US1715268A - Method of making bearings - Google Patents

Method of making bearings Download PDF

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Publication number
US1715268A
US1715268A US180140A US18014027A US1715268A US 1715268 A US1715268 A US 1715268A US 180140 A US180140 A US 180140A US 18014027 A US18014027 A US 18014027A US 1715268 A US1715268 A US 1715268A
Authority
US
United States
Prior art keywords
making
strip
ring
rolled
blank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US180140A
Inventor
Jr Joseph G Ayers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US180140A priority Critical patent/US1715268A/en
Application granted granted Critical
Publication of US1715268A publication Critical patent/US1715268A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • Y10T29/49679—Anti-friction bearing or component thereof
    • Y10T29/49689—Race 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
    • Y10T29/49703—Sealing

Definitions

  • An object of the invention accordingly, is-to provide an improved method of making split race rings of a quality acceptable for use in modern roller bearings.
  • Figure 1 is a plan view of the strip material, broken lines indicating a blank to be cut from the strip. v
  • Figure 2 is a plan view of the blank.
  • Figures 3 and 4 are side views indicating a blank being rolled into the form of a ring
  • Figure 5 is a perspective view of the com pleted ring.
  • a strip 4 of cold rolled steel is first heat treatedand quenched in oil in the flat condition whereby distortion is avoided or minimized.
  • a suitable heat for carbon-vanadium steel containing .55 to .65% C and 05% or more vanadium is 1550 F.
  • the strip is then too hard to roll into a sleeve so the physical properties are modified. This is satisfactorily done by packing in carbona ceous material, bringing the strip slowly to a temperature of 900 to 1100 F. and maintaining the heat about one'hour. This produces a homogeneous and uniform grain 1927. Serial no. memo.
  • the strip has a much more homogeneous structure than cold rolled steel and is harder but nevert-helesslc'an be rolled.
  • the blank 6 to be rolled preferably has one end 8 of V-shape and the, other end 10 of corresponding shape so that, when rolled, a socal ed fish tail joint is formed.
  • the blank ' is also provided with holes 9 which become oil holes in the assembled bearin If the cut blanks are heat treated individually in the flat condition,.as may be done, the holes 9 serve as a convenient means to support the blanks on pins for quenching.
  • the pointed end 8 is, .bent a little to facilitate the presentation of the piece to the rollers of any suit: able rolling apparatus. In the illustrated apparatus, rollcrs12, 14 and 16 are mounted to rotate on parallel axes, the roller 12 turning clockwise and the other rollers turning counterclockwise.
  • the piece is rolled into the form of a ring which is removed from the roller 12 by axial movement,the roller having at one end a suitably movable bearing support.
  • the rollingoperation tends to iron out any distortion that may have occurred in the treatment of the flat piece.
  • a further burnishing operation may be. given, if desired, but the ring is so nearly round and so- In testimony whereof hereunto aflix my signature.

Description

y 23, 1929- J. G. AYERS, JR 3 1,7R5268 METHOD OF MAKING BEARINGS I Filed April 1927 //v VENTO/E, JOSEPH fiYEQS /Q A H/s AT ogZ E Patented May 28, 1929.
barren smrrs PATENT orries.
.J'OSEPH G. AYERS, JR., 0F MONTCLAIR, NEW JERSEY, ASSIGNOR TO GENERAL MOTORS CORPORATION, OF DETROIT, MICHIGAN, A COBIfOBATION OF DELAWARE.
METHOD or MAKING- zananmes.
Application filed April 1',
mgs, it is hardened by heat treatment and quenched. Such a piece is so apt to go out of round,-even with the use of a quenching fixture and clamp to hold it, that it must be subsequently ground and this may increase the cost to an extent making only a little saving over the cost of a continuous or unspht, ring, which is better. a A H An object of the invention, accordingly, is-to provide an improved method of making split race rings of a quality acceptable for use in modern roller bearings.
To these ends and to improve upon methods of the character indicated, the invention also consists in the various matters hereinafter described and claimed. v
In the drawings, Figure 1 is a plan view of the strip material, broken lines indicating a blank to be cut from the strip. v
Figure 2 is a plan view of the blank.
Figures 3 and 4 are side views indicating a blank being rolled into the form of a ring;
Figure 5 is a perspective view of the com pleted ring.
A strip 4 of cold rolled steel is first heat treatedand quenched in oil in the flat condition whereby distortion is avoided or minimized. A suitable heat for carbon-vanadium steel containing .55 to .65% C and 05% or more vanadium is 1550 F. The strip is then too hard to roll into a sleeve so the physical properties are modified. This is satisfactorily done by packing in carbona ceous material, bringing the strip slowly to a temperature of 900 to 1100 F. and maintaining the heat about one'hour. This produces a homogeneous and uniform grain 1927. Serial no. memo.
structure and a smooth surface suitable for a race ring. The strip has a much more homogeneous structure than cold rolled steel and is harder but nevert-helesslc'an be rolled.
The blank 6 to be rolled preferably has one end 8 of V-shape and the, other end 10 of corresponding shape so that, when rolled, a socal ed fish tail joint is formed. The blank 'is also provided with holes 9 which become oil holes in the assembled bearin If the cut blanks are heat treated individually in the flat condition,.as may be done, the holes 9 serve as a convenient means to support the blanks on pins for quenching. The pointed end 8 is, .bent a little to facilitate the presentation of the piece to the rollers of any suit: able rolling apparatus. In the illustrated apparatus, rollcrs12, 14 and 16 are mounted to rotate on parallel axes, the roller 12 turning clockwise and the other rollers turning counterclockwise. The piece is rolled into the form of a ring which is removed from the roller 12 by axial movement,the roller having at one end a suitably movable bearing support. The rollingoperation tends to iron out any distortion that may have occurred in the treatment of the flat piece. A further burnishing operation may be. given, if desired, but the ring is so nearly round and so- In testimony whereof hereunto aflix my signature.
, JOSEPH G. AYERS, JR.
US180140A 1927-04-01 1927-04-01 Method of making bearings Expired - Lifetime US1715268A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681028A (en) * 1950-04-29 1954-06-15 Wedge Protectors Inc Welding ring
US3142887A (en) * 1960-09-14 1964-08-04 Star Kugelhalter Gmbh Dt Method of making a split annular tolerance ring
US3351999A (en) * 1965-11-04 1967-11-14 Heim Universal Corp Manufacture of self-aligned bearings
DE4127213A1 (en) * 1991-08-16 1993-02-18 Hoesch Ag THIN RING BEARING
US5630669A (en) * 1994-07-12 1997-05-20 Craft Bearing Company, Inc. Split bearing, cage for split or non-split bearing and method of cutting a member of a split bearing
US6485186B2 (en) 2000-12-01 2002-11-26 The Torrington Company Split bearing ring and method for manufacturing same
US20060026838A1 (en) * 2004-08-06 2006-02-09 Timken Us Corporation High carbon steel formed bearing assembly
US10968948B2 (en) 2018-07-19 2021-04-06 The Timken Company Split tapered roller bearing
US20220003271A1 (en) * 2020-07-02 2022-01-06 Aktiebolaget Skf Sheet metal panel raceway including recesses
US11286986B2 (en) * 2019-11-08 2022-03-29 Saint-Gobain Performance Plastics Corporation Split bearing, assembly, and method of making and using the same
US11603885B2 (en) 2020-07-02 2023-03-14 Aktiebolaget Skf Raceway element and method for its manufacture

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681028A (en) * 1950-04-29 1954-06-15 Wedge Protectors Inc Welding ring
US3142887A (en) * 1960-09-14 1964-08-04 Star Kugelhalter Gmbh Dt Method of making a split annular tolerance ring
US3351999A (en) * 1965-11-04 1967-11-14 Heim Universal Corp Manufacture of self-aligned bearings
DE4127213A1 (en) * 1991-08-16 1993-02-18 Hoesch Ag THIN RING BEARING
US5630669A (en) * 1994-07-12 1997-05-20 Craft Bearing Company, Inc. Split bearing, cage for split or non-split bearing and method of cutting a member of a split bearing
US6485186B2 (en) 2000-12-01 2002-11-26 The Torrington Company Split bearing ring and method for manufacturing same
US20060026838A1 (en) * 2004-08-06 2006-02-09 Timken Us Corporation High carbon steel formed bearing assembly
US10968948B2 (en) 2018-07-19 2021-04-06 The Timken Company Split tapered roller bearing
US11137025B2 (en) 2018-07-19 2021-10-05 The Timken Company Split tapered roller bearing
US11286986B2 (en) * 2019-11-08 2022-03-29 Saint-Gobain Performance Plastics Corporation Split bearing, assembly, and method of making and using the same
US20220003271A1 (en) * 2020-07-02 2022-01-06 Aktiebolaget Skf Sheet metal panel raceway including recesses
US11603885B2 (en) 2020-07-02 2023-03-14 Aktiebolaget Skf Raceway element and method for its manufacture

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