Patent ID: 6174085
Filing Date: 2001-01-16
Classification: F16C,Y10S

Abstract:
A linear guide bearing device comprising a rail, a bearing supported by said rail and rectilinearly movable along an axial direction of said rail, and rolling members interposed between said rail and said bearing to roll along with motion of said bearing,wherein at least one of said rail and said bearing is made of induction-hardened steel comprising 0.5 to 1.1 wt % of carbon, 0.05 to 0.25 wt % of silicon, 0.3 to 0.9 wt % of manganese, 0.1 to 0.5 wt % of chromium, 0.2 to 1.0 wt % of molybdenum, and residual portion as iron and unavoidable impurities, said induction-hardened steel having a total content of carbon, manganese, and molybdenum, which satisfies both:0.8.ltoreq.(C wt %-0.6).times.10+Mn wt % (1)(C wt %-0.6).times.10+Mn wt %+Mo wt %.ltoreq.2.0 (2)where C wt %, Mn wt %, and Mo wt % represent weight percentages of carbon, manganese, and molybdenum to said induction-hardened steel.