Patent US3770993A successfully refreshed from Google Patents.
US3770993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing system for a roller bearing or the like
Assignee: Gelenkwellenbau GmbH
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Filing: 1972-05-03
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Granted: 1973-11-06
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Expires: 1992-05-03
Abstract
Abstract Sealing system for an antifriction bearing having an inner and an outer bearing race and a ring of rolling members disposed therebetween, includes lip seals respectively disposed adjacent to and on opposite sides of the ring of rolling members, respective labyrinth seals spaced outwardly from the lip seals and sealing the bearing at opposite sides thereof from the outside, a supply of lubricant received in the space between the respective lip seals and labyrinth seals, and respective disc members located adjacent the inner bearing race of the bearing and extending radially outwardly into the spaces wherein the lubricant is received.
Inventors
- 👤 J Schultenkamper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:28
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/80; F16J; F16J15/00; F16J15/002; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2326/00; F16C2326/01; F16C2326/06; F16C27/00; F16C27/06; F16C27/066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
In an antifriction bearing having an inner and an outer bearing race and a ring of rolling members disposed therebetween, a sealing system comprising lip seals respectively disposed adjacent to and on opposite sides of the ring of rolling members, respective labyrinth seals spaced outwardly from said lip seals and sealing the bearing at opposite sides thereof from the outside, a supply of lubricant received in the space between the respective lip seals and labyrinth seals, and respective disc members located adjacent the inner bearing race of the bearing and extending radially outwardly into the spaces wherein said lubricant is received.
Claim 2
Dependent Claim
101 words
In an antifriction bearing having an inner and an outer bearing race and a ring of rolling members disposed therebetween, a sealing system comprising lip seals respectively disposed adjacent to and on opposite sides of the ring of rolling members, respective labyrinth seals spaced outwardly from said lip seals and sealing the bearing at opposite sides thereof from the outside, a supply of lubricant received in the space between the respective lip seals and labyrinth seals, and respective disc members located adjacent the inner bearing race of the bearing and extending radially outwardly into the spaces wherein said lubricant is received.
Claim 3
Dependent Claim
11 words
Sealing system according to claim 1 wherein said lubricant is grease.
Claim 4
Dependent Claim
110 words
Sealing system according to claim 2 wherein a boss peripherally surrounds the antifriction bearing, and said labyrinth seal comprises an axially inner member in the form of a ring of plastic material received in the bore of said boss and fixed to said boss, said ring of plastic material having an axially outer end face formed with a circular recess, and an axially outer member rotatable with a shaft on which the antifriction bearing is mountable, the axially outer member having a deformation at a radially outer end portion thereof, said deformation extending into said recess and having a profile extending substantially parallel to the defining surfaces of said recess.
Claim 5
Dependent Claim
33 words
Sealing system according to claim 3 wherein said recess and said radially outer end portion have a V-shaped cross section, the outer leg of the V being directed both radially and axially outwardly.
Claim 6
Dependent Claim
38 words
Sealing system according to claim 4 wherein the radially outer end of said axially inner member of said labyrinth seal has an axially outwardly extending collar radially and axially covering said axially outer member of said labyrinth seal.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |