Rotary table

A rotary table comprising:

• a base body having a planar holding surface;
• a movable ring arranged on the base body to be rotatable around an axis;
• a fixed ring arranged on an inner periphery side of the movable ring and fixed to the base body;
• and
• a plurality of rolling elements arranged to be rollable on an inner circumferential surface of the movable ring and an outer circumferential surface of the fixed ring;
• the rotary table including a sensor fixed to the base body and a dog fixed to the movable ring,
• the movable ring having
• a scale extending at least at a portion of an outer peripheral side surface, and
• a groove-shaped recess formed to be recessed inward from an outer periphery of the movable ring at a position corresponding to the scale on the outer periphery,
• the dog having
• a leg portion fitted to the recess, and
• a detected portion protruding outward from the leg portion and detectable by the sensor,
• the leg portion being able to be fixed to the movable ring at any position in the recess.