Chemistry: electrical and wave energy – Processes and products
Patent
1985-12-19
1987-08-18
Demers, Arthur P.
Chemistry: electrical and wave energy
Processes and products
72 53, 148 115R, 427328, 4273837, 4273839, C25D 534
Patent
active
046875565
ABSTRACT:
A method of inhibiting stress corrosion cracking of a bearing 10 of the type installed on a shaft with an interference fit. The surface of the inner ring 16 is shot peened at least at and near the junctures 28,30 of the endwalls 22,24 with cylindrical inner surface 26. The shot peening is performed with sufficient intensity to produce residual compressive stress which offsets at least a portion of the tensile stress resulting from the installation interference fit. The shot peened surface is then coated with a thin metallic material. Finally, the inner bearing ring 16 is baked to remove hydrogen resulting from the coating.
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"Effect of Multiple Shot Peening/Cadmium Plating on High Strength Steel", Kohls, J. B. et al, AFWAL-TR-80-4005, Apr. 1980, 51 pages.
Kirkham Kathleen E.
Sutton Robert F.
Demers Arthur P.
Field Harry B.
Ginsberg Lawrence N.
Hamann H. Fredrick
Rockwell International Corporation
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