Patent ID: 6391128
Filing Date: 2002-05-21
Classification: F16C,Y10S,Y10T

Abstract:
A method for producing a rolling bearing, which comprises preparing at least one race selected from the group consisting of an outer race and an inner race according to a method which comprises:(a) selecting at least one member selected from the group consisting of a &bgr; titanium alloy and a (&agr;+&bgr;) titanium alloy as a race material; (b) heating and keeping said race material at a temperature falling within the range of a &bgr; phase temperature of not lower than a &bgr; phase transition point to effect solution treatment such that the phase of the texture of said race material is converted to the &bgr; phase; (c) rapidly cooling said race material so that the texture of said race material normally stays in a &bgr; single phase; (d) subjecting said race material to plastic working so that it is shaped as desired and given work strain, which enables formation of nuclei of the &agr; phase which is harder than the &bgr; phase and the &agr; phase to be finely deposited in the &bgr; phase; (e) subjecting said race material to aging at a predetermined temperature lower than the &bgr; phase transition point, whereby nuclei of the &agr; phase are formed and grown and the &agr; phase is finely deposited in the &bgr; phase; and then (f) machining said race material to form a race.