Sealing device
AssigneeNok Corporation
InventorTakehiro Nakagawa
Life of this patent
Estimating the term…
Abstract
To prevent muddy water intrusion into a sliding section (S1) of an oil seal lip (13), a sealing device (1) has an oil seal (10) mounted at an opening end (2a) of a housing (2) and a slinger (20) mounted axially outside the oil seal (10) on a rotating body (5), the oil seal (10) is formed from a rubber-like elastic material integrally with a metal reinforcement ring (11) and has the oil seal lip (13) slidably contacting with the outer peripheral surface of the rotating body (5) and a side lip (15) slidably contacting with the slinger (20), the reinforcement ring (11) has a sliding tube section (11b) radially outside a sliding section (S2) of the side lip (15), and a external seal lip (23) provided on a radially outer section (22a) of the slinger (20) slidably contacts with the outer peripheral surface of the sliding tube section (11b).
Claims2
A sealing device comprising:
- an oil seal attached to an inner peripheral surface of an opening end of a non-rotating housing;
- and
- a slinger attached to a rotating body inserted to said housing so as to be positioned at an axially outer side of said oil seal;
- said oil seal being integrally formed by a rubber elastic material on a reinforcement ring constructed by a metal press molded product,
- wherein an oil seal lip slidably brought into close contact with an outer peripheral surface of said rotating body and a side lip slidably brought into close contact with said slinger are formed, a sliding tube section exposed from said rubber elastic material and positioned at a radially outer side of a sliding section of said side lip is formed on said reinforcement ring, and an external seal lip provided on a radially outer section of said slinger is slidably brought into close contact with an outer peripheral surface of the sliding tube section, and
- the external seal lip is formed in such a share that a leading end is bent so as to be directed to an inner peripheral side.
A sealing device comprising:
- an oil seal attached to an inner peripheral surface of an opening end of a non-rotating housing;
- and
- a slinger attached to a rotating body inserted to said housing so as to be positioned at an axially outer side of said oil seal;
- said oil seal being integrally formed by a rubber elastic material on a reinforcement ring constructed by a metal press molded product,
- wherein an oil seal lip slidably brought into close contact with an outer peripheral surface of said rotating body and a side lip having a sliding section slidably brought into close contact with said slinger are formed,
- a sliding tube section is provided extending from said reinforcement ring and positioned at a radially outer side of the sliding section of said side lip,
- an external seal lip provided on a radially outer section of said slinger is slidably brought into close contact with an outer peripheral surface of the sliding tube section, and
- the external seal lip is formed in such a shape that a leading end is bent so as to be directed to an inner peripheral side.
Dependencies are inferred from the claim text.