Glossary

The material from which rolling bearings are manufactured plays a crucial role in their performance and durability.

• Question: What materials are rolling bearings typically made from?
  • Answer: Rolling bearings are made from various materials, here are the most important ones:
    • Bearing Steel (100Cr6): This is the most commonly used material for rolling bearings due to its high strength and good wear resistance.
    • Stainless Steel: Stainless steel bearings are corrosion-resistant and suitable for applications where moisture or other chemical agents are present in the environment. There are different types of stainless steel, such as AISI 440C or AISI 420.
    • Ceramic: Ceramic bearings use ceramic rolling elements that are lighter and harder than steel. They are resistant to high temperatures and offer lower friction, making them ideal for special applications. Additionally, they are resistant to almost all chemical agents. Rolling bearings are typically made from technical ceramics such as silicon nitride and zirconium oxide.

• Question: What role does heat treatment play in the manufacturing of rolling bearings?
  • Answer: Heat treatment is a crucial step in the manufacturing of rolling bearings. It influences the hardness, strength, and wear resistance of bearing components. Proper heat treatment can achieve the desired material properties to enhance the performance and durability of rolling bearings.

• Question: What factors should be considered when selecting the appropriate material for a rolling bearing?
  • Answer: When choosing the right material for a rolling bearing, factors such as operating conditions, temperature, load, and environment should be considered. The selected material should meet the specific requirements to ensure optimal performance.

• Question: What tests and inspections are conducted to ensure that the rolling bearing is made from the correct material?
  • Answer: In the incoming goods inspection, X-ray fluorescence analysis (XRF) equipment is used to analyze the chemical composition within a few seconds. Additionally, hardness testing equipment is used to ensure that heat treatment has been performed correctly.