The invention discloses application of a high-
toughness low-expansion
zinc-based wear-resisting
alloy for production of a bearing cage. The
alloy comprises, by weight, 55-65% of
zinc, 20-30% of aluminum, 10-15% of intermediate
alloy aluminum and 1-2% of aluminum
cobalt. A method for producing the bearing cage comprises that materials are smelted, cast and molded by a mold and subjected to finish
machining, and then the high-
toughness low-expansion
zinc-based wear-resisting alloy bearing cage is produced. According to the application of the high-
toughness low-expansion zinc-based wear-resisting alloy for the production of the bearing cage, production materials and production processes of traditional bearing cages are changed, the
specific gravity of the bearing cage is reduced to 4.8, the wearing resistance and the strength of the bearing cage are better than those of lead
bronze, the starting resistance is low, the bearing cage is not easy to wear, scraps are not easy to fall, the bearing cage are good in material
oil immersion performance, and a layer of protective
oil film can be formed on every working surface. According to the application, the alloy is low in starting resistance, free from
scrap falling during operation, reliable in operation, good in stability and high in working precision, so that the alloy is the preferred application material for current
processing of the bearing cage.