The main bearing materials in our shop are: [bearing steel] (bearing special steel) and [stainless steel]. Bearing grades are mainly: ordinary grade; Motor level; Fine quality.
[Bearing steel] ordinary grade for bearing steel quality, national standard basic grade. Dimensional accuracy less than ±0.05mm, low speed, suitable for low speed, low requirements of the environment. Such as: low speed transmission equipment, casters, baby carriage, toy car, etc.
[Bearing steel] Motor grade for bearing steel, national standard P0Z2 or above. Dimensional accuracy is less than ±0.01mm, feel smooth, low noise, long service life. Suitable for motor, toy model, automobile, electric tools, pneumatic tools, telecommunication equipment, fitness equipment, sports equipment and so on.
[Bearing steel] Quality grade for bearing steel quality, national standard P6 above. Dimensional accuracy is less than ±0.005mm [can replace import], feel smooth, high speed, low noise, long service life. It is suitable for high speed motor, instrument and meter, precision equipment, high-grade toy model and other fields with high requirements.
[Stainless steel] motor grade and [stainless steel] fine grade: stainless steel 440C material, size, accuracy, quality grade requirements and the basic [bearing steel] motor grade, fine grade the same, the main difference is that stainless steel bearing has waterproof, rust, corrosion, acid and alkali resistance, strong stability, maintenance free, long service life, no rust characteristics. Widely used in food machinery, medical equipment, instruments, high-grade crafts, high-grade fishing gear, fishing wheel, high-grade toys and so on. Please do not use magnetism to judge the merits and demerits of stainless steel bearings. Stainless steel characteristics and judgments are detailed in the communication area of the store. Don't rust is the hard truth.
Non-magnetic 304 stainless steel bearing: non-magnetic 304 stainless steel bearing, its pH resistance is better than stainless steel 440C material. But because of the material characteristics, the hardness is very low, its product feel and quality appearance is poor, only suitable for low speed, low load use. Can not be used in the motor, please understand before purchase. There are introductions in the exchange area of the store.