CH148843A - Roller bearings. - Google Patents

Roller bearings.

Info

Publication number
CH148843A
CH148843A CH148843DA CH148843A CH 148843 A CH148843 A CH 148843A CH 148843D A CH148843D A CH 148843DA CH 148843 A CH148843 A CH 148843A
Authority
CH
Switzerland
Prior art keywords
sep
rings
rollers
steel
roller bearings
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Fried Krupp
Original Assignee
Krupp Ag
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 Krupp Ag filed Critical Krupp Ag
Publication of CH148843A publication Critical patent/CH148843A/en

Links

Classifications

    • 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
    • F16C33/62—Selection of substances

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

  

  Rollenlager.    Zur Herstellung von Rollenlagern ver  wendet man bisher Rollen und Ringe aus  hochkohlenstoffhaltigem Chromstahl oder ein  satzgehärtetem Stahl. Die Rollen und Ringe  aus einsatzgehärteten Stahlen haben im Kern  durchweg einen     Kohlenstoffgehalt    von etwa  0,15 bis 0,2     01/0.    Sie halten infolge ihrer  geringen Kernfestigkeit nur niedrigen Drucken  stand. Die     Chromstahlrollen    und     Ohromstahl-          ringe    haben den Nachteil, dass die äussere  Schicht vielfach zum Abblättern oder Ab  platzen neigt.

   Diese Nachteile werden der  Erfindung gemäss dadurch vermieden, dass  man zur Herstellung der Rollen und Ringe  von Rollenlagern Chromstahl verwendet, dem       mehr        als        1%        Nickel        zugesetzt        ist.        Die        Züz-          sammensetzung    dieses Chromstahls kann sich  etwa in folgenden Grenzen bewegen;

   0,45       bis        1,2%        C,        0,5        bis        2"/o        Cr,    1     bis        5%        Ni.     Sehr gute Ergebnisse wurden zum Beispiel  erreicht, bei     Verwendung    von Stahlen, die       0,75        %        C,        1,

  5        %        Cr        und    2     %        Ni        oder        0,5        %        C,          1,3        %        Cr,        4,5        %        Ni,        0,9        %        W        und        0,1%        Va     enthalten.

      Um die     Verschleissfestigkeit    der Ringe  und Rollen zu erhöhen, können diese im Ein  satz gehärtet werden. Diese Rollen und  Ringe haben gegenüber den bisher verwen  deten einsatzgehärteten den Vorteil, dass sie  infolge ihrer grossen     Kernfestigkeit    hohen  Drucken standhalten und nicht zum Ab  platzen neigen.  



  An dem Wesen der Erfindung wird nichts  geändert durch den Zusatz, von die Festig  keit verbessernden     üblichen    Legierungs  komponenten.



  Roller bearings. So far, rollers and rings made of high-carbon chrome steel or a case-hardened steel have been used to manufacture roller bearings. The core of the rollers and rings made of case-hardened steel consistently have a carbon content of about 0.15 to 0.2 01/0. Due to their low core strength, they can only withstand low pressures. The chrome steel rollers and earring steel rings have the disadvantage that the outer layer often tends to flake or peel off.

   According to the invention, these disadvantages are avoided by using chromium steel to which more than 1% nickel is added to manufacture the rollers and rings of roller bearings. The additional composition of this chrome steel can move approximately within the following limits;

   0.45 to 1.2% C, 0.5 to 2 "/ o Cr, 1 to 5% Ni. Very good results have been achieved, for example, when using steels containing 0.75% C, 1,

  Contains 5% Cr and 2% Ni or 0.5% C, 1.3% Cr, 4.5% Ni, 0.9% W and 0.1% Va.

      In order to increase the wear resistance of the rings and rollers, they can be hardened in use. These rollers and rings have the advantage over the case-hardened ones previously used that, due to their high core strength, they withstand high pressures and do not tend to burst.



  The essence of the invention is not changed by the addition of customary alloy components that improve strength.

Claims (1)

PATENTANSPRUCH: Rollenlager, dadurch gekennzeichnet; dass Rollen und Ringe aus Chromstahl bestehen, dem mehr als 1 % Nickel zugesetzt ist. UNTERANSPRTJCHE 1. PATENT CLAIM: Roller bearing, characterized; that rollers and rings are made of chrome steel to which more than 1% nickel is added. SUBClaims 1. Rollenlager nach Patentanspruch, dadurch gekennzeichnet, dass Rollen und Ringe aus einem Stahl bestehen, der 0,45 bis 1,2% C, 0,5 bis 9-% Cr und 1 bis 50/0 Ni enthält. 2. Rollenlager nach Patentanspruch und Unteranspruch 1, dadurch gekennzeichnet, dass Rollen und Ringe aus einem Stahl bestehen, der etwa 0,75'/o C, 1,50/0 0r und 2/o Ni enthält. 3. Roller bearing according to claim, characterized in that rollers and rings consist of a steel which contains 0.45 to 1.2% C, 0.5 to 9% Cr and 1 to 50/0 Ni. 2. Roller bearing according to claim and dependent claim 1, characterized in that rollers and rings are made of a steel which contains about 0.75 '/ o C, 1.50 / 0 0r and 2 / o Ni. 3. Rollenlager nach Patentanspruch und Unteranspruch 1, dadurch gekennzeichnet, dass Rollen und Ringe aus einem Stahl EMI0002.0005 bestehen, <SEP> der <SEP> etwa <SEP> <B>0,50/0</B> <SEP> C, <SEP> <B>1,3"/o</B> <SEP> Cr, <tb> 4,5 <SEP> % <SEP> Ni, <SEP> 0,9 <SEP> % <SEP> W <SEP> und <SEP> 0,1% <SEP> Va <SEP> enthält. <tb> 4. <SEP> Rollenlager <SEP> nach <SEP> Patentanspruch, <SEP> dadurch <tb> gekennzeichnet, <SEP> dass <SEP> Rollen <SEP> und <SEP> Ringe <tb> einsatzgehärtet <SEP> sind. Roller bearing according to claim and dependent claim 1, characterized in that rollers and rings are made of a steel EMI0002.0005 exist, <SEP> the <SEP> about <SEP> <B> 0.50 / 0 </B> <SEP> C, <SEP> <B> 1.3 "/ o </B> <SEP> Cr , <tb> 4.5 <SEP>% <SEP> Ni, <SEP> 0.9 <SEP>% <SEP> W <SEP> and <SEP> 0.1% <SEP> Va <SEP>. <tb> 4. <SEP> roller bearing <SEP> according to <SEP> patent claim, <SEP> thereby <tb> marked, <SEP> that <SEP> roles <SEP> and <SEP> rings <tb> are case-hardened <SEP>.
CH148843D 1929-07-08 1930-06-30 Roller bearings. CH148843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350752X 1929-07-08

Publications (1)

Publication Number Publication Date
CH148843A true CH148843A (en) 1931-08-15

Family

ID=6264095

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148843D CH148843A (en) 1929-07-08 1930-06-30 Roller bearings.

Country Status (2)

Country Link
CH (1) CH148843A (en)
GB (1) GB350752A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038586B (en) * 1953-09-01 1958-09-11 Bochumer Ver Fuer Gussstahlfab Chrome-nickel alloy steels for case hardening with high core hardness
US3298827A (en) * 1963-09-13 1967-01-17 Timken Roiler Bearing Company Air hardening bearing steel and bearings made therefrom
US4911885A (en) * 1988-04-04 1990-03-27 Koyo Seiko Co., Ltd. High carbon chromium bearing steel
JP3646467B2 (en) * 1996-07-31 2005-05-11 日本精工株式会社 Rolling bearing

Also Published As

Publication number Publication date
GB350752A (en) 1931-06-18

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