Air bearing

An air bearing, comprising:

• a main body part that includes a bearing part opposed to a guide face;
• a first flow path part and a second flow path part to which compressed air supplied from outside flows after being branched by a branch part, the first flow path part being provided in the main body part;
• an air supply hole for supplying compressed air to the guide face to form an air film between the bearing surface and the guide face, the air supply hole being provided in the first flow path part;
• and
• a negative pressure generating part for generating a negative pressure for sucking air between the guide face and the main body part by increasing flow velocity of the compressed air, the negative pressure generating part being provided in the second flow path part.