The so-called cage is actually a small component inside the bearing, which is used to fix and guide the rolling elements. Simply put, it is to keep the balls or rollers in their own tracks inside the bearing, so as not to deviate, collide or even get stuck.
The importance of the cage lies in that it determines the performance and life of the bearing. Without a cage, the rolling elements inside the rotating body may wear out prematurely due to extrusion and friction, thereby shortening the service life of the bearing. The cage can also reduce friction and reduce heat accumulation, thereby improving work efficiency.
Bearing cages in various situations
01
High-speed rotation
In high-speed rotating equipment, the cage is particularly important. Because high-speed operation will bring huge centrifugal force and friction, the cage can help evenly distribute these forces and keep the system stable.
02
High-precision equipment
Such as precision machine tools, medical equipment, etc., these equipment require high-precision operation, and the slightest error may cause product quality problems. The cage can effectively reduce the operation error and improve the working accuracy of the equipment.
03
Harsh Environment
In extreme environments such as high temperature, high pressure, and corrosive environments, cages made of specific materials can provide additional protection and extend the life of the equipment. Omitting the cage may cause direct contact between the rolling elements, which in turn increases friction, temperature, and may even lead to sudden failure. It can not only extend the life of the equipment, but also improve work efficiency and precision. In the face of some special environments and high-demand application scenarios, the cage is even more indispensable. Therefore, from the perspective of safety and long-term, the cage is by no means a small part that can be omitted.

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