Patent ID: 6926923

Claim:
A method of forming a coat on an inner surface of a bearing, including the steps of: rotating the bearing in its circumferential direction; and applying a coating material to form the coat on the inner surface of said rotating bearing by injecting the coating material from a nozzle by airless spray painting wherein, the method is performed by an apparatus that includes: a rotating means for rotating the bearing in its circumferential direction; an applying means consisting of a nozzle for applying a coating material for forming the coat on the inner surface of said bearing, the applying means injecting the coating material by airless spray painting; and a coating material supplying means for supplying the coating material to said nozzle, the coating material supplying means applying pressure to the coating material in a sealed state and circulating the coating material, said rotating means including a jig for holding said bearing and a rotor to which the jig is attached, the rotor rotating together with the jig, and said jig includes a first jig of a semi-cylinder shape having a bearing receiving surface on an inner surface side thereof for receiving said bearing, and a second up having a bearing receiving surface on an inner surface side thereof, the bearing receiving surface being opposite to said bearing receiving surface of the first up, the second up having a semi-cylinder shape of which outer diameter is larger than that of said first up, and being attached to said rotor while holding said bearing between the first and second jigs.