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钢对磨磨损量较大.最后选定ZQSn10?1为特殊轴承保持架材料.并通过实践证明这种匹配的特殊轴承摩擦副质量可靠,完全可以替代此类进口轴承.“,”This paper introduces the structure features of special bearings and tribological performances of its friction pairs. 5 kinds of retainer materials are tested. Tests show that the alloy ZQSn10-1 is the most suitable material for retainer of special bearings.