Double row angular contact ball bearing 30 and 38 series

Application of Double row angular contact ball bearing 30 and 38 series in high-speed electric spindle system

The high-speed electric spindle system is the core component of high-end machine tools such as CNC machine tools and machining centers. It is responsible for converting electrical energy into mechanical energy and driving the tool to rotate at high speed to achieve high-precision and high-efficiency processing. In this process, the high-speed electric spindle system needs to withstand extremely high speed, load and vibration, so the performance requirements of the bearing are extremely high. Double row angular contact ball bearings have unique structural and performance advantages and have gradually become an indispensable part of the high-speed electric spindle system.

1. Advantages
Bearing bidirectional axial loads: Double row angular contact ball bearings can withstand radial loads and bidirectional axial loads at the same time, which is particularly important in high-speed electric spindle systems. Because the high-speed electric spindle will be subjected to forces and vibrations from all directions during operation, double row angular contact ball bearings can stably withstand these forces to ensure the stable operation of the spindle.
High speed performance: Double row angular contact ball bearings are made of ultra-clean steel. After a special heat treatment process, they can maintain stable performance under high-speed rotation. The precision lubricating grease made by its grease technology can extend the life and performance of the bearings, so that the bearings can still maintain stable operation under high-speed operation.
Strong sealing: Double row angular contact ball bearings use advanced sealing technology, which can resist pollution even in very harsh environments and ensure that the performance is not reduced. This is crucial for high-speed electric spindle systems, because the spindle system is often in a high-temperature, high-speed, and high-load working state. If the bearing is not well sealed, it is easy to be contaminated and damaged.
Strong stability: Double row angular contact ball bearings have strong stability and can maintain stable operation even in high-speed rotation and growth environments. This is very important for high-speed electric spindle systems because the stability of the spindle directly affects the processing accuracy and surface quality.

2. Installation configuration
Bearing cleaning: The bearings need to be cleaned before installation to ensure that there are no impurities and contaminants inside the bearings.
Grease application: During the installation process, an appropriate amount of grease needs to be applied to reduce the friction and wear of the bearings.
Bearing positioning: The bearing needs to be accurately positioned during installation to ensure the matching accuracy between the bearing and the spindle.
Bearing preload: The bearing needs to be preloaded after installation to improve the rigidity and stability of the bearing.

3. Actual application effect
The double-row angular contact ball bearing has a significant application effect in the high-speed electric spindle system. It can withstand high-speed rotation and heavy loads to ensure the stable operation of the spindle. It has strong sealing, can resist pollution and damage, and extend the service life of the bearing. It is also very stable and can improve processing accuracy and surface quality. Therefore, double-row angular contact ball bearings have been widely used in high-speed electric spindle systems and have become one of the core components of high-end machine tools.