ISO 13939:2012 Foil bearings - Guidelines for testing of the performance of foil journal bearings - Testing of load capacity, friction coefficient and lifetime
2019ISO 13939:2019 Foil bearings — Performance testing of foil journal bearings — Testing of static load capacity, friction coefficient and lifetime
2012ISO 13939:2012 Foil bearings - Guidelines for testing of the performance of foil journal bearings - Testing of load capacity, friction coefficient and lifetime