ISO3548:1999《滑动轴承 带或不带法兰的薄壁轴瓦公差、设计特点和检验方法》取代并合并ISO4383:1978及ISO6864:1984两个标准,在结构和技术内容方面均作了较大修改。主要有:1 宽度公差 止推(带法兰)轴瓦的整体式宽度公差趋严,并增加了组合式法兰轴瓦的宽度公差,见下表。2 油槽公差 油槽宽度 ±0.25; ISO3548: 1999 “Plain bearings with or without flanged thin-walled bush tolerance, design features and test methods” to replace and merge the ISO4383: 1978 and ISO6864: 1984 two standards, both in terms of structure and technical content have made major changes . The main ones are: 1 Width tolerance Thrust (with flange) The integral width tolerance of the bearing bush is tightened and the width tolerance of the combined flange bearing bush is increased, as shown in the following table. 2 groove tolerance groove width ± 0.25;