本标准规定了钢中刚性单列球轴承的特性，镀铬法兰法兰外壳设计用于承受负载下的缓慢旋转和振荡。 它们适用于扭力杆的中枢和用于机身/航空航天应用的分离的支架。 本标准中定义的机身滚动轴承可在-54°C至150°C的温度范围内使用。 然而，使用以下润滑脂润滑（参见EN 3727）: 酯型非常高压油脂（代号A），工作范围从-73°C到121°C， 合成碳氢化合物类型非常高压油脂通用（代码字母B）的工作范围从-54°C到177°C。 当使用代码字母A润滑脂进行润滑时，其应用领域限制在121°C

This standard specifies the characteristics of rigid single row ball bearings in steel, with cadmium-plated flanged alignment housing designed to withstand only slow rotations and oscillations under load. They are intended for use in the hubs of torsion lever and in separated supports for airframe/aerospace applications. The airframe rolling bearings defined in this standard may be used in the temperature range from - 54 °C to 150 °C. However, being lubricated with the following greases (see EN 3727): ester type very high pressure grease (code letter A), operating range from - 73 °C to 121 °C or, synthetic hydrocarbons type very high pressure grease general purpose (code letter B) operating range from - 54 °C to 177 °C. Their field of application when lubricated with code letter A grease is limited to 121 °C.