本标准适用于设计、应用、安装、， 检查要求和维护 回转支承轴承（SRB）使用的滚珠 需要动态容量寿命额定值。这些也可能 被称为回转支承。这包括四点 接触单列和双列滚珠轴承。这样的 轴承用于但不限于设备 如液压铲、挖掘机、高空作业平台 （载人升降机）、起重机、风力发电机、建筑物维护 单元（BMU）和其他设备 结构的一部分必须相对于轴旋转 另一个以摆动或索引的方式。本标准的目的是定义标准 评估变量和建立实践的方法 在振荡条件下，在球形SRB中获得令人满意的性能 或索引应用程序。这将允许有效的沟通 以及用户、安装人员和， 以及SRB制造商，以便各方理解 彼此的要求有着共同点 参考某些参数被标准化，以减少 SRB制造商之间可能存在混淆 还有用户。验收标准和指南如下: 提供SRB设计、材料、检查要求， 和应用。

This Standard applies to the design, application, installation, inspection requirements, and maintenance of slewing ring bearings (SRBs) using balls that do not require dynamic capacity-life ratings. These also may be called slewing rings. This is inclusive of four-point contact single-row and double-row ball bearings. Such bearings are used in, but not limited to, equipment such as hydraulic shovels, excavators, aerial platforms (manlifts), cranes, wind-power generators, building maintenance units (BMUs), and other equipment where one part of the structure must rotate with respect to another in an oscillating or indexing manner.The purpose of this Standard is to define standard methods to evaluate variables and establish practices for satisfactory performance in ball SRBs in oscillating or indexing applications. This will allow effective communication and exchange of data among the user, installer, and SRB manufacturer such that all parties understand each other's requirements and have a common point of reference.Certain parameters are standardized to reduce the potential for confusion between the SRB manufacturer and the user. Acceptance criteria and guidelines are provided for SRB design, material, inspection requirements, and application.