GENERAL BALL BEARING MATERIAL
The rings, balls, needles and rollers of BYWB bearings can be made of refining bearing steel AISI52100, stainless steel AISI440C, AISI420, etc.
–Cages are normally punch-pressed from brass strips H62 or steel strips 08, SPCC BQB402, as well as stainless steel strips AISI304, AISI302, fiber reinforced phenolic resin, plastics or copper stock, etc;
–Shields can be made of Japanese SPCC JISG3141 or stainless steel AISI304 or AISI302.
–Seals: synthetic rubber hot pressed with phosphatizing steel (AISI304 or AISI302 may used for stainless steel bearings) skeleton.
The chemical composition of bearing steel and stainless steel are listed as follows: