Bearing steel can be classified into several main categories based on its composition and properties:
1. Carbon steel bearing steel: Carbon steel bearing steel is the most common type of bearing steel, mainly composed of carbon and iron, with a carbon content typically ranging from 0.1% to 1.5%. Carbon steel bearing steel has good workability, strength, and hardness, making it suitable for bearing applications under general load and speed conditions.
2. Alloy steel bearing steel: Alloy steel bearing steel adds a certain amount of alloying elements such as chromium, molybdenum, cobalt, etc. on the basis of carbon steel to improve its strength, hardness, and wear resistance. Alloy steel bearing steel is commonly used in bearing applications with high speed, high load, and high wear resistance requirements.
3. Stainless steel bearing steel: Stainless steel bearing steel is mainly composed of elements such as iron, chromium, nickel, etc. It has good corrosion resistance and oxidation resistance, and is suitable for bearing applications in humid and corrosive environments. Stainless steel bearing steel is commonly used in food processing equipment, medical devices, and other places with high hygiene requirements.
4. Special steel bearing steel: Special steel bearing steel refers to bearing steel with special components and properties, such as high-speed steel, tool steel, etc. Special steel bearing steel typically has good heat treatment performance, high-temperature strength, and wear resistance, making it suitable for bearing applications under special working conditions.
These are common classifications of bearing steel, and selecting appropriate bearing steel materials based on different working conditions and requirements can ensure that bearings have good performance and reliability.