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徐州回转支承厂生产的2000mm以内的工程机械用的回转支承,系按部标准JB2300-78制造的。主要用于汽车起重机、塔式起重机、挖掘机、打桩机、工程作业车、雷达扫掠设备等承受倾复力矩、垂直轴向力、水平径向力作用的机械上。一、结构型式1.单排交叉滚柱式,其中又分外齿式、内齿式、不带齿式。2.单排四点接触球式,其中又分外齿式、内齿式、不带齿式(目前尚未投产)。
Slewing bearing for construction machinery within 2000mm produced by Xuzhou Slewing Bearing Factory is made according to the department standard JB2300-78. Mainly used for truck cranes, tower cranes, excavators, pile drivers, engineering vehicles, radar sweeping equipment to withstand the overturning moment, the vertical axial force, horizontal radial force on the role of machinery. First, the structure type 1. Single-row crossed roller type, which is divided into external teeth, internal teeth, without teeth. 2. Single-row four-point contact ball, which is divided outer gear, internal gear, without gear (currently not yet put into production).