A combined cap and actuator device for an aerosol container has a body which is substantially cylindrically-shaped having a receiving portion, an actuating portion, and a waist portion. The wheel assembly also includes a bearing arrangement with an asymmetric configuration. In forming the pattern, after forming a film to be processed on a substrate, a first mask is formed on the film to be processed, by lithography, using the first photomask, and a second mask is formed on the film to be processed, by lithography, using the second photomask.