Misalignment determining device

A misalignment determining device comprising:

• a tubular case having a through hole that extends therethrough in an axial direction;
• a test indicator attached to an outer face of the case and capable of determining a minute amount of change of distance by a stylus;
• a tubular holder body rotatably attached to the case coaxially with the axis of the case and through the through hole;
• a supporting body attached to a base end side of the holder body for supporting the holder body;
• a slidable body provided on an inner side of the holder body in a radial direction and movable relative to the holder body along the axial direction;
• a pivotal body attached to a leading end side of the slidable body and having a pivotable leading end portion whose pivotal amount is transmitted to the slidable body;
• the slidable body including an axial extension portion formed along the axial direction and a radial extension portion formed along the radial direction;
• and
• the stylus of the test indicator and the radial extension portion of the slidable body coming into contact with each other, so that a pivotal amount of the pivotable body is transmitted via the axial extension portion to the radial extension portion of the slidable body to be determinable by the stylus of the test indicator in contact with the radial extension portion.