LEGEND Stainless ball bearings d = Inner diameter in mm Cr (N) = Dynamic load rating in Newton (N) N = kg * 9.8 rpm = maximum rounds / minute * 1000 Material: SS = Edelstahl
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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.
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Material |
Material No. |
Chemical composition in % |
Equivalent |
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C | Si | Mn | P | S | 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 |