Workpiece supporting device, processing device, processing method, method for manufacturing bearing, method for manufacturing vehicle, and method for manufacturing mechanical device

A workpiece supporting device comprising:

• a base;
• a shoe having an abutting surface which abuts a circumferential surface of a workpiece along a line parallel to a first direction to position the workpiece that is rotationally driven, the first direction being along a rotation axis of the workpiece;
• and
• a compliant frame which supports the shoe with respect to the base and allows a change in a posture of the shoe in accordance with a change in tilting of the circumferential surface of the workpiece with respect to the first direction,
• wherein the compliant frame includes a blade which is disposed parallel to a plane intersecting the first direction and is disposed at a central position of the abutting surface of the shoe or a central position of the circumferential surface of the workpiece in the first direction,
• the plane includes a second direction along a radial direction of the workpiece and a third direction intersecting the first and second directions,
• the blade has a fixed end, which is fixed to the base, and an opposite end, which is connected to the shoe, and the blade extends along the second direction between the fixed end and the opposite end, and
• the blade provides rigid support in the second direction and the third direction and provides flexible support in the first direction, and the support in the first direction is flexible relative to each of the support in the second direction and the support in the third direction.