CXE mainly produces rolling bearings, the material is mainly bearing steel, stainless steel, ceramic bearings:

1.stainless steel bearings:
CXE bearings produce a full range of stainless steel bearings : AISI 440C,AISI 440,AISI 420,AISI 304,AISI 316,AISI 316L
The specific material differences are summarized in the table below:

Corrosion resistance ranking：
The following is the ranking of anti-rust performance for stainless steel AISI 440C, AISI 440, AISI 420, AISI 304, AISI 316, and AISI 316L：

First place: AISI 316L stainless steel is an ultra-low carbon austenitic stainless steel, with a carbon content of ≤0.03%, chromium content of 16%-18%, nickel content of 12%-15%, and molybdenum content of 2%-3%. Due to its ultra-low carbon characteristic, 316L stainless steel does not produce intergranular corrosion after welding and has excellent corrosion resistance, especially performing well in chloride environments. It is often used in harsh corrosive environments such as marine and chemical industries.

Second place: AISI 316 stainless steel is also an austenitic stainless steel, with a carbon content of no more than 0.08%. The contents of chromium, nickel and molybdenum are similar to those of 316L. It is second only to 316L in terms of corrosion resistance and also has excellent resistance to chloride corrosion. It is suitable for applications in the food industry, pharmaceutical industry and surgical instruments, etc.

Third place: AISI 304 stainless steel is the most common austenitic stainless steel, with a carbon content of ≤0.08%, chromium content of 18% - 20%, and nickel content of 8% - 10.5%. It has good corrosion resistance in general environments, such as atmospheric and freshwater environments, but its resistance to chloride corrosion is slightly inferior to that of 316 and 316L, and it is prone to rust in environments with high chloride content, such as coastal areas.

Fourth place: AISI 440C stainless steel is a high-carbon martensitic stainless steel with a carbon content of 0.95% - 1.20% and a chromium content of 16.00% - 18.00%. It features high hardness and good corrosion resistance, especially in oxidizing media. However, its overall corrosion resistance is inferior to that of austenitic stainless steels like 304 and 316. In damp or highly corrosive environments, its rust prevention performance will decline.

The fifth place: 420 stainless steel is a martensitic stainless steel with a carbon content of 0.15% - 0.40% and a chromium content of 12.00% - 14.00%. Its corrosion resistance is of medium level, slightly inferior to that of 440C. It is mainly used for manufacturing tableware, surgical instruments, etc. After surface treatment, the corrosion resistance of 420 stainless steel is stronger than that of 440C but weaker than that of 304.

The sixth place: AISI 440 stainless steel is also a martensitic stainless steel, with a carbon content of 0.15% - 0.40% and a chromium content of 16.00% - 18.00%. Its corrosion resistance is similar to that of 420, but due to its higher carbon content, it has greater hardness and relatively poorer toughness, and is slightly inferior to 420 in terms of corrosion resistance.

2.ceramic bearings
The ceramic bearings produced by CXE mainly consist of materials such as alumina (Al2O3), zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (SiC). The performance comparison is as follows：