Before mounting the slewing ring bearing, it is necessary to inspect the mounting surface of the main machine. It is required that the supporting member should have sufficient strength, the connecting surface should be machined, and the surface should be smooth and free of debris and burrs. For those that cannot be machined to achieve the required flatness, special plastics with high injection strength can be used as fillers to ensure the accuracy of the mounting plane and to reduce vibration.
The slewing ring of the slewing bearing has a hardened soft band, which is marked with “S” on the end face of the ferrule. When installing, the flexible tape should be placed in the non-loaded area or in the non-recurrent area (the plug hole is always in the soft Take place).
When installing the slewing bearing, radial positioning should be performed first, cross-tighten the mounting bolts, and check the rotation of the bearing. When tightening the bolt, there should be enough pre-tightening force, and the pre-tightening force should be 70% of the yield limit of the bolt material. Mounting bolts should be equipped with flat washers and spring washers must not be used.
