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铁路机车车辆上的轴承,如客车、货车车轴轴承,牵引电机轴承等。若有任何隐患,对于人民的生命财产都会构成严重的威胁。我厂生产尺寸较大的197726无轴箱货车轴承。它的内外套圈选用G20CrNi2MoA优质渗碳合金钢,滚柱选用GCr15轴承钢,保持器选用08AL冷轧钢板。整个轴承的生产从投料一直到组装成品,中间经过的冷、热加工工序大多由国外引进的设备完成,具有流水作业、加工量小、效率高和批量大等特点。钢材的冶金缺陷,例如表面发裂,非金属夹杂物等的存在,往往给轴承生产各工
Railway rolling stock bearings, such as passenger cars, truck axle bearings, traction motor bearings. Any hidden danger poses a serious threat to people’s lives and property. I produced a large 197771 axle box truck bearings. Its inner and outer rings use G20CrNi2MoA high-quality carburized alloy steel, roller selection GCr15 bearing steel, retainer selection 08AL cold-rolled steel. The entire bearing production from the feed until the assembly of finished products, through the middle of the cold and hot processing processes are mostly imported equipment to complete, with the flow of work, the processing volume is small, high efficiency and large batch size and so on. Metallurgical defects in steel, such as surface cracking, the presence of non-metallic inclusions, etc., often to the bearing production of various workers