US4309916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing apparatus for gear type power transmission system
Assignee: NSK Ltd
•
Filing: 1980-01-14
•
Granted: 1982-01-12
•
Expires: 2000-01-14
Abstract
Abstract Bearing apparatus for gear type power transmission systems comprising a gear casing containing a lubricating oil, gearing for power transmission retained in the casing and a bearing carried in the casing for rotatably supporting the gear shaft employs a seal for the bearing containing a lubricant so that the bearing is lubricated separately and independently of the oil in the casing.
Inventors
- 👤 Takeo Ohkuma
- 👤 Kyozaburo Furumura
- 👤 Akihiko Tanaka
- 👤 Shinichi Shirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/029; F16C; F16C19/00; F16C19/54; F16C19/546; F16C19/547; F16C19/548; F16C19/56; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6637; F16C33/6696; F16H57/04; F16C2361/00; F16C2361/61; F16H48/00; F16H48/38; F16H48/42; F16H2048/423; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19991
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
68 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting the input and output shaft means, the bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 2
Dependent Claim
68 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting the input and output shaft means, the bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 3
Dependent Claim
57 words
A power transmission system according to claim 1, further comprising counter shaft means for transmitting the power from the input shaft means to the output shaft means therethrough, and bearing means for supporting said countershaft means, being sealed from said lubricant oil contained in said casing and containing lubricant for lubricating the bearing means supporting said countershaft.
Claim 4
Dependent Claim
35 words
A power transmission system according to claim 1 or 2, wherein said lubricant in the bearing means is lubricating oil which has a higher viscosity than that of said lubricant oil contained in the casing.
Claim 5
Dependent Claim
19 words
A power transmission system according to claim 1 or 2, wherein said lubricant in the bearing means is grease.
Claim 6
Dependent Claim
21 words
A power transmission system according to claim 1 or 2, wherein said lubricant for the bearing means is a solid lubricant.
Claim 7
Dependent Claim
19 words
A power transmission system according to claim 1 or 2, wherein said bearing means is provided with sealing means.
Claim 8
Dependent Claim
53 words
A power transmission system according to claim 6, wherein said bearing means includes an outer and inner races and balls supported therebetween, said sealing means including a pair of sealing elements each secured to one of the outer and inner races and contacting at its tip with the other one of the races.
Claim 9
Dependent Claim
53 words
A final reduction gear mechanism for vehicles comprising a casing containing a lubricant oil, pinion shaft means, the pinion shaft means being lubricated by said lubricant oil, bearing means supporting the pinion shaft means, and sealing means for the bearing means to contain a lubricant sealed from and independent of said lubricant oil.
Claim 10
Dependent Claim
53 words
A final reduction gear mechanism for vehicles comprising a casing containing a lubricant oil, pinion shaft means, the pinion shaft means being lubricated by said lubricant oil, bearing means supporting the pinion shaft means, and sealing means for the bearing means to contain a lubricant sealed from and independent of said lubricant oil.
Claim 11
Dependent Claim
51 words
A final reduction gear mechanism according to claim 8, wherein said bearing means includes outer and inner races and rollers supported therebetween, and said sealing means includes a pair of sealing elements each secured to one of said races and contacting at its tip with the other one of the races.
Claim 12
Dependent Claim
33 words
A final reduction gear mechanism according to claim 8, wherein the lubricant contained in the bearing is a lubricating oil which has a higher viscosity than said lubricant oil contained in the casing.
Claim 13
Dependent Claim
18 words
A final reduction gear mechanism according to claim 8, wherein said lubricant in the bearing means is grease.
Claim 14
Dependent Claim
19 words
A final reduction gear mechanism according to claim 8, wherein said lubricant in the bearing means is a lubricant.
Claim 15
Dependent Claim
65 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said input shaft, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 16
Dependent Claim
65 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said input shaft, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 17
Dependent Claim
65 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said output shaft, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 18
Dependent Claim
65 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, gear means for transmitting the power from the input shaft means to the output shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said output shaft, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 19
Dependent Claim
74 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, counter shaft means, gear means for transmitting the power from the input shaft means to the output shaft means through the counter shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said counter shaft means, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
Claim 20
Dependent Claim
74 words
A power transmission system for vehicles comprising a casing containing a lubricant oil, input shaft means, output shaft means, counter shaft means, gear means for transmitting the power from the input shaft means to the output shaft means through the counter shaft means, the gear means being lubricated by the lubricant oil, and bearing means supporting said counter shaft means, said bearing means containing a lubricant sealed from and independent of said lubricant oil.
References Cited (Backward Citations)
US1929183A
Cited
US2171176A
Cited
US2135477A
Cited
US3198735A
Cited
US3167969A
Cited
US4090748A
Cited
US4227427A
Cited
US4222283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-11 | 1985-07-13 | 1986-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-11 | 1989-07-13 | 1990-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-11 | 1993-07-13 | 1994-01-12 | $7700.00 | Window Closed / Lapsed |