The bearing ring and rolling body material are made of AlSI SUS440C, 316L or 304 stainless steel, and the cage and sealing ring skeleton material are made of AISI304 or 316L stainless steel. Compared with ordinary bearing steel, stainless steel bearings have stronger anti-rust and corrosion resistance. Choose suitable lubricants, dust covers, etc., and can be used in an environment of -60C~ 300C. Stainless steel bearings are widely used in various household appliances, motors, power tools, fitness equipment, fishing gear, high-end toys, semiconductors, petroleum, chemical, electronics, electroplating equipment, textiles, food, medical, navigation, aerospace, doors and windows furniture, bathroom and other fields due to high mechanical strength, large load capacity, high speed, and resistance to acid, alkali salt and gas erosion.