Miniature bearing material

Miniature bearing material miniature bearing outer ring, inner ring and ball materials is very important, this will greatly affect the performance of the rolling ball bearing, bearing inner ring and outer ring and ball contact part to repeatedly under extreme pressure of more than 1000 mpa. Under the repeated stress is to have long life, such as species, cleanliness, hardness of the material is very important. Bearing the main use of high carbon chromium bearing steel and the corrosion resistance of martensitic stainless steel as the material of rail wheel and the ball. High carbon chromium bearing steel is using high quality vacuum degassing high carbon chromium bearing steel ( JIS G 4805/SUJ 2、AISI/SAE E52100) And quite a material, can guarantee the quenching hardness, excellent resistance to load, long life and low noise characteristics. Use of stainless steel is the page and to develop 'DD400' material, than SUS440C with higher quenching hardness, longer life and more excellent load resistance. In addition, the carbon has spherical fine dispersion characteristics, noise characteristics of similar to chrome steel can be obtained. In terms of corrosion resistance, based on ASTM - The experimental results show that the A380 'DD400' is equal to SUS440C corrosion resistant properties. In addition, in recent years to adapt to the demand for long life and low noise, bearing the company also produces ceramic material of rolling ball bearing. The orbit of the bearing wheel using previous chromium bearing steel, use ceramic ball ( Silicon nitride) 。 Compared with the previous chromium bearing steel ball, with the advantages of low noise and long life with. In addition, the silicon nitride peculiar to the connectivity of a close to zero, Insulation performance) To prevent the bearing inner electricity environment when using the electric corrosion is also very effective. Light weight compared with bearing steel, ceramics, in the aspect of reducing torque is also worth looking forward to.