US3419949A - Method of reconditioning crankshafts, camshafts, and the like - Google Patents

Method of reconditioning crankshafts, camshafts, and the like Download PDF

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US3419949A
US3419949A US601652A US60165266A US3419949A US 3419949 A US3419949 A US 3419949A US 601652 A US601652 A US 601652A US 60165266 A US60165266 A US 60165266A US 3419949 A US3419949 A US 3419949A
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segments
adhesive
bearing
shaft
sleeve
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US601652A
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Robert L Huebner
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F16C2220/70—Shaping by removing material, e.g. machining by grinding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/40—Material joints with adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49286—Crankshaft making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49647—Plain bearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49732—Repairing by attaching repair preform, e.g., remaking, restoring, or patching
    • Y10T29/49734—Repairing by attaching repair preform, e.g., remaking, restoring, or patching and removing damaged material

Definitions

  • This invention pertains to reestablishing bearing portions of crankshafts, camshafts, and similar shafts to their original diameter, so that standard sized main and connecting rod bearings may be used.
  • the present invention avoids ditiiculties of the prior art methods by providing relatively thin sleeves, or arcuate segments suicient to make up sleeves.
  • Such sleeves or segments may be provided afrom high quality steel, steel alloys, or other metal alloys having better wearing properties than the bearing surfaces of the original shafts.
  • the bearing portions of the shafts are turned to round and reduced to the inner diameter of the sleeves.
  • the sleeves are then cemented onto the shaft under pressure, using an epoxy adhesive. After setting of the adhesive through chemical action, the exterior surface of the sleeves are ground to accommodate standard sized bearings, so that the shaft after repair is equally as good or better than the original shaft, depending upon the quality of the metal used in the sleeves.
  • FIG. 1 is a perspective view of the segments in making up a sleeve.
  • FIG. 2 is a section through the bearing portion of a crankshaft illustrating the step of turning the bearing portion to round and for fitting the inner diameter of the segments of FIG. l.
  • FIG. 3 is a similar view, and illustrating the application of the epoxy adhesive mixture which contains a hardener for chemically setting the adhesive.
  • FIG. 4 is a similar view, illustrating the application of the segments onto the bearing portion of the shaft.
  • FIG. 5 is a perspective view of a portion of the crankshaft, illustrating the clamp for applying pressure on the segments while the fadhesive is setting.
  • FIG. 6 is a view of the shaft ready for grinding the exterior surface of the sleeve to the size of the original
  • 1 designates a portion of a crankshaft having a worn main bearing portion 2, which may have been worn to out-of-round, scored because of lack of lubrication, or for other reason must be repaired to establish a truly cylindrical and smooth bearing surface.
  • a worn main bearing portion 2 which may have been worn to out-of-round, scored because of lack of lubrication, or for other reason must be repaired to establish a truly cylindrical and smooth bearing surface.
  • Such a surface is provided by 4a metal sleeve or shell 3 which may consist of two half-segments 4 and 5, as illustrated in FIG. 1.
  • the segments 4 and 5 are preshaped of a Wear resistant metal or alloy which may be different from the metal of the shaft 1.
  • Crankshafts are usually made from alloy steel designated by the class numbers 1045, 1145, 3135, 3140, 3141 and 4340'.
  • the low numbers are for small gas engines and the larger number for diesel and large engines.
  • the segments 4 and 5 will preferably be formed from the alloy corresponding to the class number of the shaft. If desired. the segments may be made of one of the more expensive wear resistant, non-corrosive alloys.
  • the segments are of a size to cover the bearing surface fand of a thickness to leave metal of at least ve Ithousandths after machining or grinding back to the standard size of the shaft bearing as later to be described.
  • the shaping of the sleeve is dependent upon the metal used therein.
  • the sleeve may be of strip form and brought into sleeve shape by wrapping about the bearing or journal to be repaired.
  • the segments composing the sleeve are preshaped to form a cylinder at the time they are assembled on the shaft.
  • the bearing portion of the shaft is machined down to the inner diameter of the sleeve, to bring the bearing portion into cylindrical shape, and turned to size as indicated by the curved shading 6 in FIGS. 2 and 3.
  • the segments 4 and 5 are cemented thereon by an epoxy adhesive ndicated by the stippling 7.
  • Suitable adhesives of this type are readily available on the market, such as the ⁇ adhesive manufactured by the Devcon Corporation, Danvers, Mass., under the trade naine Devcon, the particular adhesive being known :by the designation Devcon C, which is a plastic compound containing fine steel powders and epoxy plastics to which a hardener is added just before use.
  • the plastic with the hardener therein makes a paste that is easily spread upon the machined surface of the bearing portion of t-he ⁇ shaft by a paddle or like applicator 8 in a substantially smooth, uniform coating, after which the segments 4 and 5 are applied over the bearing portion of the shaft as shown in FIG. 4 and brought into contact with the adhesive 7.
  • a clamp 9 is then applied to the segments to hold pressure thereon until the adhesive becomes thoroughly set.
  • the clamp may be of any type capable of providing the necessary pressure.
  • the clamp 9 consists of blocks 10 and 11 having facing portions 12 and 13 each provided with a substantially semi-cylindrical recess 14 having a radius of curvature substantially the outer radius of the segments, to closely lit the segments and draw them smoothly and evenly to the adhesive.
  • the blocks are drawn together by bolts and 16 to apply the desired pressure. Any excess of adhesive may be wiped off before setting thereof.
  • the adhesive sets in about two hours, however, the clamp 9 is preferably left on overnight to assure a strong, permanent, tough bond of the segments 4 and 5 to the crankshaft.
  • the next step is to grind the exterior cylindrical surface of the sleeve segments to the size of the main bearing.
  • the adhesive when set forms a strong, permanent, tough and rigid bond between the shaft and sleeve segments. It can also be machined and any protrusion may be ground off with grinding of the segments composing the sleeve.
  • the sleeve When the sleeve is finished, it provides a long lasting bearing surface having the size of the original bearing.
  • the shaft therefore, has the same strength and toughness of the original shaft, as no heat need be involved in the reconstruction thereof. There is no shrinkage or expansion in the adhesive under the working temperature of the shaft.
  • Epoxy adhesives from both sources are usually ⁇ sold in kits, and each kit contains one container of a metal and epoxy plastic and a second container of hardener, which materials are mixed together just prior to use thereof.
  • a method of reconditioning bearing portions of shafts including turning the bearing portion to a circular cross section
  • the adhesive is a mixture of epoxy plastic
  • the adhesive is a mixture of epoxy plastic
  • split sleeve comprises cylindrical segments sufficient to encompass the turned-down bearing portion ofthe shaft.

Description

United States Patent O "ice 8 Claims ABSTRACT OF THE DISCLOSURE A method of reconditioning worn shafts by reestablishing roundness of the worn portions, cementing sleeves thereon, and grinding the exterior surface of the sleeves down to the original diameters of the shafts.
BACKGROUND OF THE INVENTION Field of the invention This invention pertains to reestablishing bearing portions of crankshafts, camshafts, and similar shafts to their original diameter, so that standard sized main and connecting rod bearings may be used.
Description ofthe prior art The present methods of conditioning Worn shafts usually consist of grinding the bearing portions to establish roundness thereof and fitting thereto of undersized bearings. Such a method obviously results in removing temper of the metal through grinding olf the bearing portions, and requires a large stock of various sizes of undersized bearings.
Other common methods are to build up the Worn portions of a shaft by application of powdered metals, or by welding on metal which then -must be ground to size. These latter methods are not satisfactory because the bearing surfaces thus established do no have the lasting properties and strength of the original bearing surfaces and involve the use of heat.
SUMMARY OF THE INVENTION The present invention avoids ditiiculties of the prior art methods by providing relatively thin sleeves, or arcuate segments suicient to make up sleeves. Such sleeves or segments may be provided afrom high quality steel, steel alloys, or other metal alloys having better wearing properties than the bearing surfaces of the original shafts. The bearing portions of the shafts are turned to round and reduced to the inner diameter of the sleeves. The sleeves are then cemented onto the shaft under pressure, using an epoxy adhesive. After setting of the adhesive through chemical action, the exterior surface of the sleeves are ground to accommodate standard sized bearings, so that the shaft after repair is equally as good or better than the original shaft, depending upon the quality of the metal used in the sleeves.
BRIEF DESCRIPTION OF THE DRAWING The method of the present invention is illustrated in the accompanying drawing, wherein:
FIG. 1 is a perspective view of the segments in making up a sleeve.
FIG. 2 is a section through the bearing portion of a crankshaft illustrating the step of turning the bearing portion to round and for fitting the inner diameter of the segments of FIG. l.
FIG. 3 is a similar view, and illustrating the application of the epoxy adhesive mixture which contains a hardener for chemically setting the adhesive.
3,419,949 Patented Jan. 7, 1969 FIG. 4 is a similar view, illustrating the application of the segments onto the bearing portion of the shaft.
FIG. 5 is a perspective view of a portion of the crankshaft, illustrating the clamp for applying pressure on the segments while the fadhesive is setting.
FIG. 6 is a view of the shaft ready for grinding the exterior surface of the sleeve to the size of the original |bearing.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring more in detail to the drawing:
In carrying out -the preferred embodiment of the invention, 1 designates a portion of a crankshaft having a worn main bearing portion 2, which may have been worn to out-of-round, scored because of lack of lubrication, or for other reason must be repaired to establish a truly cylindrical and smooth bearing surface. Such a surface is provided by 4a metal sleeve or shell 3 which may consist of two half-segments 4 and 5, as illustrated in FIG. 1. The segments 4 and 5 are preshaped of a Wear resistant metal or alloy which may be different from the metal of the shaft 1.
Crankshafts are usually made from alloy steel designated by the class numbers 1045, 1145, 3135, 3140, 3141 and 4340'. The low numbers are for small gas engines and the larger number for diesel and large engines. The segments 4 and 5 will preferably be formed from the alloy corresponding to the class number of the shaft. If desired. the segments may be made of one of the more expensive wear resistant, non-corrosive alloys.
The segments are of a size to cover the bearing surface fand of a thickness to leave metal of at least ve Ithousandths after machining or grinding back to the standard size of the shaft bearing as later to be described.
The shaping of the sleeve is dependent upon the metal used therein. For example, in some applications, the sleeve may be of strip form and brought into sleeve shape by wrapping about the bearing or journal to be repaired. However, in most instances the segments composing the sleeve are preshaped to form a cylinder at the time they are assembled on the shaft.
The bearing portion of the shaft is machined down to the inner diameter of the sleeve, to bring the bearing portion into cylindrical shape, and turned to size as indicated by the curved shading 6 in FIGS. 2 and 3.
After turning the bearing portion to size, the segments 4 and 5 are cemented thereon by an epoxy adhesive ndicated by the stippling 7. Suitable adhesives of this type are readily available on the market, such as the `adhesive manufactured by the Devcon Corporation, Danvers, Mass., under the trade naine Devcon, the particular adhesive being known :by the designation Devcon C, which is a plastic compound containing fine steel powders and epoxy plastics to which a hardener is added just before use. The plastic with the hardener therein makes a paste that is easily spread upon the machined surface of the bearing portion of t-he `shaft by a paddle or like applicator 8 in a substantially smooth, uniform coating, after which the segments 4 and 5 are applied over the bearing portion of the shaft as shown in FIG. 4 and brought into contact with the adhesive 7.
A clamp 9 is then applied to the segments to hold pressure thereon until the adhesive becomes thoroughly set. The clamp may be of any type capable of providing the necessary pressure. In the illustrated instance, the clamp 9 consists of blocks 10 and 11 having facing portions 12 and 13 each provided with a substantially semi-cylindrical recess 14 having a radius of curvature substantially the outer radius of the segments, to closely lit the segments and draw them smoothly and evenly to the adhesive. The
blocks are drawn together by bolts and 16 to apply the desired pressure. Any excess of adhesive may be wiped off before setting thereof. The adhesive sets in about two hours, however, the clamp 9 is preferably left on overnight to assure a strong, permanent, tough bond of the segments 4 and 5 to the crankshaft. The next step is to grind the exterior cylindrical surface of the sleeve segments to the size of the main bearing. The adhesive when set forms a strong, permanent, tough and rigid bond between the shaft and sleeve segments. It can also be machined and any protrusion may be ground off with grinding of the segments composing the sleeve. When the sleeve is finished, it provides a long lasting bearing surface having the size of the original bearing. The shaft, therefore, has the same strength and toughness of the original shaft, as no heat need be involved in the reconstruction thereof. There is no shrinkage or expansion in the adhesive under the working temperature of the shaft.
Another type of epoxy adhesive that is found to be satisfactory is sold under the trademark Humble-Weld and is distributed by Oil Field Chemical Department, Enjay Chemical Company, 8230 Stedman St., Houston, TeX.
Epoxy adhesives from both sources are usually `sold in kits, and each kit contains one container of a metal and epoxy plastic and a second container of hardener, which materials are mixed together just prior to use thereof.
An additional type of adhesive that is satisfactory is sold -under the trademark ChemWeld U-1012 and is distributed Iby Ohemweld Products Company, Big Lake, Tex.
What I claim and desire to secure by Letters Patent is:
1. A method of reconditioning bearing portions of shafts, including turning the bearing portion to a circular cross section,
covering the circumference of the bearing portion with metallic adhesive capable of taking a set, applying a split sleeve on the adhesive having a thickness to build up the bearing portion of the shaft,
and applying pressure exteriorly of the sleeve during setting of the adhesive to assure bonding of the sleeve with the shaft.
2. A method of reconditioning bearing portions of shafts as described in claim 1, and including grinding the exterior surface of the bonded-on sleeve to restore the original diameter of the bearing portion. '3. A method of reconditioning bearing portions of shafts as described in claim 1,
wherein the adhesive is a mixture of an epoxy plastic and a hardening agent. 4. A method of reconditioning bearing portions of shafts as described in claim 2,
wherein the adhesive is a mixture of an epoxy plastic and a hardening agent. 5. A method of reconditioning bearing portions of shafts as described in claim 1,
wherein the adhesive is a mixture of epoxy plastic,
powdered metal, and a hardener. 6. A method of reconditioning bearing portions of shafts as described in claim 2,
wherein the adhesive is a mixture of epoxy plastic,
powdered metal, and a hardener. 7. A method of reconditioning bearing portions of shafts as described in claim 1,
in which the split sleeve comprises cylindrical segments suficient to encompass the turned-down bearing portion ofthe shaft. 8. A method of reconditioning bearing portions of shafts as described in claim 7, and including grinding the exterior surface of the segments to the size of a bearing to be tted thereon.
References Cited UNITED STATES PATENTS 1,971,433 8/1934 Tartrais 29-l49.5 2,449,662 9/1948 Lecson 29-l49.5 X 3,006,065 10/'1961 Watson 29-401 THOMAS H. EAGER, Primary Examiner.
U.S.Cl.X.R.
US601652A 1966-12-14 1966-12-14 Method of reconditioning crankshafts, camshafts, and the like Expired - Lifetime US3419949A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885291A (en) * 1973-12-07 1975-05-27 Anthony J Dichiara Method of rebuilding a worn cam surface
US4219916A (en) * 1977-08-01 1980-09-02 Basf Aktiengesellschaft Bearing cartridge mounting method
WO1987000105A1 (en) * 1985-06-28 1987-01-15 Volzhskoe Obiedinenie Po Proizvodstvu Legkovykh Av Method of reestablishment of camshafts
FR2621510A1 (en) * 1987-10-12 1989-04-14 Foucu Colette Method of hard-facing (hooping) a bearing surface
US5390932A (en) * 1992-09-04 1995-02-21 Russo, Sr.; Robert F. Method for making like-new golf balls from reclaimed golf balls
US5427377A (en) * 1991-07-15 1995-06-27 Sumitomo Rubber Industries Ltd. Reclaimed golf-ball and a process for producing the same
US5609535A (en) * 1992-07-09 1997-03-11 Acushnet Company Method of restoring used golf ball
US20030121152A1 (en) * 2001-12-04 2003-07-03 Johnson David L. Methods for recreating fuel pump bearings
US20090080821A1 (en) * 2007-09-25 2009-03-26 Daido Metal Company Ltd 13F, Nagoya Hirokoji Bldg Plain bearing
US7857928B1 (en) 2006-04-13 2010-12-28 Lloyd Mackey Cover up
JP2012030074A (en) * 2010-08-02 2012-02-16 Nike Internatl Ltd Kit and method for customization and recycling of golf ball
US20120131799A1 (en) * 2010-11-30 2012-05-31 Gm Global Technology Operations, Inc. Main Shaft Remanufacturing
RU2453413C2 (en) * 2010-07-15 2012-06-20 Анатолий Алексеевич Зуев Method of shaft recovery
RU2455141C2 (en) * 2010-04-05 2012-07-10 Открытое акционерное общество холдинговая компания "Коломенский завод" Method of reconditioning large-size nitride-hardened crankshaft scored hollow journals by high-frequency current
US20170045130A1 (en) * 2015-08-13 2017-02-16 Caterpillar Inc. Shaft journals with exothermically bonded sleeves
RU2673900C1 (en) * 2017-12-26 2018-12-03 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" Method of repairing strengthened by induction hardening crankshafts of internal combustion engines
RU2675868C1 (en) * 2017-12-04 2018-12-25 Владимир Иванович Ищенко Method of repairing the strengthened by induction hardening crankshafts of internal combustion engines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971433A (en) * 1928-12-20 1934-08-28 Tartrais Eugene Henri Method for coating cylindrical members with a hard material
US2449662A (en) * 1945-02-12 1948-09-21 Stanley R Leeson Journal bearing sleeve
US3006065A (en) * 1959-01-30 1961-10-31 Ralph O Watson Method of repairing worn surfaces in shafts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971433A (en) * 1928-12-20 1934-08-28 Tartrais Eugene Henri Method for coating cylindrical members with a hard material
US2449662A (en) * 1945-02-12 1948-09-21 Stanley R Leeson Journal bearing sleeve
US3006065A (en) * 1959-01-30 1961-10-31 Ralph O Watson Method of repairing worn surfaces in shafts

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885291A (en) * 1973-12-07 1975-05-27 Anthony J Dichiara Method of rebuilding a worn cam surface
US4219916A (en) * 1977-08-01 1980-09-02 Basf Aktiengesellschaft Bearing cartridge mounting method
WO1987000105A1 (en) * 1985-06-28 1987-01-15 Volzhskoe Obiedinenie Po Proizvodstvu Legkovykh Av Method of reestablishment of camshafts
FR2621510A1 (en) * 1987-10-12 1989-04-14 Foucu Colette Method of hard-facing (hooping) a bearing surface
US5427377A (en) * 1991-07-15 1995-06-27 Sumitomo Rubber Industries Ltd. Reclaimed golf-ball and a process for producing the same
US5609535A (en) * 1992-07-09 1997-03-11 Acushnet Company Method of restoring used golf ball
US5390932A (en) * 1992-09-04 1995-02-21 Russo, Sr.; Robert F. Method for making like-new golf balls from reclaimed golf balls
US5569418A (en) * 1992-09-04 1996-10-29 Russo, Sr.; Robert F. Method for making like-new golf balls from reclaimed golf balls
US20030121152A1 (en) * 2001-12-04 2003-07-03 Johnson David L. Methods for recreating fuel pump bearings
US7857928B1 (en) 2006-04-13 2010-12-28 Lloyd Mackey Cover up
US20090080821A1 (en) * 2007-09-25 2009-03-26 Daido Metal Company Ltd 13F, Nagoya Hirokoji Bldg Plain bearing
RU2455141C2 (en) * 2010-04-05 2012-07-10 Открытое акционерное общество холдинговая компания "Коломенский завод" Method of reconditioning large-size nitride-hardened crankshaft scored hollow journals by high-frequency current
RU2453413C2 (en) * 2010-07-15 2012-06-20 Анатолий Алексеевич Зуев Method of shaft recovery
JP2012030074A (en) * 2010-08-02 2012-02-16 Nike Internatl Ltd Kit and method for customization and recycling of golf ball
US20120131799A1 (en) * 2010-11-30 2012-05-31 Gm Global Technology Operations, Inc. Main Shaft Remanufacturing
US8701259B2 (en) * 2010-11-30 2014-04-22 GM Global Technology Operations LLC Main shaft remanufacturing
US20170045130A1 (en) * 2015-08-13 2017-02-16 Caterpillar Inc. Shaft journals with exothermically bonded sleeves
RU2675868C1 (en) * 2017-12-04 2018-12-25 Владимир Иванович Ищенко Method of repairing the strengthened by induction hardening crankshafts of internal combustion engines
RU2673900C1 (en) * 2017-12-26 2018-12-03 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" Method of repairing strengthened by induction hardening crankshafts of internal combustion engines

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