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About This Item
Full Description
This 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 EN 4538-1, EN 4538-2, EN 4539-1 and EN 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
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ASD-STAN PREN 4540
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Aerospace series Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner Elevated load under low oscillations Technical specification- Most Recent
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ASD-STAN PREN 4540
Aerospace Series Bearings, Spherical Plain, in Corrosion Resisting Steel with Self-Lubricating Liner Elevated Load under Low Oscillations Technical Specification- Historical Version