Complex Roller Path: It typically uses a single-row ball or a crossed roller design. The Caterpillar 305 commonly uses a single-row ball design with a raceway that accommodates both axial and radial loads efficiently. This design offers a good balance of performance, cost-effectiveness, and compactness for a compact excavator.
Sealing and Lubrication:
Integrated Seals: High-quality rubber or synthetic seals are fitted on both the inner and outer diameters to prevent the ingress of abrasive contaminants (like dirt, sand, and moisture) and to retain grease.
Lubrication Fittings: It is equipped with grease fittings (zerk fittings) to allow for regular re-lubrication. This is essential for flushing out wear particles and maintaining a protective film between the rolling elements and raceways, thereby extending the bearing's service life.
This 163-9996 slewing bearing is used for 305 304 excavator.
Related part number:
172-2717
163-9969
8T-6868
8T-4648
8T-4223
140-4986
