US3600780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving bearing wear
Assignee: Motors Liquidation Co
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Filing: 1970-08-07
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Granted: 1971-08-24
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Expires: 1990-08-07
Abstract
Abstract A method of improving machine bearing wear wherein components of a rotating bearing assembly are immersed in oil and heated to an approximate temperature of 400* F in an air atmosphere from 60 to 90 minutes. The bearing components are immersed in a hydrocarbon mineral lubricating oil, the excess oil is removed leaving the components coated with an adherent film, and the bearings are then heated to form a varnish film from the adherent film which when placed in an operative environment with normal lubrication provides longer wear characteristics.
Inventors
- 👤 Dominick F Dolce
- 👤 Walter G Poland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:18
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; F16C33/66; F16C33/6637; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671; Y10T29/49673; Y10T29/49679; Y10T29/49682; Y10T29/49702; Y10T29/49826; Y10T29/4984
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
The process comprising the following steps: coating separately the race elements and the rolling elements of a roller-type bearing with a hydrocarbon mineral lubricant; removing said coating so as to leave a thin adherent film; baking the elements in the presence of air at a temperature of about 400* F. for about 90 minutes, thereby producing an adherent varnishlike coating having a thickness in the range of 0.0005 to 0.003 inches thereon; assembling the elements to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers; applying a hydrocarbon mineral lubricant to the bearing as a whole; and working the bearing under load for a prolonged period thereafter, with the varnishlike coating coacting with the last mentioned lubricant to provide greater bearing life than that provided in the absence of the varnishlike coating.
Claim 2
Dependent Claim
140 words
The process comprising the following steps: coating separately the race elements and the rolling elements of a roller-type bearing with a hydrocarbon mineral lubricant; removing said coating so as to leave a thin adherent film; baking the elements in the presence of air at a temperature of about 400* F. for about 90 minutes, thereby producing an adherent varnishlike coating having a thickness in the range of 0.0005 to 0.003 inches thereon; assembling the elements to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers; applying a hydrocarbon mineral lubricant to the bearing as a whole; and working the bearing under load for a prolonged period thereafter, with the varnishlike coating coacting with the last mentioned lubricant to provide greater bearing life than that provided in the absence of the varnishlike coating.
Claim 3
Dependent Claim
171 words
The process comprising the following steps: coating separately the inner and outer race elements and the rolling elements of a roller-type bearing with a hydrocarbon mineral lubricant; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F. for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0005 to 0.003 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible hydrocarbon mineral lubricant to the bearing as a whole; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
Claim 4
Dependent Claim
171 words
The process comprising the following steps: coating separately the inner and outer race elements and the rolling elements of a roller-type bearing with a hydrocarbon mineral lubricant; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F. for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0005 to 0.003 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible hydrocarbon mineral lubricant to the bearing as a whole; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
Claim 5
Dependent Claim
164 words
The process comprising the following steps: coating separately the inner and outer race elements and the rolling elements of a roller-type bearing with a lubricant; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at an elevated temperature and for a time sufficient to produce thereon an enveloping adherent varnishlike coating having a thickness iN the range of 0.0005 to 0.003 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible lubricant to the bearing as a whole for lubrication during the operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating in association with the compatible lubricant provides greater bearing life than that provided in the absence of the varnishlike coating.
Claim 6
Dependent Claim
164 words
The process comprising the following steps: coating separately the inner and outer race elements and the rolling elements of a roller-type bearing with a lubricant; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at an elevated temperature and for a time sufficient to produce thereon an enveloping adherent varnishlike coating having a thickness iN the range of 0.0005 to 0.003 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible lubricant to the bearing as a whole for lubrication during the operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating in association with the compatible lubricant provides greater bearing life than that provided in the absence of the varnishlike coating.
Claim 7
Dependent Claim
188 words
The process comprising the following steps: coating separately the inner and outer race elements and the roller elements of a roller-type bearing with a hydrocarbon mineral lubricant having a Total Acid Number less than 0.10; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F. for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0014 to 0.0024 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible hydrocarbon mineral lubricant having a Total Acid Number less than 0.10 to lubricate the bearing during operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
Claim 8
Dependent Claim
188 words
The process comprising the following steps: coating separately the inner and outer race elements and the roller elements of a roller-type bearing with a hydrocarbon mineral lubricant having a Total Acid Number less than 0.10; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F. for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0014 to 0.0024 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible hydrocarbon mineral lubricant having a Total Acid Number less than 0.10 to lubricate the bearing during operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
Claim 9
Dependent Claim
186 words
The process comprising the following steps: coating separately the inner and outer race elements and the roller elements of a roller-type bearing with a paraffin-type lubricant having a Total Acid Number less than 0.03; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0014 to 0.0024 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible paraffin-type lubricant having a Total Acid Number less than 0.03 to lubricate the bearing during operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
Claim 10
Dependent Claim
186 words
The process comprising the following steps: coating separately the inner and outer race elements and the roller elements of a roller-type bearing with a paraffin-type lubricant having a Total Acid Number less than 0.03; removing the coating to an extent leaving a thin adherent film; baking the elements in the presence of oxygen at a temperature of about 400* F for a period of approximately 90 minutes thereby producing thereon an enveloping adherent varnishlike coating having a thickness in the range of 0.0014 to 0.0024 inches; assembling the elements so as to define a roller-type bearing with the inner and outer races coupled in rolling action by the rollers and the otherwise contacting parts being separated by said varnishlike coating; applying a compatible paraffin-type lubricant having a Total Acid Number less than 0.03 to lubricate the bearing during operation thereof; and working the bearing under load for a prolonged period thereafter and within the temperature and pressure ranges wherein the varnishlike coating is rejuvenated substantially as rapidly as it is destroyed, whereby the bearing retains substantially its initial-use condition and is characterized by long service life.
References Cited (Backward Citations)
US3500525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |