
Image may differ from product. See technical specification for details.
Standard
GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN/VDEh,DIN/VDEh
Inner diameter
120mm-8000mm
Outer diameter
280mm-8000mm
Weight
20kg-8000kg
Structures
Outer Ring, Inner Ring, Spacer, Rolling element, Seal
Brand
QIBR/OEM/Neutral
Package
Standard Export Package
Material
42CrMo, 50Mn, or Stainless Steel
ODM/OEM
Support
Applications
Hoisting machinery, construction machinery, material handling machinery, mining machinery, metallurgical machinery, medical instruments,ships and warships, radar,wind turbine

NO. | Product | Product Number | Gear type | Inner ring height (h) | Outer diameter (Da) | Overall height (H) | Weight | Inner diameter (di) |
---|---|---|---|---|---|---|---|---|
1 |
![]() |
VA 14 0188 V | External Gear | 30 mm | 259.36 mm | 35 mm | 7.5 kg | 135 mm |
2 |
![]() |
VA 16 0235 N | External Gear | 35 mm | 318.6 mm | 40 mm | 13 kg | 171 mm |
3 |
![]() |
VA 16 0302 N | External Gear | 30 mm | 384 mm | 32 mm | 13.6 kg | 240 mm |
4 |
![]() |
VA 25 0309 N | External Gear | 52.5 mm | 408.4 mm | 60 mm | 29.5 kg | 235 mm |
5 |
![]() |
VA 30 0475 N | External Gear | 60 mm | 598.2 mm | 65 mm | 64 kg | 382 mm |
6 |
![]() |
VA 22 0596 N | External Gear | 48 mm | 712.2 mm | 55 mm | 62 kg | 510 mm |
7 |
![]() |
VA 30 0685 N | External Gear | 61 mm | 829.9 mm | 68 mm | 112 kg | 577 mm |
8 |
![]() |
VA 30 0980 N | External Gear | 90 mm | 1144 mm | 100 mm | 230 kg | 870 mm |
Features and advantages of QIBR VA series four-point contact ball slewing bearings
The QIBR VA series four-point contact ball slewing bearings come with multiple significant features and advantages, playing an essential role across various industries, including:
1. Efficient power transmission of QIBR VA Series four-point contact ball slewing bearings
With their external gear design, the QIBR VA Series bearings directly connect to gear-driven systems, providing highly efficient power transmission. This reduces the need for extra components like chains or belts, minimizing mechanical losses and maintenance.
2. QIBR VA Series four-point contact ball slewing bearings can handle multi-directional loads
The QIBR VA Series bearings can simultaneously support loads from multiple directions, performing excellently under dynamic and complex conditions. They are ideal for applications that require frequent rotation and swinging, such as cranes and wind turbines.
3. Low friction for improved efficiency of QIBR VA series four-point contact ball slewing bearings
The QIBR VA series features low friction between rolling elements and contact surfaces, which enhances motion efficiency, reduces energy consumption, and extends the lifespan of the equipment.
4. Tailored solutions of QIBR VA series four-point contact ball slewing bearings
QIBR offers customization services for the VA Series, allowing bearings to be designed for specific needs and to meet the unique demands of various industries and applications.
Performance enhancements and solutions of QIBR VA series four-point contact ball slewing bearings
1. Improvement of bearing material characteristics
QIBR four-point contact ball slewing bearings VA series can be used with high-temperature seals and other materials, enhancing their bearing capacity and service life in demanding applications.
2. Improvement of bearing rotational accuracy
QIBR four-point contact ball slewing bearings VA series are manufactured with state-of-the-art processing equipment and techniques, including precision heat treatment and advanced machining centers. These processes significantly improve the geometric accuracy of the inner and outer rings, reduce machining errors, and enhance the rotational accuracy and stability of the bearings.
3. Improvement of corrosion resistance
QIBR four-point contact ball slewing bearings VA series have a surface coating, such as zinc spraying, painting, etc., which can maintain good anti-corrosion properties. Commonly, they will be used in environments requiring corrosion resistance.
4. Customized design
For different occasions, the QIBR four-point contact ball slewing bearings VA series can be tailored with individual dimensional solutions to meet special applications. This design not only enriches the standard of bearings but also demonstrates our commitment to providing practical guidance for manufacturers to meet the individual needs of users, making them feel catered to and valued.
In conclusion, by optimizing materials, manufacturing accuracy, surface corrosion protection, and other measures, the performance of the QIBR four-point contact ball slewing ring bearings VA series can be significantly improved to meet the increasingly demanding application requirements.
Main application fields of QIBR four-point contact ball slewing bearings VA series
Cranes
The QIBR VA series four-point contact ball slewing bearings can simultaneously support heavy radial and axial loads and overturning moments. They are designed for cranes' rotating parts and provide stable and smooth lifting and rotation performance.
Wind turbines
QIBR four-point contact ball slewing bearings VA series are used in the slewing connection between a wind turbine's tower and a nacelle, helping to achieve a smooth rotation of the nacelle to align with the wind direction.
Amusement facilities
QIBR four-point contact ball slewing bearings series VA are used in carousels, ensuring their safety and stable operation.
Construction machinery
QIBR four-point contact ball slewing bearings are used in excavators' rotating platforms to provide load support and precise operation.