Patent ID: 11906049
Assignee: NOK CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. A sealing device that seals a gap between: an annular outer periphery side member; and an annular inner periphery side member at least partially surrounded by the outer periphery side member, the outer periphery side member and the inner periphery side member being relatively rotatable to each other with respect to an axis, the sealing device comprising:
a sealing device main body to be attached to the outer periphery side member; and
a slinger to be attached to the inner periphery side member,
wherein
the sealing device main body includes: an annular reinforcement ring centered on the axis; and an annular elastic body part that is made of an elastic body attached to the reinforcement ring and is centered on the axis,
a through hole that passes through a portion between an internal space side surface and an atmosphere side surface of the reinforcement ring is formed in the reinforcement ring,
a positioning part for fixing a position of the reinforcement ring at a time of vulcanization is formed on an internal space side surface of the elastic body part, and
the through hole and the positioning part are formed at positions separated in a radial direction,
wherein a thickness of the elastic body part formed on an atmosphere side of the reinforcement ring is thicker than a thickness of the elastic body part formed on an internal space side of the reinforcement ring, and
wherein the positioning part includes an inner periphery side positioning part that is formed on the inner periphery side with respect to the through hole and an outer periphery side positioning part that is formed on the outer periphery side with respect to the through hole.