Patent ID: 6855214
Filing Date: 2005-02-15
Classification: C22C,F16C,Y10T

Abstract:
1. An anti-friction bearing for a rotary support section of a computer peripheral device wherein at least one component is made of martensitic stainless steel composed of 0.60 to 0.75% by weight carbon, 10.5 to 13.5% by weight chromium, 1.0% by weight or less silicon, 0.3 to 0.8% by weight manganese, the remainder of the composition being iron and inevitably introduced impurities, containing eutectic carbide particles of 10 μm or less in diameter, having titanium and oxygen concentrations of 10 ppm or less respectively, having a hardness of HRC 58 or higher, and having more than 0% and less than 10% by volume retained austenite.