US4040684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling bearing
Assignee: SKF Industries Inc
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Filing: 1976-03-16
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Granted: 1977-08-09
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Expires: 1996-03-16
Abstract
Abstract A rolling bearing comprising two rotating parts formed by an inner and outer race fitted with mounting flanges, a plurality of rows of rolling elements, separated by cages, positioned between the races, and a plane seal for sealing the races to prevent the ingress of foreign substances while retaining any lubricant that is present in the space between the races and the seal, the plane seal being formed by a space in a substantially axial direction between the surfaces of the two rotating parts and having a seal placed therein.
Inventors
- 👤 Hendrikus Jan Kapaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:21
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7886; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/183; F16C19/184; F16C19/185; F16C19/187; F16C33/723; F16J; F16J15/00; F16J15/16; F16J15/32; F16C2326/00; F16C2326/01; F16C2326/02
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
100 words
A rolling bearing comprising two rotating parts formed by an inner and outer race fitted with mounting flanges, a plurality of rows of rolling elements, separated by cages, positioned between said races, and plane sealing means for sealing said races to prevent the ingress of foreign substances while retaining any lubricant that is present in the space between said races and the seal, said plane sealing means including a space formed in a substantially axial direction by opposing surfaces of said two rotating parts and having said seal placed therein in contact with said opposing surfaces and across said space.
Claim 2
Dependent Claim
100 words
A rolling bearing comprising two rotating parts formed by an inner and outer race fitted with mounting flanges, a plurality of rows of rolling elements, separated by cages, positioned between said races, and plane sealing means for sealing said races to prevent the ingress of foreign substances while retaining any lubricant that is present in the space between said races and the seal, said plane sealing means including a space formed in a substantially axial direction by opposing surfaces of said two rotating parts and having said seal placed therein in contact with said opposing surfaces and across said space.
Claim 3
Dependent Claim
50 words
A rolling bearing in accordance with claim 1, wherein said space is bounded by a first side of said outer race and a portion of a mounting flange of said inner race, said portion extending over said side at a short distance therefrom, whereby a comparatively wide seal is obtained.
Claim 4
Dependent Claim
35 words
A rolling bearing in accordance with claim 1, wherein the one of said mounting flanges extending over said outer race is formed by an annular element fastened to the mounting flange of said inner race.
Claim 5
Dependent Claim
21 words
A rolling bearing in accordance with claim 3, wherein a raised edge of said annular element is welded to said flange.
Claim 6
Dependent Claim
27 words
A rolling bearing in accordance with claim 1, wherein said seal is of a symmetrical cross-section, placed completely over said outer race and lying within its circumference.
Claim 7
Dependent Claim
17 words
A rolling bearing in accordance with claim 5, wherein said seal comprises one single comparatively wide ring.
Claim 8
Dependent Claim
18 words
A rolling bearing in accordance with claim 1, wherein said seal is formed by several adjacent sealing rings.
Claim 9
Dependent Claim
18 words
A rolling bearing in accordance with claim 1, wherein said seal is helically wound round said outer race.
Claim 10
Dependent Claim
14 words
A rolling bearing in accordance with claim 1, wherein said seal comprises packing cord.
Claim 11
Dependent Claim
19 words
A rolling bearing in accordance with claim 1, wherein said seal consists of various layers of different sealing material.
Claim 12
Dependent Claim
30 words
A rolling bearing in accordance with claim 1, wherein said seal is formed by a plate, the edge of which is fitted into a mounting flange of said outer race.
Claim 13
Dependent Claim
26 words
A rolling bearing in accordance with claim 11, wherein said plate is a protecting element for an adjusting mechanism for said races and said rolling elements.
Claim 14
Dependent Claim
65 words
A rolling bearing in accordance with claim 1, wherein each row of said plurality of rows of rolling elements is placed on a separate race, said races abutting under a given load, means for adjusting said races and said seal, said means including an adjuster ring or plate and locking bolts, adjustable in relation to each other and in relation to the sealing surface respectively.
Claim 15
Dependent Claim
17 words
A rolling bearing in accordance with claim 1, wherein said inner race contains a solid center part.
Claim 16
Dependent Claim
56 words
A rolling bearing in accordance with claim 1, wherein said rolling elements are placed in tracks that form into said races, said inner race including a solid center part being fitted with a plate or flange secured thereto, a raised edge of said plate or flange extending over said outer race, thereby forming said sealing space.
Claim 17
Dependent Claim
25 words
A rolling bearing in accordance with claim 15, wherein said mounting plate or flange is made from a different material than said outer race part.
Claim 18
Dependent Claim
28 words
A rolling bearing in accordance with claim 1, wherein said contact pressure between said seal and said sealing surface is adjustable and re-adjustable in a mainly axial direction.
Claim 19
Dependent Claim
94 words
A rolling bearing comprising relatively rotatable inner and outer race assemblies separated by a plurality of rows of rolling elements, said inner and outer race assemblies including a first sealing means sealing one side of said bearing from ingress of foreign substances to said rolling elements, a second sealing means sealing the other side of said bearing from ingress of foreign substances, said second sealing means including first and second planar seal boundaries formed by axially aligned separated surfaces of said inner and outer race assemblies, and a seal fixed between said separated surfaces.
Claim 20
Dependent Claim
94 words
A rolling bearing comprising relatively rotatable inner and outer race assemblies separated by a plurality of rows of rolling elements, said inner and outer race assemblies including a first sealing means sealing one side of said bearing from ingress of foreign substances to said rolling elements, a second sealing means sealing the other side of said bearing from ingress of foreign substances, said second sealing means including first and second planar seal boundaries formed by axially aligned separated surfaces of said inner and outer race assemblies, and a seal fixed between said separated surfaces.
Claim 21
Dependent Claim
27 words
A rolling bearing in accordance with claim 18, wherein said seal is of a symmetrical cross-section, placed completely over said outer race and lying within its circumference.
Claim 22
Dependent Claim
17 words
A rolling bearing in accordance with claim 18, wherein said seal comprises one single comparatively wide ring.
Claim 23
Dependent Claim
18 words
A rolling bearing in accordance with claim 18, wherein said seal is formed by several adjacent sealing rings.
Claim 24
Dependent Claim
18 words
A rolling bearing in accordance with claim 18, wherein said seal is helically wound round said outer race.
Claim 25
Dependent Claim
14 words
A rolling bearing in accordance with claim 18, wherein said seal comprises packing cord.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |