The high performance stainless steel bearings can provides not only with the cleanliness and corrosion resistance characteristic also with the high accuracy and excellent wear resistance compare to the high carbon chrome steel bearings.The rings and balls are made a of the material as a standard structure of stainless steel bearings. The rings and balls are made of the material of AISI440C(9cr18Mo or 9Cr18). The cage and the framework of seal adoption the AI304 or AI315.

Freerun Bearing Supply all kinds of ball bearing with material of Stainless Steel, such as AISI304,AISI316,AISI440B.Most of our stainless miniature bearings and thin section bearings are available in 440 grade stainless steel 9Cr18. 

( The Material is different calling in different companies,.Rings was calling GB 108Cr17/ DIN X105CrMo17-1.4301 / AISI440, Cage or shields was calling GB 0CR18Ni9 / DIN X5CrNi18-10-1.4301 / AISI304)

440 Stainless Steel Bearing - Application: Fishing reel,Medical apparatus and instruments, marine, cryogenic engineering, optical instrument, high-speed machine, high-speed electric machinery, printing machinery, food equipment..

Advantage:Low density, strong solidity, low friction coefficient, abrasion resistance, magnetic resistance, acid and alkali resistance, good resistance to wear and tear, electric insulation, self-lubrication.