Ss6338 Zz 2rs Stainless Steel Ball Bearings

Ss6338 Zz 2rs Stainless Steel Ball Bearings include three kinds of stainless steel materials. They are 440c stainless steel, 304 stainless steel and 316L stainless steel.

Among them, 440c stainless steel have the strongest hardness, and this type of stainless steel bearing has the best mechanical properties. 304 stainless steel has good corrosion resistance and very little magnetic properties. 316L stainless steel has best corrosion resistance and is almost nonmagnetic. Please go to this page to learn more about material properties.




Material 440C Stainless Steel Bearings 304 Stainless Steel Bearings 316L Stainless Steel Bearings
Bore Dia (d)
190 mm
Outer Dia (D)
400 mm
Width (B)
78 mm
Closures Rubber Seals(2RS), Metal Shielded(ZZ) and Open type are available
Lubrication Grease, Oil, Dry are available
Highest temperature 300 Degrees F 400 Degrees F 400 Degrees F
Magnetic little no no
Hardness 58HRC 30HRC 30HRC
Corrosion Resistance
CO, C2 and C3 are available.
ABEC Grades 1, 3, 5, 7, and 9 are available.
Dynamic Load Rating (Cr) (Newtons) 377650290500290500
Static Load Rating (Cor) (Newtons) 323050248500248500
Max Speed (X1000 RPM) 3.933
Ball Qty 8
Ball Dia (Dw) 56.175
Weight (g) 34790
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