US3396975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing seal case construction
Assignee: Timken Co
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Filing: 1966-03-18
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Granted: 1968-08-13
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Expires: 1986-03-18
Abstract
Abstract 1,167,201. Bearings; seals. TIMKEN ROLLER BEARING CO. 16 Jan., 1967 [18 March, 1966], No. 2332/67. Headings F2A and F2B. A rolling bearing assembly comprises an outer race 17 with an axially extending lip 19, a plastics seal case 27 having an axial portion 28, said portion engaging the inner annular surface of the lip and carrying a reinforcing member 33 of substantially equal coefficient of thermal expansion to lip 19. In Fig. 3 case 27 is moulded partly around metal reinforcing ring 33, plastics material filling holes 35 in flange 34 to retain the ring. The case 27 is inserted axially into the lip, the seal case first constricting and then expanding when bead 36 reaches the recess 20. In Fig. 4 (not shown), a plastics projection enters a recess (20) and contains a wire (43). In Fig. 5 (not shown), a cylindrical portion (286) contains a cylindrical ring and engages an unrecessed lip.
Inventors
- 👤 Otto Dennis Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:50
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7803; F16C33/7813; B; B61; B61F; B61F15/00; B61F15/20; B61F15/22; F16C19/00; F16C19/22; F16C19/34; F16C19/38; F16C19/383; F16C19/385; F16C19/386; F16C2326/00; F16C2326/10; F16C2361/00; F16C2361/31; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/936; Y10S277/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
IN AN AXLE JOURNAL ANIT-FRICTION BEARING ASSEMBLY HAVING A BEARING CUP WITH AN AXIALLY EXTENDING LIP FORMED WITH AN INNER ANNULAR SURFACE SPACED FROM THE AXLE JOURNAL AND AN ANNULAR RECESS IN SAID ANNULAR SURFACE; THE IMPROVEMENT WHICH COMPRISES A SEAL DEVICE BETWEEN THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP AND THE AXLE JOURNAL, SAID SEAL DEVICE INCLUDING A SEAL ASSEMBLY, A SEAL CASE OF MOLDABLE PLASTIC MATERIAL SECURED TO SAID SEAL ASSEMBLY, SAID SEAL CASE LOCATING SAID SEAL ASSEMBLY IN ENGAGEMENT WITH THE AXLE JOURNAL AND HAVING AN ANNULAR BED ON AN AXIALLY EXTENDING PORTION ENGAGED WITH THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP AND SAID ANNULAR BEAD BEING SEATED IN THE ANNULAR RECESS FOR RETENTION OF SAID SEAL CASE, SAID AXIALLY EXTENDING PORTION OF SAID SEAL CASE PRESENTING ITS PLASTIC MATERIAL TO THE ASPERITIES OF THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP TO EFFECT EMBEDMENT THEREOF BY COLD FLOW, AND A REINFORCING MEMBER CARRIED BY SAID AXIALLY EXTENDING PORTION AND RECEIVED WITHIN THE AXIAL DIMENSION OF THE INNER ANNULAR SURFACE ON THE BEARING CUP LIP, SAID REINFORCING MEMBER BEING CARRIED IN SAID ANNULAR BEAD AND HAVING A COEFFICIENT OF THERMAL EXPANSION AND CONTRACTION SUBSTANTIALLY THE SAME AS THE BEARING CUP LIP.
Claim 2
Dependent Claim
209 words
IN AN AXLE JOURNAL ANIT-FRICTION BEARING ASSEMBLY HAVING A BEARING CUP WITH AN AXIALLY EXTENDING LIP FORMED WITH AN INNER ANNULAR SURFACE SPACED FROM THE AXLE JOURNAL AND AN ANNULAR RECESS IN SAID ANNULAR SURFACE; THE IMPROVEMENT WHICH COMPRISES A SEAL DEVICE BETWEEN THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP AND THE AXLE JOURNAL, SAID SEAL DEVICE INCLUDING A SEAL ASSEMBLY, A SEAL CASE OF MOLDABLE PLASTIC MATERIAL SECURED TO SAID SEAL ASSEMBLY, SAID SEAL CASE LOCATING SAID SEAL ASSEMBLY IN ENGAGEMENT WITH THE AXLE JOURNAL AND HAVING AN ANNULAR BED ON AN AXIALLY EXTENDING PORTION ENGAGED WITH THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP AND SAID ANNULAR BEAD BEING SEATED IN THE ANNULAR RECESS FOR RETENTION OF SAID SEAL CASE, SAID AXIALLY EXTENDING PORTION OF SAID SEAL CASE PRESENTING ITS PLASTIC MATERIAL TO THE ASPERITIES OF THE INNER ANNULAR SURFACE OF THE BEARING CUP LIP TO EFFECT EMBEDMENT THEREOF BY COLD FLOW, AND A REINFORCING MEMBER CARRIED BY SAID AXIALLY EXTENDING PORTION AND RECEIVED WITHIN THE AXIAL DIMENSION OF THE INNER ANNULAR SURFACE ON THE BEARING CUP LIP, SAID REINFORCING MEMBER BEING CARRIED IN SAID ANNULAR BEAD AND HAVING A COEFFICIENT OF THERMAL EXPANSION AND CONTRACTION SUBSTANTIALLY THE SAME AS THE BEARING CUP LIP.
References Cited (Backward Citations)
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Cited
US2893770A
Cited
US2834616A
Cited
US2879114A
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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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |