Slewing bearings, also known as slewing ring bearings, are large-sized bearings designed to handle axial, radial, and moment loads simultaneously. These bearings are typically used in applications where rotating large structures or equipment is necessary, such as in cranes, excavators, wind turbines, and rotating platforms.
Here’s a general size chart for slewing bearings, though specific dimensions may vary depending on the manufacturer and application:

Key Dimensions
- Bore Diameter (d): The inner diameter of the slewing bearing.
- Outer Diameter (D): The total outer diameter.
- Height (H): The height or thickness of the bearing.
Load Capacity:
- Axial Load Capacity: The maximum load the bearing can handle in the axial direction.
- Radial Load Capacity: The load the bearing can handle in the radial direction.
Common Slewing Bearing Types
- Single-row four-point contact ball bearing
- Single-row crossed roller bearing
- Double-row ball bearing
- Three-row roller bearing
Application-Specific Variations:
- Light-duty slewing bearings for smaller applications.
- Heavy-duty slewing bearings for high-load applications such as construction and offshore platforms.
Dimensions, tolerances and load capacities may vary from manufacturer to manufacturer, please contact us for the latest product datasheet.

