Four-point angular contact ball bearings produced by FV are ready for shipment.

May 10, 2024

FV Company has just produced a batch of four-point angular contact ball bearings QJ212N2MA for its European customers, with a contact angle of 35° and a brass retainer. This model can usually be delivered within 15 days. Because this model of bearing is frequently used, we have stocked both the inner and outer rings.

In fact, four-point angular contact ball bearings are often used in rolling mills. The following is an introduction to the application of angular contact balls in rolling mills.

As an important piece of equipment in modern industrial production, a rolling mill's stability and working efficiency are directly related to production efficiency and product quality. As a high-performance rolling bearing, four-point angular contact ball bearings play an irreplaceable role in rolling mills with their unique structure and excellent performance.

1. Structural characteristics and performance advantages of four-point angular contact ball bearings

Four-point angular contact ball bearing is a special kind of rolling bearing. Its structural characteristics are mainly reflected in the following aspects:

Unique structure: The inner and outer raceways of the four-point angular contact ball bearing have a peach-shaped cross-section. In the absence of any load or under a pure radial load, the steel ball and the ring inevitably exhibit a four-point contact. This unique structure allows the bearing to have higher stability and load-bearing capacity when bearing loads.

Can withstand bidirectional axial loads: The designed raceway of four-point angular contact ball bearings can be used to support axial loads in both directions, which allows the bearings to exhibit excellent performance when withstanding complex load environments.

High allowable rotation speed and smooth operation: The allowable rotation speed of four-point angular contact ball bearings is very high, and the operation is smooth. It enables the bearings to maintain stable working conditions in high-speed rolling mills, thereby improving the working efficiency of the rolling mill.

Small axial space occupied: Compared with double-row bearings, four-point angular contact ball bearings occupy significantly less axial space. It allows the bearings to be more flexibly applied to various compact space structures in design, improving the overall design efficiency of the equipment.

Based on the above structural characteristics, four-point angular contact ball bearings have the following advantages in performance:

High load-bearing capacity: Four-point angular contact ball bearings can hold large radial loads and bidirectional axial loads, meeting the needs of rolling mills under heavy-load conditions.

High stability: The unique four-point contact structure makes the bearing more stable when bearing load and decreases the vibration and noise of the bearing during operation.

Long life: Due to the high load-bearing capacity and stability of the bearing, its service life has been significantly improved.

2. Application of four-point angular contact ball bearings in rolling mills

As an important equipment for metal processing, the rolling mill needs to withstand complex loads and high-speed operating conditions during its working process. Therefore, the performance requirements for bearings are very high. Four-point angular contact ball bearings have been widely used in rolling mills due to their unique structure and excellent performance.

Rolling mill roll system support: In the rolling mill roll system support, four-point angular contact ball bearings are key components and bear the radial load and axial load from the rolling process. Its high load-bearing capacity and stability ensure the stable operation of the rolling mill under heavy load conditions.

Transmission system: In the transmission system of the rolling mill, four-point angular contact ball bearings also play an important role. They are used to connect the motor to the roller, transmitting power and torque. Because the bearing allows high rotation speed and smooth operation, the transmission system can work efficiently and stably.

Rolling mill stand: The rolling mill stand is an important component that supports the entire rolling mill. Its stability and accuracy directly affect the rolling effect of the rolling mill. Four-point angular contact ball bearings are widely used in the support and positioning of the frame to ensure the stability and accuracy requirements of the frame.

In practical applications, four-point angular contact ball bearings perform extremely well in rolling mills. They can withstand heavy loads, high-speed operation, and have a long service life. At the same time, due to the bearing's compact structure and small footprint, the overall design of the rolling mill is more flexible and efficient.

As a high-performance rolling bearing, four-point angular contact ball bearings play an irreplaceable role in rolling mills. Its unique structure and excellent performance enable the bearing to meet the needs of rolling mills under heavy loads and high-speed operation conditions. Four-point angular contact ball bearings are increasingly used in emerging fields due to advancements in science, technology, and industry. In the future, with the continuous development of materials innovation, precision manufacturing, and other technologies, the performance of four-point angular contact ball bearings will be further improved. At the same time, through application expansion, innovation, and optimization.