LEGEND  Stainless ball bearings

d = Inner diameter in mm
D = Outer diameter in mm
B = Bearing width in mm

Cr (N) = Dynamic load rating in Newton (N)
Cor (N) = Static load rating in Newton (N)

N = kg * 9.8 
kg = N / 9.8

rpm = maximum rounds / minute * 1000

Material: SS = Edelstahl  

 

 

Bearings listed here are also available with Z-shields (Z, ZZ) or RS-seal (RS, 2RS). Load ratings of stainless steel bearings are approximately 70% of chromium steel bearings. The maximum speed limit of 2RS bearings is approximately 50% of open or ZZ executions.

 

Material 

Material No. 

Chemical composition in % 

Equivalent

Si  Mn  Cr  Mo
chrom. steel SUJ2  0,95 ~ 1,10  0,15~0,35  <=0,50  <=0,025  <=0,025  1,30 ~ 1,60  <=0,08  SAE 52100
stainl. steel SUS 440 C  0,95 ~ 1,20  <=1,00  <=1,00  <=0,040  <=0,030  16,00 ~ 18,00  <=0,75  AISI 440 C