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SAE AS 81820D-2014 (SAE AS81820D-2014)
Bearings, Plain, Self-Aligning, Self-Lubricating, Low Speed Oscillation
This SAE Aerospace Standard (AS) covers plain spherical bearings which are self-aligning and self-lubricating by utilizing polytetrafluoroethylene (PTFE) in a fabric composite or molded material that is bonded to the inner diameter surface of the race and when specified, to the bore diameter surface of the ball. These bearings are for use in the temperature range -65 to +325 °F (-54 to +163 °C).
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Society of Automotive Engineers [sae]
Society of Automotive Engineers [sae]