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1、适用范围 本标准规定了用于往复运动机械上的薄壁翻边轴瓦的主要尺寸和公差。虽然并不要求所有翻过轴瓦的主要尺寸都采用本标准规定的尺寸,但采用标准尺寸可以降低加工成本。 本标准规定了适用于轴承座孔内径为40～250mm的翻边薄壁轴瓦的主要尺寸和公差。轴承座孔尺寸再大或再小的翻边轴瓦很少使用,所以这里不作规定。 本标准规定了薄壁翻边轴瓦结构要素尺寸和公差。但在结构设计中,是否采用这些结构要素由用户根据自己的使用知识来决定。 翻边轴瓦的使用场合一般与1SO3548规定的不带止推边轴瓦相似。 另外,用不带止推边的轴瓦加上两个半圆止推片就可以代替翻边轴瓦。其技术要求根据ISO3548和ISO6526由供需双方协商。 注:除另有说明,本标准中所有尺寸和公差的单位都是mm.
1, the scope This standard specifies the main dimensions and tolerances for thin-flanged bushings on reciprocating machinery. Although it is not required that all major dimensions of the overrun bush be of the size specified in this standard, the use of a standard size will reduce machining costs. This standard specifies the main dimensions and tolerances for flanged thin-walled bushings with bearing bore diameters of 40 to 250 mm. Bearing hole size big or small and then smaller flanged bushings rarely used, so here is not required. This standard specifies the dimensions and tolerances of structural elements of thin flanged bush. However, structural design, whether or not to adopt these structural elements by the user according to their own knowledge of use to decide. The use of flanged bushings are generally similar to those provided by 1SO3548 without thrust flanged bushings. In addition, with non-thrust edge bearing plus two semi-circular thrust plate can be replaced flanged bearing. The technical requirements according to ISO3548 and ISO6526 by both supply and demand negotiations. Note: Unless otherwise indicated, all dimensions and tolerances in this standard are in mm.