Excavator slewing bearing

The excavator slewing bearing is a key component in the excavator structure, responsible for supporting and rotating the excavator. It usually includes two inner and outer annular tracks, which are composed of balls or rollers to reduce friction and improve rotation efficiency.

Strong load-bearing capacity

Crane slewing bearing are usually designed to withstand large vertical and horizontal loads.

Flexible rotation

The slewing bearing allows the crane to rotate flexibly in the horizontal direction to meet various work requirements.

Wear-resistant and corrosion-resistant

Slewing bearing are usually made of wear-resistant and corrosion-resistant materials to ensure their long-term stable operation and reduce maintenance costs.

High reliability

As a key component of the crane, the slewing bearing is usually precision designed and manufactured to ensure its high reliability.

  Application examples

In an excavator, the slewing bearing is a vital component responsible for rotating the entire superstructure. The following are examples of applications of slewing bearings in excavators:

  • Rotary excavation: The excavator can rotate 360 degrees on the construction site through the slewing bearing to achieve precise excavation and earth moving operations.
  • Excavating deep pits: The slewing bearing enables the excavator to rotate and position conveniently when digging deep pits or foundation pits, improving construction efficiency.
  • Loading and Unloading Materials: Slewing bearings enable excavators to easily load and unload materials, such as moving building materials on construction sites.
  • Digging trenches: In pipeline laying or other underground projects, excavators can accurately dig trenches through slewing bearings.
  • Turnover operations: Some excavators are equipped with flippable slewing bearings, allowing them to perform vertical excavation, suspended work, or more complex operations.
  • Rock excavation: For excavators that need to perform excavation operations in rocky geological conditions, slewing bearings can flexibly adapt to complex working environments.
  • River regulation: The excavator can carry out dredging and regulation work in the river through the slewing bearing to ensure smooth water flow.



We provide complete and reliable excavator slewing bearing solutions, aiming to solve problems for customers while creating value for customers, in order to realize the value of the product.

  • Repair
  • Return to factory surveying and
  • Mapping
  • Maintenance
  • Inventory planning
  • Selection
  • Design and development
Repair slewing bearing?

A professional team of engineers controls the entire maintenance process.

Replace the slewing bearing?

Serve your application with over 20 years of slewing bearing manufacturing experience.


Excavator slewing bearings are mostly non-standard models, and the structural form is mostly single-row four-point contact ball type. Its structure is stable and cost-effective, and it is widely used in small and medium-sized cranes. Contact Fenghe to obtain product catalogs and related technical information.

Slewing bearing inventory planning

Fenghe's stocking plan provides you with excellent services to ensure that you can always obtain the required slewing bearings and maintain the stability of your equipment. If you have any questions or special needs about the stocking plan, please feel free to contact us and we will try our best to meet your requirements.