Patent ID: 8752421
Filing Date: 2014-06-17
Classification: G01M,G01N

Abstract:
1. A flaw detection testing device that carries out a flaw detection test on an outer peripheral surface of a clinched portion used to fix an inner ring member of a hub unit to a hub spindle, comprising: a flaw detection sensor; a clearance setting member that contacts the outer peripheral surface of the clinched portion to set a clearance between the flaw detection sensor and the outer peripheral surface of the clinched portion at a predetermined value; and a fixing device that fixes a position of the flaw detection sensor with the clearance between the flaw detection sensor and the outer peripheral surface of the clinched portion kept at the predetermined value; and an actuating device that moves the clearance setting member in such a direction that the clearance setting member is separated from the outer peripheral surface of the clinched portion with the position of the flaw detection sensor fixed by the fixing device.