Patent ID: 6309759
Filing Date: 2001-10-30
Classification: C22C,C25D,F16C,Y10S,Y10T

Abstract:
A sliding bearing, which comprises a lining and a bismuth or bismuth-alloy overlay formed on the lining, wherein the relative ratio of the X-ray diffraction intensity I.sub.[hkl] of the bismuth or bismuth-alloy overlay defined below satisfies the following conditions (a) and (b):(a) the relative ratio of the X-ray diffraction intensity I.sub.[hkl] of planes other than the {012} planes is from 0.2 to 5 times as high as the ratio of the X-ray diffraction intensity I.sub.[012], namely, 0.2I.sub.[012].ltoreq. I.sub.[hkl].ltoreq.5I.sub.[012](b) the relative ratio of the X-ray diffraction intensity I.sub.[hkl] of three or more planes other than {012} planes ranges from 0.5 to 2 times as high as the ratio of the X-ray diffraction intensity I.sub.[012], namely, 0.5I.sub.[012].ltoreq.I.sub.[hkl].ltoreq.2I.sub.[012], where;the {hkl} planes of bismuth crystals of standard powder samples having random orientation indicates the X-ray diffration intensity Rp (hkl); the {hkl} planes of bismuth crystals of said bismuth or bismuth-alloy overlay layer indicates the X-ray diffraction intensity R.sub.O/L (hkl); the ratio of both intensities is expressed by K (hkl)=R.sub.O/L (hkl)/Rp (hkl); the ratio of K (012) and the K (hkl) is expressed by I.sub.[hkl] =K(hkl)/K(012).