Introduction to preload of 6324c3 deep groove ball bearing

Due to the gap in 6324c3, the inner and outer rings will move relative to each other under load, which will reduce the hardness of the bearing, cause axial and radial vibration of the shaft, and affect the working accuracy and life of the machine. In order to reduce this kind of vibration, for high-precision and high-speed mechanical equipment, 6324c3 is often installed with a pre-tightening method, that is to say, a certain radial or axial load is given to the bearing during installation to eliminate it. The original clearance can also make the 6324c3 bearing body and the inner and outer rings produce elastic deformation, thereby effectively avoiding relative movement between the inner rings.

1. The purpose of preloading

Preloading the spindle bearing can eliminate the original clearance of the ball and raceway and form elastic deformation. When 6324c3 bears external load, the bearing will have a certain rigidity. When installing a bearing that is opposite to the external load, it is not There will be a gap between the ball and the raceway due to the external load, thereby improving the rotation accuracy of the spindle, increasing the rigidity of the spindle and prolonging the service life, and also reducing noise.

2. The principle of preload
The size of the preload is generally determined according to the rotation accuracy of the spindle, the size of the work load, and the level of speed.
1. If the spindle load is small, the rotation accuracy is high, and the speed is low, a larger preload can be adopted.
2. If the working load is large and the rotation speed is high, a small preload should be adopted because it is prone to heat expansion.

The 6324c3 has a reasonable structure design and should also be advanced in order to have a longer bearing life. The rationality, stability and advancement of each processing technology of 6324c3 will also affect the life of the bearing. Among them, the heat treatment and grinding processes that affect the quality of 6324c3 often have the most direct relationship with the failure of the bearing. Research on the modified layer of 6324c3 working surface shows that the manufacture of bearings generally requires multiple processing procedures such as forging, heat treatment, grinding, turning and assembly. The grinding process has a very close relationship with the surface quality of the bearing.

The correct installation of 6324c3 affects its life, accuracy and performance. Therefore, the design and assembly department must fully study the installation of deep groove ball bearings. Must be installed in accordance with operating standards.

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