Patent ID: 8828178

Claim:
A production method for a sealing device having a slinger fixedly fitted into a rotary side member, a core member fixedly fitted into a stationary side member, and an elastic sealing member fixed to the core member and having a seal lip which elastically and slidably contacts the slinger, said sealing device sealing a space between said rotary side member and said stationary side member, in which said slinger has a slidably contacting surface for said seal lip, a fitting cylindrical portion to be fitted into said rotary side member and a brim portion extending in the radial direction of said slinger from an end of an outer side relative to a part of said fitting cylindrical portion to be sealed, and a rotary side fixing member is integrally attached to an outer surface of said brim portion of said slinger relative to the sealed portion wherein the production method comprises the steps of: in the process of attaching said rotary side fixing member to said slinger forming an adhesive layer on the whole surface of said slinger by applying an adhesive agent; then integrally attaching said rotary side fixing member to the outer surface of said brim portion of said slinger relative to the sealed portion; and thereafter executing a removal of the adhesive layer which has been formed corresponding to said slidably contacting surface of said slinger which said seal lip slidably contacts and a surface roughening treatment on said slidably contacting surface to reduce the friction resistance of said seal lip by one process.