Mining Excavator Slewing Bearings

Slewing bearings are critical components in mining excavators, enabling the rotation of the upper structure under high axial, radial, and tilting loads. Ektennsa supplies slewing bearings for heavy-duty mining equipment, including OEM-equivalent and alternative solutions. All components are selected for durability, precision, and compatibility with major OEM machines. The solutions are based on proven three-row roller bearing designs, ensuring high load capacity and stable performance in continuous mining operations.

The slewing bearings supplied are primarily designed as three-row roller bearings, enabling the simultaneous absorption of axial, radial, and tilting loads. This design ensures high load capacity and stable operation under continuous heavy-duty conditions typical in mining environments.

All components are engineered for use in large mining excavators and are resistant to dust, vibration, and extreme mechanical stress. Precision-machined raceways and gear structures ensure smooth rotation and reliable performance over extended operating periods.

The slewing bearings are manufactured with OEM-compatible dimensions and interfaces, allowing seamless integration into existing machines. Solutions are available for a wide range of equipment from major manufacturers such as Liebherr, Hitachi, Komatsu, Demag, Caterpillar, Terex, and O&K.