PROBLEM TO BE SOLVED: To provide a device for accurately measuring perpendicularity of the side face of an inner ring to an axis line of an inner diameter of a rolling bearing without depending on the skill of an operator.;SOLUTION: A rolling bearing perpendicularity measuring device 100 is a device for measuring perpendicularity of the side face of an inner ring 11 to an axis line of an inner diameter of a rolling bearing 1. The rolling bearing perpendicularity measuring device 100 comprises: a rotary table 3 fixed in a state in which the side face of the inner ring 11 of the bearing 1 is brought into contact with a placing surface thereof; and a displacement sensor 5. The displacement sensor 5 measures displacement of the inner diameter surface of the inner ring 11 of the bearing 1 in a direction orthogonal to a rotation axis O1 of the rotary table 3 while rotating the rotary table 3. The displacement sensor 5 is configured so as to be slidable in a vertical direction by an electric actuator 8, which enables measurement while changing the height.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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