Rolling bearing and method of making same

Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...

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148906, 148319, C22C 3822, C21D 940, C23C 822

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active

055318363

ABSTRACT:
There is disclosed herein a steel alloy bearing having an inner race, an outer race and rolling elements comprising: at least one of said elements being made of alloy steel which constitutes from 10.0 to 18.0 wt % chromium and 0.05 to 0.30 wt % carbon, 0.10% to 2.0 wt % molybdenum, 0.15 to 1.0 wt % silicon, 0.20 to 1.5 wt % manganese, 0.8 to 1.2 wt % tungsten, 0.20 to 0.30 wt % vanadium, 0.2 to 1.0 wt % of nickel, and the remainder of said steel alloy being iron; and said at least one element having been carburized in a carbon atmosphere containing from 0.25 to about 0.40 % carbon potential.

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Dew-Technische Berichte, vol. 12, No. 1, 1972 Krefeld, DE, p. 51 NN `Aufkohlung eines martensitischen Chromstahles . . . `FIGS. 9,10.
P. M. Unterweiser et al. `Worldwide Guide to Equivalent Irons and Steels,` 1987, ASTM, 2nd Edition, Ohio, US, pp. 6-108.

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