Wrist cover, robot, and wrist cover set

A wrist cover that covers a wrist of a robot, the wrist including a first wrist element, a second wrist element, and a third wrist element coupled in series so as to be rotatable with respect to one another, the wrist cover comprising:

• a first rotating seal member that is fixed to the second wrist element, thereby sealing a ring-shaped gap between the second wrist element and the third wrist element while allowing relative rotation between the second wrist element and the third wrist element;
• and
• a flexible bag-shaped cover body that has a first opening arranged in a state in which the first wrist element is passed therethrough, and a second opening arranged in a state in which the third wrist element is passed therethrough,
• wherein the cover body and the first rotating seal member are attached with a space between a peripheral edge of the second opening and the first rotating seal member being sealed over an entire periphery thereof.