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VSI

The bearing belongs to the standard series 20 and features internal gear teeth, selectable internal clearance, is sealed, and includes a lubrication nipple located on the circumference of the ring without teeth. This configuration is designed for applications where precise positioning and smooth operation are crucial, such as in construction machinery and other industrial equipment. The internal gear teeth allow for efficient torque transmission and precise movement control within the machinery. The selectable internal clearance provides flexibility to adjust the bearing's performance characteristics based on specific operational requirements, ensuring optimal functionality and longevity. With effective sealing, the bearing protects against dust, dirt, and moisture ingress, maintaining reliability even in harsh environments. The lubrication nipple positioned on the ring without teeth facilitates easy maintenance, enabling timely lubrication to enhance performance and extend service life.

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

Applications

Hoisting machinery, construction machinery, material handling machinery, mining machinery, metallurgical machinery, medical instruments,ships and warships, radar,wind turbine

QIBR Model Selection

Filters

Gear P.C.D.

Gear type

Outer diameter (Da)

Weight

Inner diameter (di)

NO.	Product Number	Gear P.C.D.	Gear type	Outer diameter (Da)	Weight	Inner diameter (di)
1	VSI 20 0414 N	335 mm	Internal Gear	486 mm	31 kg	325 mm
2	2VSI 20 0544 N	456 mm	Internal Gear	616 mm	42 kg	444 mm
3	VSI 20 0644 N	558 mm	Internal Gear	716 mm	50 kg	546 mm
4	VSI 20 0744 N	660 mm	Internal Gear	816 mm	58 kg	648 mm
5	VSI 20 0844 N	752 mm	Internal Gear	916 mm	69 kg	736 mm
6	VSI 20 0944 N	856 mm	Internal Gear	1016 mm	76 kg	840 mm
7	VSI 20 1094 N	1000 mm	Internal Gear	1166 mm	91 kg	984 mm
8	VSI 25 0755 N	630 mm	Internal Gear	855 mm	119 kg	610 mm
9	VSI 25 0855 N	730 mm	Internal Gear	955 mm	137 kg	710 mm
10	VSI 25 0955 N	830 mm	Internal Gear	1055 mm	149 kg	810 mm
11	VSI 25 1055 N	930 mm	Internal Gear	1155 mm	165 kg	910 mm

Features and advantages of QIBR VSI series four-point contact ball slewing bearings

The QIBR VSI 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 VSI Series four-point contact ball slewing bearings

With their internal gear design, the QIBR VSI 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 VSI Series four-point contact ball slewing bearings can handle multi-directional loads

The QIBR VSI series four-point contact ball slewing bearings are designed to handle multi-directional loads simultaneously, delivering superior performance in dynamic and complex load environments. This makes them particularly well-suited for applications involving frequent rotation and oscillation, such as cranes and wind turbines.

3. Tailored solutions of QIBR VSI series four-point contact ball slewing bearings

QIBR offers customization services for the VSI 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 four-point contact ball slewing bearings VSI series

1. Improvement of bearing material characteristics

QIBR’s VSI series four-point contact ball slewing bearings can incorporate high-temperature isolating blocks and similar advanced materials to increase load-bearing capacity and operational longevity under demanding conditions significantly.

2. Improvement of bearing rotational accuracy

QIBR four-point contact ball slewing bearings VSI 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 VSI 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 VSI 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 short, optimizing materials, precision, and anti-corrosion treatments can greatly enhance the performance of QIBR VSI series four-point contact ball slewing bearings to satisfy stringent application demands.

Main application fields of QIBR four-point contact ball slewing bearings VSI series

Hoisting machinery

The QIBR VSI 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 VSI 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

Designed for precision and reliability, the QIBR VSI series four-point contact ball slewing bearings are applied in carousels, guaranteeing safe, smooth, and stable rotational operation.

Heavy machinery

The QIBR VSI series four-point contact ball slewing bearings are designed to withstand heavy radial and axial loads, making them perfect for use in heavy-duty machinery.