scope:

This standard specifies the characterics of single row self-aligning roller bearings in steel, cadmium plated, designed to withstand only slow rotations, oscillator and/or swivelling under load. They are intended for use in bell crank lever ends or at the end of rigid flight control rods for transmission purposes, before or after servo operation. The airframe rolling bearings defined in this standard are used from -54°C to +150°C. However, being lubricated with the following greases: - very high pressure grease, ester type (code A), operational range -73°C to +121°C or very high pressure grease, synthetic hydrocarbons, general purposes (code B), operational range -54°C to +177°C (see EN 3280), their field of application when lubricated with Code A grease is limited to +121°C.