This standard 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 ??(?54 to +163 ??.
AS81820B-2004由SAE - SAE International 发布于 2004-12-01,并于 2004-12-30 实施。
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