A 4-point contact bearing is a type of separated bearing, which can also be considered as a set of bearings and can withstand bidirectional axial loads. Its inner and outer raceways have peach shaped cross-sections. When there is no load or only pure radial load, the steel ball and the ring will present a four point contact, which is also the origin of its name. When only subjected to pure axial load, the steel ball and ring exhibit a two-point contact. This type of bearing not only can withstand torque loads, but also has the functions of single row angular contact ball bearings and double row angular contact ball bearings.

In practical applications, 4-point contact bearings can only ensure normal operation when forming two-point contact, so they are particularly suitable for situations where there is two-point contact under pure axial loads or composite loads with large axial loads. Due to its high limit speed, this type of bearing is also very suitable for high-speed operation.

For example, in the field of machine tool processing, 4-point contact ball bearings are widely used in high-speed operation and continuous working environments due to their high speed bearing capacity and high rigidity, ensuring high-precision working effects. At the same time, its dust-proof, waterproof and other characteristics also enable it to adapt to complex working environments, improving the safety and stability of machine tool processing.

Overall, 4-point contact bearings are a type of bearing with comprehensive functionality and superior performance, capable of meeting various complex and demanding work requirements. However, please note that for specific application scenarios and selection issues, it is recommended to consult a professional bearing manufacturer or engineer to ensure that the selected bearing type meets practical needs.