This standard specifies the basic requirements for the application of barrier coatings to anti-friction bearings for the purpose of preventing lubricant loss by surface migration and spreading during storage and in service.
This specification covers antifriction self-aligning rod and roller bearings operating in the temperature range of -67° to +300°F (-55° to +149°C) and intermittent spikes to 350°F (177°C).
This method outlines the standard procedure for testing the hardness of bearing components. Bearings covered by this test method shall be any rolling element bearing used in airframe control.