标准摘要
[中文适用范围]： 指定用于将中轴杯组装到自行车中轴的螺纹的螺纹轮廓以及限制和公差。 它基于使用ISO基本螺纹牙形、与相应BSC螺纹的良好互换性、使用螺纹公差等级和公差位置以及使用按ISO 1502制造的量规。 [外文原描述]： Specifies the thread profile and limits and tolerances for the screw threads used to assemble bottom bracket cups to bottom brackets on bicycles. It is based on the use of the ISO basic thread profile, satisfactory interchangeability with the corresponding B.S.C. thread, the use of screw thread tolerance grades and tolerance positions and the use of gauges made to ISO 1502.
英文名称Cycles — Screw threads used in bottom bracket assemblies