文中阐述用新研制的672732型四列短圆柱滚子轴承和4086132型双列向心推力球轴承,代替线材轧机轧辊辊颈原来所采用的3003130型双列向心球面滚子轴承,可以大大提高轴承的额定负荷和承载能力,延长了轴承寿命,减少了由于轴承问题而造成的停车事故,提高了轧材的产量和质量。文中还介绍了轴承的安装方法和装拆工具。 This paper describes the use of newly developed type 672732 four-row short cylindrical roller bearings and 4086132 type double row radial ball bearings, instead of wire rod mill roll neck originally used 3003130 double row spherical roller bearings can be greatly improved The bearing’s rated load and load capacity extend bearing life, reduce parking accidents due to bearing problems and increase the yield and quality of rolled stock. The article also describes the bearing installation method and assembly and disassembly tools.