Vibration Testing - Junker Test Din 65151

This is a common test apparatus for applying a load transverse to the bolt axis to loosen the fastener and is compliant with German Institute for Standardisation (DIN) 65151. It is called a Junker test apparatus for the developer, Gerhard Junker. The current ISO (International Organization for Standardization) standard is 16130.

Testing Equipment

Testing machine

Schematic diagram

Test results

It was confirmed that the Hardlock Nut prevented looseness in a Junker testing machine.

Video of the test (Japanese)