本欧洲标准规定了耐腐蚀钢中球面滑动轴承所需的特性，检验和测试方法，鉴定和验收条件，与自润滑衬套自对准，设计用于承受（负载）轻微旋转和缓慢旋转。 无论何时参考，本标准适用。 这些轴承prEN 4538-1，prEN 4538-2，prEN 4539-1和prEN 4539-2适用于执行器应用，适用于温度范围为-54°C至163°C，适用于EN 4538-003和EN 4539-003用于温度范围 - 54°C至120°C。 衬里可以是结合到外圈的内径或者在内圈和外圈之间模制成预先形成的空腔的复合材料中的织物或复合材料。 工作周期（附件E，规范性）是在民用飞机副翼面应用的基础上建立的

This European Standard specifies the required characteristics, inspection and test methods, qualification and acceptance conditions for spherical plain bearings in corrosion resisting steel, self aligning with self lubricating liner designed to withstand (under load) slight swivelling and slow rotations only. This standard applies whenever referenced. These bearings prEN 4538-1, prEN 4538-2, prEN 4539-1 and prEN 4539-2 are for actuator applications and for use in the temperature range - 54 °C to 163 °C and for EN 4538-003 and EN 4539-003 for use in the temperature range - 54 °C to 120 °C. The liner may be of a fabric or composite material bonded to the inside diameter of the outer ring or in a composite material moulded into a pre-formed cavity between the inner and outer rings. The duty cycle (Annex E, normative) has been established on the basis of a civil aircraft aileron surface application.