范围:本文件规定了发动机凸轮轴驱动等汽车应用中使用的同步环带及其相关皮带轮的特性。 这些特点包括: --皮带间距； --皮带标称齿形尺寸； --皮带宽度和宽度公差； --皮带节距长度和节距长度公差； --滑轮槽尺寸和公差； --滑轮公差和质量规范。 还包括测量皮带节距长度和横向跳动的试验方法。交叉引用:ISO 254购买本文件时提供的所有现行修订均包含在购买本文件中。

Scope: This document specifies the characteristics of synchronous endless belts and their related pulleys for use in automotive applications such as engine camshaft drives. The characteristics include: -- belt pitch spacing; -- belt nominal tooth dimensions; -- belt width and width tolerance; --belt pitch length and pitch length tolerance; -- pulley groove dimensions and tolerances; -- pulley tolerances and quality specifications. Test methods for measuring belt pitch length and lateral runout are also included.Cross References:ISO 254All current amendments available at time of purchase are included with the purchase of this document.