US1645866A - Process of making cages for roller bearings - Google Patents

Process of making cages for roller bearings Download PDF

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Publication number
US1645866A
US1645866A US147939A US14793926A US1645866A US 1645866 A US1645866 A US 1645866A US 147939 A US147939 A US 147939A US 14793926 A US14793926 A US 14793926A US 1645866 A US1645866 A US 1645866A
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United States
Prior art keywords
wings
holes
hole
pocket
roller bearings
Prior art date
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Expired - Lifetime
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US147939A
Inventor
Marcus T Lothrop
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.)
Timken Co
Original Assignee
Timken Roller Bearing Co
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Publication date
Application filed by Timken Roller Bearing Co filed Critical Timken Roller Bearing Co
Priority to US147939A priority Critical patent/US1645866A/en
Application granted granted Critical
Publication of US1645866A publication Critical patent/US1645866A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • Y10T29/49691—Cage making

Definitions

  • Patented oer 18, 1927.
  • My invention relates to a process of making cages for roller bearings.
  • a roller bearing cage is usually made of a single piece of thin metal of cylindrical or conical form with pockets therein for the rollers.
  • Fig. 1 is a side view of a conical blank suitable for making a cage for conical roller bearings, a portion of the right side being shown in section.
  • Fig. 2 is a view of aportion of said blank 1 quadrangular pocket hole punched with a. therein,
  • Fig. 3 is a view of said portion of the blank with boththe quadrangular pocket hole and smaller holes at the respective corners thereof,
  • Fig. 4 is a View of said portion with the metal betweenthe pockets and the respective corners of the quadrangular hole severed and the wings struck up
  • Fig. 5 is a sectional view on of Fig. 4,
  • Fig. 6 is a cross-section on the line 6-6 of Fig. 4,
  • Fig. 8 is a'detail view of a portion of a blank punched in accordance with the usual 55 practice heretofore prevailing.
  • the cage illustrated in the accompanying drawing is designed for use with conical or taper rollers. It comprises a conical shell A, preferablymade in a single piece with a continuous series of pockets B for the rollers. Such shells have been made out of sheet metal and also olit of tubing.
  • each pocket with a punch (or punches) of the form of the capital letter I, which produces a punch hole 1 of thesame form, as. shown in Fig. 8.
  • the ends of the main punch are straight and parallel, as hereto-v fore, but the sides extend in straight lines from one of such ends to the other so that the hole 1 punched in the blank C by my punch is of quadrangular form.
  • the sides of such hole 1 are parallel for cylindrical rollers or convergelsomewhat for taper 16 rollers.
  • Small holes 2 are then punched or drilled through the wall of the cage a slight distance away from the corners of the quadrangular hole 1 made by the main punch, and with the centers of said small holesv substantially in line with the ends of the main hole. This places the small holes 2 in proper position with reference to the lines on which the wings C are to'be struck up, and it also places such small holes with only a small amount of metal intervening hetweenthem and the main punch hole, such intervening metal bein thinnest in the line main hole.
  • the cage blank When the cage blank has been provided with the main punch holes 1 and the corner holes 2 therefor, it is submitted to the oper-- ation of striking up the win 0, which operation is performed in an or inary press with formingdies that extend the full length of the wings G. This operation shears the thin wallsof metal that so arate the small corner holes 2 from the main punch hole 1, such shearing being in line with the ends of the main punch ole and thereby making the wings C the full length of such hole.
  • the wings of the ca 0 extend the full length of the pockets an being conformed to the rollers, are eifective throughout the entire length of the rollers for the purpose of guiding, spacing .and ositioning the same.
  • the extra length of t e wings of my cage in comparison with previous ca es is of great advantage in various ways. or in- 1 stance, I heendmost portions of the, rollers,
  • roller bearing cages which consists in providing the bla with holes forthe pockets and with smaller holes near the corners of said pocket holes and striking up wings alon lines that extend alongside said pocket ho esand through said small holes. a 7 V 2'.
  • the process of making roller bearing cages which consists in providin the blank with holes for the pocket and wlth smaller holes near the corners of said pocket holes and striking upwings alon lines that extend alongside said pocket ho es andthrough Sflid small holes thereby shearing the metal intervening bet-ween the pocket holes and the small holes.
  • roller bearing cages which consists in providing the blank with quadrangular holes for the. pockets and with smaller holes adjacent thereto and in alinement with the ends of saidpocket holes, and striking up wings alongside of said pocket holes and simultaneously shearing the said small holes.
  • roller bearing cages which consists in punching quadrangular holes inthe blank, then punching small holes in alinement with the ends of said quadrangular blanks and at a slight distance from the corners thereof, and: then striking up wings alongside of the quadrangular holes along lines that pass throu h the smaller holes and thereby shearing ti intervening metal.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Description

Oct
M. T. LOTHROP PROCESS OF MAKING GAGES FOR ROLLER BEARINGS Filed Nov. 12. 1926 6 Invanfor:
Patented oer; 18, 1927.
UNITED s'raras 1,545,866 PATENT OFFICE.
MARCUS T. LOTHROP, OF CANTON, OHIO, ASSIGNOR "'lO T HE TIMKEN ROLLER BEARING COMPANY, OF CANTON, OHIO, .A CORPORATION OF OHIO.
, PROCESS OF MAKING OAQES FOR ROLLER BEARINGS.
Application filed November 12, 192$, Serial No. 147,939;
My invention relates to a process of making cages for roller bearings.
A roller bearing cage is usually made of a single piece of thin metal of cylindrical or conical form with pockets therein for the rollers. Heretofore it has been the practice to make such pockets by punching a hole of slightly greater length than the roller and striking'up the sides thereof into the form of wings of suitable width and ourvature to conform to the surface of the roller. Heretofore it has been the practice to punch the pocket hole in the form of the capital letter I, that is, thepunch hole is widened laterally at its ends to provide forthe subsequent operation of pressing up the wings. The result of such practice is to make the wings shorter than the pocket hole and shorter than the roller therein; andin the 2 case of cages made of heavy metal, such shortening of the wings amounts to about one-quarter" of the entire length of the pocket. The purpose of the present invention is'to devise a process which will make the wings of the cage the full length of the pockets or of the rollers therein. Accordingly the invention consists in the process hereinafter described and claimed.
In the accompanying drawing, wherein like reference numerals refer to like parts wherever they occur, I
Fig. 1 is a side view of a conical blank suitable for making a cage for conical roller bearings, a portion of the right side being shown in section.
Fig. 2 is a view of aportion of said blank 1 quadrangular pocket hole punched with a. therein,
Fig. 3 is a view of said portion of the blank with boththe quadrangular pocket hole and smaller holes at the respective corners thereof,
Fig. 4 is a View of said portion with the metal betweenthe pockets and the respective corners of the quadrangular hole severed and the wings struck up, Fig. 5 is a sectional view on of Fig. 4,
- Fig. 6 is a cross-section on the line 6-6 of Fig. 4,
gig. 7 1s a side view of the finished cage; an
Fig. 8 is a'detail view of a portion of a blank punched in accordance with the usual 55 practice heretofore prevailing.
the line 5 5 of the end walls of sai The cage illustrated in the accompanying drawing is designed for use with conical or taper rollers. It comprises a conical shell A, preferablymade in a single piece with a continuous series of pockets B for the rollers. Such shells have been made out of sheet metal and also olit of tubing.
Heretofore, it has been the practice .to punch each pocket with a punch (or punches) of the form of the capital letter I, which produces a punch hole 1 of thesame form, as. shown in Fig. 8. According to the present process, the ends of the main punch are straight and parallel, as hereto-v fore, but the sides extend in straight lines from one of such ends to the other so that the hole 1 punched in the blank C by my punch is of quadrangular form. The sides of such hole 1 are parallel for cylindrical rollers or convergelsomewhat for taper 16 rollers.
Small holes 2, preferably circular, are then punched or drilled through the wall of the cage a slight distance away from the corners of the quadrangular hole 1 made by the main punch, and with the centers of said small holesv substantially in line with the ends of the main hole. This places the small holes 2 in proper position with reference to the lines on which the wings C are to'be struck up, and it also places such small holes with only a small amount of metal intervening hetweenthem and the main punch hole, such intervening metal bein thinnest in the line main hole.
When the cage blank has been provided with the main punch holes 1 and the corner holes 2 therefor, it is submitted to the oper-- ation of striking up the win 0, which operation is performed in an or inary press with formingdies that extend the full length of the wings G. This operation shears the thin wallsof metal that so arate the small corner holes 2 from the main punch hole 1, such shearing being in line with the ends of the main punch ole and thereby making the wings C the full length of such hole.
, The wings of the ca 0 extend the full length of the pockets an being conformed to the rollers, are eifective throughout the entire length of the rollers for the purpose of guiding, spacing .and ositioning the same. The extra length of t e wings of my cage in comparison with previous ca es is of great advantage in various ways. or in- 1 stance, I heendmost portions of the, rollers,
are mos sensitive to the guiding action of the wings, and my wings are enabledfto, cooperate with the rollers closer to their ends than has heretofore been practicable. Again, by reason of their greater length, my wings distribute the wear of both the wings and the rollers to better advantage than previous constructions; and also by reason of the extra length of my wings, they are stronger and more rigid than shorter wings.
Anot er great advantage is that a quadrangular punch is very strong and durable and easy to make whereas the I-shaped punches heretofore used are more expensive and shortlived and liable to break. This last mentioned advantage is of the greatest importance with cages of thick metal, such I for instance,as number sixteen gage.
."While the preceding description assumes that the process begins with a tubular or cages, which consists in providing the bla with holes forthe pockets and with smaller holes near the corners of said pocket holes and striking up wings alon lines that extend alongside said pocket ho esand through said small holes. a 7 V 2'. The process of making roller bearing cages, which consists in providin the blank with holes for the pocket and wlth smaller holes near the corners of said pocket holes and striking upwings alon lines that extend alongside said pocket ho es andthrough Sflid small holes thereby shearing the metal intervening bet-ween the pocket holes and the small holes.
- 3. The process of making roller bearing cages, which consists in providing the blank with quadrangular holes for the. pockets and with smaller holes adjacent thereto and in alinement with the ends of saidpocket holes, and striking up wings alongside of said pocket holes and simultaneously shearing the said small holes. v g
4. The process of making roller bearing cages, which consists in punching quadrangular holes inthe blank, then punching small holes in alinement with the ends of said quadrangular blanks and at a slight distance from the corners thereof, and: then striking up wings alongside of the quadrangular holes along lines that pass throu h the smaller holes and thereby shearing ti intervening metal.
Signed at Canton, Ohio, this'8th day of November, 1926.
MARCUS T. LOTHROP.
' metal between the corners of the pockets and a
US147939A 1926-11-12 1926-11-12 Process of making cages for roller bearings Expired - Lifetime US1645866A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499200A (en) * 1967-02-13 1970-03-10 Federal Mogul Corp Inc Method of making a bearing retainer
US3732605A (en) * 1971-11-03 1973-05-15 H Scheifele Method of making roller bearing cage-and-roller unit
FR2572966A1 (en) * 1984-11-09 1986-05-16 Skf Gmbh METHOD FOR MANUFACTURING A BEARING CAGE AND OBJECT MADE THEREFROM
US20090218457A1 (en) * 2003-09-16 2009-09-03 Shinji Oishi Shell type needle roller bearing, support structure for compressor spindle, and support structure for piston pump driving portion
EP1245846B2 (en) † 2001-03-28 2014-10-22 NTN Corporation Method of manufacturing a tapered roller bearing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499200A (en) * 1967-02-13 1970-03-10 Federal Mogul Corp Inc Method of making a bearing retainer
US3732605A (en) * 1971-11-03 1973-05-15 H Scheifele Method of making roller bearing cage-and-roller unit
FR2572966A1 (en) * 1984-11-09 1986-05-16 Skf Gmbh METHOD FOR MANUFACTURING A BEARING CAGE AND OBJECT MADE THEREFROM
US4689982A (en) * 1984-11-09 1987-09-01 Skf Gmbh Method for making a cage and the cage produced thereby
EP1245846B2 (en) † 2001-03-28 2014-10-22 NTN Corporation Method of manufacturing a tapered roller bearing
US20090218457A1 (en) * 2003-09-16 2009-09-03 Shinji Oishi Shell type needle roller bearing, support structure for compressor spindle, and support structure for piston pump driving portion
US8661686B2 (en) * 2003-09-16 2014-03-04 Ntn Corporation Method of manufacturing a shell type needle roller bearing including drawing and ironing operations

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