A method of manufacturing washers, the method comprising: a preparing step of preparing a material having a panel shape; a first cutting-out step of cutting out a first washer having a substantially arc shape from the material; and a second cutting-out step of cutting out a second washer including an inner peripheral face having an arc shape from a portion of the material in contact with a portion from which the first washer is cut out, wherein in the second cutting-out step, a first inner peripheral cut-away portion is formed at one of opposite end portions of the inner peripheral face of the second washer and a second inner peripheral cut-away portion is formed at the other of the opposite end portions of the inner peripheral face of the second washer, and the first washer is cut out from a first area of the material and the second washer is cut out from a second area of the material, characterized in that the first inner peripheral cut-away portion is formed such that the second inner peripheral cut-away portion and the first inner peripheral cut-away portion are asymmetrical, and the first area is set such that a symmetry axis (Ls) of the first thrust washer in the first area inclines at a predetermined angle (x) with respect to a longitudinal direction of the material, and the second area is set at a position displaced downward by a predetermined pitch in the longitudinal direction of the material from the first area so that the symmetry axis (Ls) of the second thrust washer in the second area also inclines at the predetermined angle (x) with respect to the longitudinal direction of the material, wherein the pitch is set such that the first area and the second area are in contact with each other. a preparing step of preparing a material having a panel shape; a first cutting-out step of cutting out a first washer having a substantially arc shape from the material; and a second cutting-out step of cutting out a second washer including an inner peripheral face having an arc shape from a portion of the material in contact with a portion from which the first washer is cut out, wherein in the second cutting-out step, a first inner peripheral cut-away portion is formed at one of opposite end portions of the inner peripheral face of the second washer and a second inner peripheral cut-away portion is formed at the other of the opposite end portions of the inner peripheral face of the second washer, and the first washer is cut out from a first area of the material and the second washer is cut out from a second area of the material, characterized in that the first inner peripheral cut-away portion is formed such that the second inner peripheral cut-away portion and the first inner peripheral cut-away portion are asymmetrical, and the first area is set such that a symmetry axis (Ls) of the first thrust washer in the first area inclines at a predetermined angle (x) with respect to a longitudinal direction of the material, and the second area is set at a position displaced downward by a predetermined pitch in the longitudinal direction of the material from the first area so that the symmetry axis (Ls) of the second thrust washer in the second area also inclines at the predetermined angle (x) with respect to the longitudinal direction of the material, wherein the pitch is set such that the first area and the second area are in contact with each other.