Abstract: An aluminum-tin (Al-Sn) base bearing alloy and a bearing material which is made by applying the Al-Sn base bearing alloy to a backing steel sheet by pressure welding. The Al-Sn base bearing alloy of the invention is characterized in that the coarsening of tin particles and the lowering of the hardness under high temperature conditions are quite small so that the wear resistance as well as the fatigue strength of the alloy are quite excellent. The Al-Sn base bearing alloy comprises 3.5-35 wt. % of Sn; 1.2-10.0 wt. % of Cr; and the remainder of aluminum. The Al-Sn base bearing alloy of the invention can further contain 3 wt. % or less in total of Cu and/or Mg and 9 wt. % or less in total of one or more members of Pb, Bi and In, thereby improving the bearing characteristics. The wear resistance of this bearing alloy can be expected even when the shaft to be supported is hard and the shaft surface is coarse.

Abstract: An aluminum-tin (Al-Sn) base bearing alloy and a bearing material which is made by applying the Al-Sn base bearing alloy to a backing steel sheet by pressure welding. The Al-Sn base bearing alloy of the invention is characterized in that the coarsening of tin particles and the lowering of the hardness under high temperature conditions are quite small so that the wear resistance as well as the fatigue strength of the alloy are quite excellent. The Al-Sn base bearing alloy comprises 3.0-35 wt. % of Sn; at least 0.1 wt. % of Cr; at least 1.0 wt. % of Zr, with the proviso that the total amount of Cr and Zr is not more than 10 wt. %; and the remainder of aluminum. The Al-Sn base bearing alloy of the invention can further contain 3 wt. % or less in total of Cu and/or Mg and 9 wt. % or less in total of one or more members of Pb, Bi, In, Tl and Cd, thereby improving the bearing characteristics.

Abstract: The invention relates to aluminum-tin (Al-Sn) base bearing alloys and bearing materials made by applying said alloys to a backing steel sheet by pressure welding. In an alloy according to the invention the coarsening of tin particles and the lowering of the hardness under high temperature conditions may be kept relatively moderate so that the wear resistance as well as the fatigue strength of the alloy are improved. Bearing alloys according to the invention may be used for the bearings of internal combustion engines in which spheroidal (nodular) graphite cast iron is generally used for crankshafts.

Abstract: An aluminum-tin (Al-Sn) base bearing alloy and a bearing material which is made by applying the Al-Sn base bearing alloy to a backing steel sheet by pressure welding. The Al-Sn base bearing alloy of the invention is characterized in that the coarsening of tin particles and the lowering of the hardness under high temperature conditions are quite small so that the wear resistance as well as the fatigue strength of the alloy are quite excellent. The Al-Sn base bearing alloy comprises 3.5-35 wt.% of Sn; 0.1-1.0 wt.% of Cr; 1-10 wt.% in total of one or more members selected from the group of specified additives consisting of Si, Cr, Mn, Sb, Ti, Zr, Ni and Fe; and the remainder of aluminum. The Al-Sn base bearing alloy of the invention can further contain 3 wt. % or less in total of Cu and/or Mg and 9 wt.% or less in total of one or more members of Pb, Bi and In, thereby improving the bearing characteristics.