SNV - SN EN 4540
Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Technical specification
| Organization: | SNV |
| Publication Date: | 1 April 2012 |
| Status: | active |
| Page Count: | 40 |
| ICS Code (Components for aerospace construction): | 49.035 |
| ICS Code (Coatings and related processes used in aerospace industry): | 49.040 |
scope:
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.
Document History
