What materials are your precision/micro bearings made of?

Our precision and micro bearings are primarily manufactured using high-quality materials selected for durability, performance, and cost-effectiveness. The most common material is GCR15 (SUJ2) bearing steel, known for its high hardness, wear resistance, and fatigue strength, making it ideal for standard industrial applications. For environments requiring corrosion resistance, we offer 440C stainless steel bearings, which provide excellent rust protection and are suitable for humid, wet, or outdoor conditions. For specialized needs, we can also use other materials like ceramic balls for high-speed or low-friction applications, or chrome-plated steel for enhanced surface protection. All materials are sourced from certified suppliers and undergo strict quality checks to ensure they meet international standards.