Aluminum alloy bearing

Abstract

An aluminum alloy bearing includes dispersed Si particles amounting to 1.0 to 10.0 weight % of Si. In such aluminum alloy bearing, relative diffraction intensity of (111) plane of the Si particles is equal to or greater than 0.6.

1 . An aluminum alloy bearing comprising:
 dispersed Si particles amounting to 1.0 to 10.0 weight % of Si, wherein a relative diffraction intensity of (111) plane of the Si particles is equal to or greater than 0.6.   
     
     
         2 . The aluminum alloy bearing according to  claim 1 , further comprising a bearing surface, and a bearing interior portion located at a portion deeper in a thickness direction than the bearing surface, wherein ratio Dr of a diffraction intensity of (111) plane of the Si particles in the bearing surface to a diffraction intensity of (111) plane of the Si particles in the bearing interior portion is 0.8≦Dr≦1.2. 
     
     
         3 . The aluminum alloy bearing according to  claim 1  including one or more of:
 (a) one or more elements selected from the group of Cu, Zn, and Mg amounting to a total of 0.1 to 7.0 weight %, 
 (b) one or more of Mn, V, Mo, Cr, Co, Fe, Ni, and W amounting to a total of 0.01 to 3.0 weight %, and 
 (c) one or more elements selected from the group of B, Ti, and Zr amounting to a total of 0.01 to 2.0 weight %. 
 
     
     
         4 . The aluminum alloy bearing according to  claim 2  including one or more of:
 (a) one or more elements selected from the group of Cu, Zn, and Mg amounting to a total of 0.1 to 7.0 weight %, 
 (b) one or more of Mn, V, Mo, Cr, Co, Fe, Ni, and W amounting to a total of 0.01 to 3.0 weight %, and 
 (c) one or more elements selected from the group of B, Ti, and Zr amounting to a total of 0.01 to 2.0 weight %.