What is the difference between bearing steel and stainless steel

These are fundamentally two concepts.

Bearing steel is named after the application, whereas stainless steel is named after the characteristic.

It's like asking what is the difference between drinking water and pure water.

If you have to say, the bearing can be made of stainless steel, but the effect is not good, because the bearing needs wear resistance, and it is generally made of high-carbon steel.

Whereas, stainless steel is alloy steel.

The main feature is chemical resistance, not mechanical properties.

I don't know much about these two materials, but in terms of terminology, bearing steel generally has a higher carbon content to enhance wear resistance, while stainless steel generally has a higher CR content of more than 12%, mainly to take advantage of its corrosion resistance.

I don't know much about these two materials, but in terms of terminology, bearing steel generally has a higher carbon content to enhance wear resistance, while stainless steel generally has a higher CR content of more than 12%, mainly to take advantage of its corrosion resistance.

Shaft side bearing steel: steel used to make balls, rollers, and bearing rings. Bearing steels have high and uniform hardness and wear resistance, as well as high elastic limits.

It is one of the most stringent steel grades in all steel production, with strict requirements for the uniformity of chemical composition, the content and distribution of non-metallic inclusions, and the distribution of carbides.

Stainless steel: It is the abbreviation of stainless acid-resistant steel, and the steel grade that is resistant to weak corrosive media such as air, steam, and water or has stainless steel is called stainless steel.

The difference between bearing steel and stainless steel:

1. Content: The carbon content of bearing steel is relatively high, while the chromium content of stainless steel is generally relatively high, more than 12%;

2. Characteristics: Bearing steel has high and uniform hardness and wear resistance, as well as high elastic limit, while stainless steel has high corrosion resistance;

3. Uses: The bearing steel main bridge is used to make balls, rollers and bearing rings, while stainless steel is mainly used in the construction field as building materials and stainless steel tools;

Bearing steel generally has a relatively high carbon content to enhance wear resistance, while stainless steel generally has a relatively high CR content of more than 12%, mainly to take advantage of its corrosion resistance. Compared with ordinary bearings, stainless steel bearings not only have obvious advantages in material, but also in terms of process and precision control, which are much stricter than ordinary bearings.

In the working process, the stainless steel bearing works stably, with low noise, corrosion resistance, and is widely used. The bearing ring and rolling element material are made of AISI SUS440C stainless steel (domestic number: 9Cr18Mo, 9Cr18) after vacuum quenching and tempering, and the cage and sealing ring skeleton material are made of AISI 304 stainless steel (domestic number:

1cr18）。

Compared with ordinary bearing steel, stainless steel bearings have stronger rust and corrosion resistance, and can be used in an environment of -60 +300 with the right lubricant and dust cap. Stainless steel deep groove ball bearings are resistant to corrosion caused by moisture and several other media.

These single row deep groove ball bearings have the same deep groove groove grooves as standard deep groove ball bearings made of carbon-chromium (rolling bearing) steel, and the coordination between the bearing raceway and the ball is extremely high. Stainless steel bearings are widely used in food processing, medical equipment, and pharmaceutical machinery due to their high mechanical strength and large load capacity.