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One-stop procurement in Shanghai for imported German FAG precision heavy-duty machine tool double-row angular contact ball bearings, imported German FAG precision air compressor bearings, imported German FAG precision insulated bearings, and imported German FAG precision gearbox self-aligning roller bearings.
The installation of imported German FAG precision heavy-duty machine tool double-row angular contact ball bearings is more complex than that of deep groove ball bearings. They are mostly installed in pairs and require preload. Proper installation can greatly improve the working accuracy of the machine tool and the bearing life; otherwise, not only will the accuracy requirements not be met, but the lifespan will also be affected.
There are three installation methods for imported German FAG precision heavy-duty machine tool double-row angular contact ball bearings: back-to-back, face-to-face, and tandem arrangement. What are the characteristics and advantages of each of these installation methods?
1. Back-to-back (wide end faces of two bearings facing each other) installation: The contact angles of the bearings spread out along the axis of rotation, increasing their radial and axial support angular rigidity and maximizing their resistance to deformation.
2. Face-to-face (narrow end faces of two bearings facing each other) installation: The contact angles of the bearings converge towards the axis of rotation, resulting in lower support angular rigidity. Since the inner ring extends beyond the outer ring, the original clearance is eliminated when the outer rings of the two bearings are pressed together, increasing the preload of the bearings.
3. Tandem arrangement (wide end faces of two bearings in one direction) installation: The contact angles of the bearings are in the same direction and parallel, allowing the two bearings to share the working load in the same direction. However, to ensure axial stability when using this installation method, the two pairs of tandem bearings must be installed opposite each other at both ends of the shaft.
