Four-Point Contact Ball Bearing

Characteristics and advantages of QIBR QJ series angular contact ball bearings

The QIBR QJ series angular contact ball bearings have multiple characteristics and advantages, which can solve key problems in various fields, mainly reflected in the following aspects;

1. QIBR QJ series angular contact ball bearings have the characteristic of high axial positioning accuracy

The QJ series angular contact ball bearings can provide very small axial positioning tolerances, meeting the high requirements for axial positioning accuracy in applications.

2. The QIBR QJ series angular contact ball bearings have the characteristic of optimized design structure

The QIBR QJ series angular contact ball bearing consists of an integral outer ring, two inner rings, a set of spheres, and an outer ring guide cage. The outer raceway adopts a Gothic arc design, and the inner raceway is divided into two halves for easy assembly.

3. The QIBR QJ series angular contact ball bearings have the characteristic of strong load-bearing capacity that can withstand bidirectional loads

The QJ series angular contact ball bearings can withstand both radial and bidirectional axial loads. In theory, each ball has four contact points with the bearing ring, which can evenly distribute the load.

4. QIBR QJ series angular contact ball bearings have the characteristic of saving axial space

The QIBR QJ series angular contact ball bearings can be regarded as a two in one combination of two single row angular contact ball bearings, with smaller axial dimensions than double row angular contact ball bearings. Suitable for situations with limited space, such as industrial gearboxes, locomotive drive systems, etc.

Performance improvement and solutions for QIBR QJ series angular contact ball bearings

1. Effectively improving material properties and enhancing load capacity

The QJ series angular contact ball bearings use high-quality steel to manufacture the inner and outer rings and ball bearings in production. The surface hardness and material properties are improved through processes such as vacuum heat treatment, enhancing the bearing's load capacity and service life. In addition, the QJ series angular contact ball bearings, due to their special structure, can accommodate more rolling elements, improving their load capacity. By improving the production process, reducing the ring thickness and outer diameter of the bearing, further reducing weight and enhancing load capacity.

For example, adopting thin-walled design can reduce material usage and improve economy while maintaining strength.

2. Optimize internal structural design

The QIBR QJ series angular contact ball bearing consists of an integral outer ring, two inner rings, a set of spheres, and an outer ring guide cage. The raceway design of its outer ring allows for independent definition of contact angle (usually 35 °) and axial clearance, which makes the bearing perform well in terms of load-bearing capacity and service life.

3. Improve manufacturing accuracy and load capacity

The production of QJ series angular contact ball bearings adopts advanced processing equipment and technology from abroad, such as precision grinding, ultra precision grinding, etc., to improve the geometric accuracy of the inner and outer rings and balls, reduce processing errors, and thus improve the rotational accuracy and operational stability of the bearings. In addition, compared with traditional single row angular contact ball bearings, QJ series angular contact ball bearings can provide higher load-bearing capacity in the same space, especially in applications that require bearing bidirectional axial loads, showing excellent performance.

4. Improve performance materials

The QJ series angular contact ball bearings are made of high-performance materials such as heat-resistant steel, which can significantly improve their operating temperature and service life, especially in high temperature and high-speed operating environments.

5. Personalization

Provide personalized structural dimension solutions for QJ series angular contact ball bearings to meet specific performance requirements for different occasions. This method not only enriches the standards of bearings, but also provides effective guidance for manufacturers to meet the personalized needs of users.

In short, by optimizing materials, internal structure, manufacturing accuracy, personalized design and other measures, the performance of QJ series angular contact ball bearings can be significantly improved to meet increasingly demanding application requirements.

The main application areas of QIBR QJ series angular contact ball bearings

The QJ series angular contact ball bearings are widely used in the following fields:

Gearbox

Due to its unique design, QJ bearings are capable of withstanding bi-directional axial loads within a limited space, making them highly suitable for use in industrial gearboxes.

Locomotive drive system

QJ bearings are widely used in locomotive drive systems due to their high precision and high stiffness.

Compressor

QJ bearings also have good applications in the field of compressors, which can meet the requirements of high precision and high stiffness in this field.

Robot

With the development of robot technology, the requirements for bearings are becoming increasingly high, requiring bearings to be small in size, light in weight, and have a long service life. The QJ series bearings have been optimized to significantly reduce size while ensuring load capacity, making them highly suitable for application in the field of robotics.

Rolling mill roll positioning

The QJ series four point angular contact ball bearings are highly suitable for roll positioning in rolling mills due to their ability to withstand radial and bi-directional axial loads, as well as their smaller size compared to double row angular contact ball bearings.

Overall, the QJ series angular contact ball bearings are widely used in gearboxes, locomotive drive systems, compressors, robots, and rolling mills due to their unique design and excellent performance.