这是一台火车救援起重机上的重载回转支承，按照客户的要求，我们开始对这台回转支承进行拆卸检查以及保养维护。
保养内容一般包括，滚道磨损检查，滚柱更换，隔离块更换，螺栓螺帽更换，润滑脂更换，整体探伤查验，整体清洗，外观精车除锈。
Disassembly and maintenance of heavy-duty slewing bearing
This is a heavy-duty slewing bearing on a train rescue crane. According to the customer’s request, we began to dismantle, inspect and maintain this slewing bearing.
The maintenance content generally includes, raceway wear inspection, roller replacement, spacer block replacement, bolt and nut replacement, grease replacement, overall flaw detection and inspection, overall cleaning, and appearance finishing.
