US3870383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette-type bearing unit
Assignee: Daido Metal Co Ltd
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Filing: 1974-06-05
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Granted: 1975-03-11
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Expires: 1994-06-05
Abstract
Abstract A cassette-type bearing unit in which a bearing housing comprising outer and inner walls connected together in the radial direction by means of ribs includes therein a bearing, a fibrous member having oil affinity, and the like, so that a structure for automatically supplying lubricating oil is formed, and which can be produced at a low manufacturing cost.
Inventors
- 👤 Nobukazu Morisaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:38
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/103; F16C33/72; F16C33/74; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
307 words
A cassette-type bearing unit comprising; a bearing housing including an annular inner wall concentric with the axis and extending in the axial direction, an annular outer wall concentric with said inner wall, and ribs extending radially between said inner and outer walls and connecting said inner and outer walls together in the radial direction, and further including a shaft hole defined by the inner surface of said inner wall, recesses formed inwardly of the both axial ends of said outer wall and outwardly of the end edges of said ribs, through holes defined by said ribs and establishing axial communication between said two recesses at positions radially outwardly of said inner wall an oil hole extending from said through hole to said shaft hole; a bushing-type plain bearing or a ball-and-roller bearing press fitted into said shaft hole to support together with said housing the load applied to the main shaft in the radial direction; a thrust plate inserted into at least one of said recesses to support the thrust produced in the main shaft; a thrust washer provided in at least one of said recesses to be in contact with said thrust plate and to be concentric with said shaft hole and adapted to support the thrust produced in the main shaft together with said thrust plate; first and second oil slingers having oil-throwing collars which are provided outwardly of the both ends of said bearing to be concentric with said bearing and adapted to prevent the outflow of lubricating oil running on the main shaft; first and second end cups press fitted to the inner surface of the outer wall at the both axial ends of the housing; and a fibrous member having oil affinity filled in said recesses and said through holes to hold lubricating oil and supply the lubricating oil to the bearing.
Claim 2
Dependent Claim
307 words
A cassette-type bearing unit comprising; a bearing housing including an annular inner wall concentric with the axis and extending in the axial direction, an annular outer wall concentric with said inner wall, and ribs extending radially between said inner and outer walls and connecting said inner and outer walls together in the radial direction, and further including a shaft hole defined by the inner surface of said inner wall, recesses formed inwardly of the both axial ends of said outer wall and outwardly of the end edges of said ribs, through holes defined by said ribs and establishing axial communication between said two recesses at positions radially outwardly of said inner wall an oil hole extending from said through hole to said shaft hole; a bushing-type plain bearing or a ball-and-roller bearing press fitted into said shaft hole to support together with said housing the load applied to the main shaft in the radial direction; a thrust plate inserted into at least one of said recesses to support the thrust produced in the main shaft; a thrust washer provided in at least one of said recesses to be in contact with said thrust plate and to be concentric with said shaft hole and adapted to support the thrust produced in the main shaft together with said thrust plate; first and second oil slingers having oil-throwing collars which are provided outwardly of the both ends of said bearing to be concentric with said bearing and adapted to prevent the outflow of lubricating oil running on the main shaft; first and second end cups press fitted to the inner surface of the outer wall at the both axial ends of the housing; and a fibrous member having oil affinity filled in said recesses and said through holes to hold lubricating oil and supply the lubricating oil to the bearing.
Claim 3
Dependent Claim
307 words
A cassette-type bearing unit comprising; a bearing housing including an annular inner wall concentric with the axis and extending in the axial direction, an annular outer wall concentric with said inner wall, and ribs extending radially between said inner and outer walls and connecting said inner and outer walls together in the radial direction, and further including a shaft hole defined by the inner surface of said inner wall, recesses formed inwardly of the both axial ends of said outer wall and outwardly of the end edges of said ribs, through holes defined by said ribs and establishing axial communication between said two recesses at positions radially outwardly of said inner wall an oil hole extending from said through hole to said shaft hole; a bushing-type plain bearing or a ball-and-roller bearing press fitted into said shaft hole to support together with said housing the load applied to the main shaft in the radial direction; a thrust plate inserted into at least one of said recesses to support the thrust produced in the main shaft; a thrust washer provided in at least one of said recesses to be in contact with said thrust plate and to be concentric with said shaft hole and adapted to support the thrust produced in the main shaft together with said thrust plate; first and second oil slingers having oil-throwing collars which are provided outwardly of the both ends of said bearing to be concentric with said bearing and adapted to prevent the outflow of lubricating oil running on the main shaft; first and second end cups press fitted to the inner surface of the outer wall at the both axial ends of the housing; and a fibrous member having oil affinity filled in said recesses and said through holes to hold lubricating oil and supply the lubricating oil to the bearing.
Claim 4
Dependent Claim
307 words
A cassette-type bearing unit comprising; a bearing housing including an annular inner wall concentric with the axis and extending in the axial direction, an annular outer wall concentric with said inner wall, and ribs extending radially between said inner and outer walls and connecting said inner and outer walls together in the radial direction, and further including a shaft hole defined by the inner surface of said inner wall, recesses formed inwardly of the both axial ends of said outer wall and outwardly of the end edges of said ribs, through holes defined by said ribs and establishing axial communication between said two recesses at positions radially outwardly of said inner wall an oil hole extending from said through hole to said shaft hole; a bushing-type plain bearing or a ball-and-roller bearing press fitted into said shaft hole to support together with said housing the load applied to the main shaft in the radial direction; a thrust plate inserted into at least one of said recesses to support the thrust produced in the main shaft; a thrust washer provided in at least one of said recesses to be in contact with said thrust plate and to be concentric with said shaft hole and adapted to support the thrust produced in the main shaft together with said thrust plate; first and second oil slingers having oil-throwing collars which are provided outwardly of the both ends of said bearing to be concentric with said bearing and adapted to prevent the outflow of lubricating oil running on the main shaft; first and second end cups press fitted to the inner surface of the outer wall at the both axial ends of the housing; and a fibrous member having oil affinity filled in said recesses and said through holes to hold lubricating oil and supply the lubricating oil to the bearing.
Claim 5
Dependent Claim
62 words
A cassette-type bearing unit in accordance with claim 1 in which said bearing housing is constructed of a bearing alloy, characterized in that the inner surface of said housing which defines the shaft hole forms a bearing surface for supporting the main shaft, and said housing is formed integrally with a bearing and has dual function As a housing and a bearing.
Claim 6
Dependent Claim
86 words
A cassette-type bearing unit in accordance with claim 1 in which said thrust plate is provided with a central hole and an annular indentation formed on the outer periphery of said central hole, characterized in that the thrust washer is arranged to be in surface-to-surface contact with said annular indentation, and a rubber washer is provided between said first or second oil slinger and said thrust washer so that said thrust washer is placed in surface-to-surface contact with said thrust plate in a very sure manner.
Claim 7
Dependent Claim
44 words
A cassette-type bearing unit in accordance with claim 1 in which said thrust plate is interposed between the end edges of said ribs and the outer peripheral edge of said first or second end cup so as to be fixed securely in said recess.
Claim 8
Dependent Claim
22 words
A cassette-type bearing unit in accordance with claim 1 in which said bearing housing is a die casting made of zinc alloy.
Claim 9
Dependent Claim
26 words
A cassette-type bearing unit in accordance with claim 2 in which the bearing alloy of which said bearing housing is made is an aluminum bearing alloy.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |