
Slewing Drive – Custom or Standard Design
November 4, 2024
ZZ Double Row Ball Slewing Bearing for Excavators
August 18, 2025VU140179 | Four Point Contact Ball Slewing Ring Bearing
The VU140179 slewing bearing is a specialized type of bearing designed to support large radial, axial, and tilting loads while allowing smooth rotational movement. It is typically used in heavy-duty applications requiring high torque and precision, such as in cranes, excavators, wind turbines, and solar tracking systems.

INTERCHANGE
The ZZ VU140179 slewing bearing series could serve as a potential substitute for these commonly used bearing part numbers.
| ZZ | INA |
| FVU140179 | VU140179 |
Design Features of VU140179 Slewing Bearing
The VU140179 bearing is designed with an inner and outer ring, featuring four contact points between the steel balls and the rings, which enables it to support radial, axial, and tilting loads. The inner ring has an inside diameter of 4.902", while the outer ring has an outside diameter of 9.213". This design offers excellent load capacity, long-lasting durability, and smooth rotational performance, making it well-suited for applications that demand high-torque and precise operation.
What Advantages Does the VU140179 Slewing Bearing Offer?
- High Load Capacity: Capable of supporting radial, axial, and tilting loads simultaneously, making it perfect for heavy-duty applications.
- Compact Design: Delivers robust performance in a space-saving form, optimizing space in mechanical systems.
- Smooth Rotation: Ensures smooth, precise movement with minimal friction, contributing to reliable and efficient operation.
- Durability: Built to endure harsh conditions and extended use, offering a long service life.
- Versatility: Ideal for a wide variety of applications, such as cranes, excavators, and solar tracking systems.
What Are the Applications of the VU140179 Slewing Bearing?
- Cranes and Excavators: Essential for the rotation and lifting functions in heavy machinery.
- Solar Tracking Systems: Enables precise, smooth movement to ensure optimal positioning of solar panels for maximum energy efficiency.
- Wind Turbines: Supports the rotation of the turbine for accurate positioning and efficient energy generation.
- Radar and Antenna Systems: Ensures stable and reliable rotation of radar dishes and communication antennas.
- Offshore and Marine Equipment: Used in rotating components like winches and turntables on offshore platforms and marine vessels.
| Part Number | VU140179 |
| Brand: ZZ | Interchangeable With: Schaeffler (INA) |
| System of Measurement | Metric |
| Series | V Series |
| Gear | Without Gear |
| Type | Ball |
| Bearing Type | Standard |
| Product Type | Slewing Beraing |
| Inside Diameter Of Inner Ring | 4.902" |
| Outside Diameter Of Outer Ring | 9.213" |
| External Diameter On Inner Ring | 7.087" |
| Height Of Overall Bearing Assembly | 1.378" |
| Height Of Inner Ring | 1.181" |
| Height Of Outer Ring | 1.181" |
| Bolt Circle In Inner Ring | 5.689" |
| Bolt Circle In Outer Ring | 8.425" |
| Size Holes In Inner Ring | 0.433" |
| Size Holes In Outer Ring | 0.433" |
| Number Holes In Inner Ring | 12 |
| Number Holes In Outer Ring | 12 |
| Basic Dynamic Load Rating(Ca) | 20475 lbs |
| Basic Static Load Rating(C0a) | 83250 lbs |
| Basic Dynamic Load Rating(Cr) | 18450 lbs |
| Basic Static Load Rating(C0r) | 38025 lbs |
| Ring Material | 42CRO or 50MN |
| Ball Materrial | Chrome Steel |
| Cage Material | Nylon or 300 Series Stainless Steel |
| Seal Material | NBR |
| RoHS | Compliant |
| Weight | 6.3 Kg |






















