccentric sleeve.
(4) The bolts for fixing the bearing seat shall not be tightened first, and the outer spherical bearing sleeve with seat shall be able to rotate in the bearing seat. Then fasten the bearing seat bolts. Similarly, install the bearing and seat at the other end of the same shaft, rotate the shaft for several turns, and let the bearing itself automatically align.
(5) Apply lubricating oil on the mating surface of bearing seat and bearing, and install the bearing into the bearing seat. Then sleeve the assembled bearing and bearing seat on the shaft. Push it to the required position for installation. Disassembly and assembly skills of outer spherical bearing with seat, maintenance methods and technical points of bearing installation
(6) Before installing the outer spherical bearing with seat on the shaft, the fixing pin of the bearing sleeve must be pulled out, the surface of the journal must be polished smooth and clean, and the journal shall be coated with oil for rust prevention and lubrication (the bearing is allowed to rotate slightly on the shaft).

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