Compared with ordinary bearings, stainless steel bearings not only have obvious advantages in material, but also are much more strict in technology and precision control than ordinary bearings. In the working process, stainless steel bearings work stably, have low noise, corrosion resistance and are widely used.
Product characteristics
The bearing ring and rolling element are made of AISI SUS440C stainless steel (domestic brand: 9Cr18Mo, 9Cr18) through vacuum quenching and tempering treatment, and the cage and seal ring framework are made of AISI304 stainless steel (domestic brand: 0Cr18Ni9). Compared with ordinary bearing steel, stainless steel bearing has stronger anti rust and anti-corrosion properties. The appropriate lubricant and dust cover can be used in the environment of - 60 ℃ ~ + 300 ℃. Stainless steel deep groove ball bearing can resist the corrosion caused by humidity and some other media. This kind of single row deep groove ball bearing, like the standard deep groove ball bearing made of carbon chromium (rolling bearing) steel, has a very deep bearing raceway, and the fit between the bearing raceway and the ball is very high. Stainless steel bearings are widely used in food processing, medical devices and pharmaceutical machinery because of their high mechanical strength and large load capacity
Main purpose
Medical devices, cryogenic engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery.
classification
440 stainless steel bearing series
304 stainless steel bearing series
316 stainless steel bearing series
characteristic
1. Excellent corrosion resistance: stainless steel bearings are not easy to rust and have strong corrosion resistance.
2. Washable: stainless steel bearings can be washed down without re lubricating oil to prevent rust.
3. Can run in liquid: due to the materials used, we can run bearings and bearing seats in liquid.
4. Slow drying rate: AISI 316 stainless steel does not need oil or grease anti-corrosion protection. Therefore, if the speed and load are low, lubrication is not required.
5. Hygiene: stainless steel is natural and clean without corrosion.
6. High heat resistance: stainless steel bearings are equipped with high-temperature polymer cages or cages without a complete complementary structure, which can operate in a higher temperature range of 180 ° f to 1000 ° F. (high temperature resistant grease is required)
Causes of fracture failure of stainless steel bearing
The main causes of fracture failure of stainless steel bearing are defect and overload. When the external load exceeds the material strength limit and causes the part to break, it is called overload fracture. The main cause of overload is the sudden failure or improper installation of the host. Defects such as microcracks, shrinkage cavities, bubbles, large foreign objects, overheated tissue and local burns of bearing parts will also cause fracture at the defect during impact overload or violent vibration, which is called defect fracture. It should be pointed out that in the manufacturing process of bearings, the presence of the above defects can be correctly analyzed by instruments in the factory re inspection of raw materials, quality control of forging and heat treatment, and processing process control, and the control must be strengthened in the future. But generally speaking, most of the fracture failures of stainless steel bearings are overload failures.
