US4138168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial securing assembly for roller or ball bearings
Assignee: ZF Friedrichshafen AG
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Filing: 1977-12-20
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Granted: 1979-02-06
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Expires: 1997-12-20
Abstract
Abstract An axial securing assembly for a rolling bearing in which the outer race is received in an undivided housing or housing cover and surrounds an array of bearing balls or rollers relative to which the inner race is rotatable. According to the invention, the housing is formed with a cylindrical bore in which the outer race is received and the outer race is provided with an outwardly open circumferential groove in which a spring ring is partly received. The spring ring extends radially outwardly into an inwardly open groove formed in the cylindrical wall of the housing and the latter is provided with a radial depth equal to or greater than the radial width of the spring ring. Along the periphery of the bearing bore formed in this housing, there is provided at least one recess affording axial access to the ends of the spring ring so that the mounting tool can be inserted into the spring ring to spread the latter apart and permit the spring ring to engage in the outwardly open groove of the outer race.
Inventors
- 👤 Werner Herlitzek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:15
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2300/00; F16C2300/02; F16C35/063; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
244 words
A bearing assembly comprising: an undivided housing member formed with a cylindrical bore and provided between opposite axial faces of said member with an inwardly open circumferential groove; a rolling bearing received in said bore and comprising a cylindrical outer race close-fitting in said bore, an inner race and a plurality of rolling bodies between said races, said outer race being formed with an outwardly open circumferential groove; and a spring ring received in said grooves and having a pair of symmetrical flat lugs lying in the plane of the remainder of said ring, each lug having a hole, said member being formed along one of said faces and adjacent said bore with an axially open recess of limited circumferential dimension extending to said inwardly open groove but terminating short of the other face for receiving a tool engageable in the holes of said lugs of said spring ring to enable the spreading thereof into said inwardly open groove to permit insertion of said outer race into and removal of said outer race from said bore, said inwardly open groove having a radial depth at least equal to the radial width of said spring ring, said outwardly open groove having a radial depth less than the radial width of said spring ring, said recess having a circumferential length sufficient to enable spreading of the ends of said spring ring for full recessing of said spring ring by said tool into said inwardly open groove.
Claim 2
Dependent Claim
244 words
A bearing assembly comprising: an undivided housing member formed with a cylindrical bore and provided between opposite axial faces of said member with an inwardly open circumferential groove; a rolling bearing received in said bore and comprising a cylindrical outer race close-fitting in said bore, an inner race and a plurality of rolling bodies between said races, said outer race being formed with an outwardly open circumferential groove; and a spring ring received in said grooves and having a pair of symmetrical flat lugs lying in the plane of the remainder of said ring, each lug having a hole, said member being formed along one of said faces and adjacent said bore with an axially open recess of limited circumferential dimension extending to said inwardly open groove but terminating short of the other face for receiving a tool engageable in the holes of said lugs of said spring ring to enable the spreading thereof into said inwardly open groove to permit insertion of said outer race into and removal of said outer race from said bore, said inwardly open groove having a radial depth at least equal to the radial width of said spring ring, said outwardly open groove having a radial depth less than the radial width of said spring ring, said recess having a circumferential length sufficient to enable spreading of the ends of said spring ring for full recessing of said spring ring by said tool into said inwardly open groove.
Claim 3
Dependent Claim
24 words
The assembly defined in claim 1 wherein a plurality of such recesses are provided in said member in angularly equispaced relationship along said bore.
Claim 4
Dependent Claim
72 words
The assembly defined in claim 1 further comprising an internally splined hollow shaft received in said inner race, said hollow shaft being provided with a cylindrical portion surrounded by said inner race and terminating in a shoulder against which said inner race abuts, said assembly including a further spring ring received in an outwardly open groove formed in said shaft and retaining said inner race against said shoulder, said bodies being balls.
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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |