近年来随着各类轴承使用条件不断变化,对其要求也不断提高,特别是汽车产业和机械行业,对轴承具有高效、轻质、低耗特性,并能用于高温、高速、高负荷、低粘度润滑要求越来越高,以往的高碳轴承在高温条件下常温时所具有的强度和硬度就有所下降,另外为避免高温条件下轴承尺寸变 In recent years, with the continuous use of various types of bearings changing conditions, its requirements are also rising, especially the automotive industry and machinery industry, the bearing has high efficiency, light weight, low consumption characteristics, and can be used for high temperature, high speed, high load, Low-viscosity lubrication requirements are getting higher and higher, the previous high-carbon bearings at room temperature at room temperature with the strength and hardness have declined, the other to avoid high temperature bearing size under variable conditions