DE578433C - Ball bearings in a vacuum - Google Patents

Ball bearings in a vacuum

Info

Publication number
DE578433C
DE578433C DES105100D DES0105100D DE578433C DE 578433 C DE578433 C DE 578433C DE S105100 D DES105100 D DE S105100D DE S0105100 D DES0105100 D DE S0105100D DE 578433 C DE578433 C DE 578433C
Authority
DE
Germany
Prior art keywords
vacuum
ball bearings
ball
graphite
tungsten
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
Application number
DES105100D
Other languages
German (de)
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.)
Siemens Reiniger Werke AG
Original Assignee
Siemens Reiniger Werke 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 Siemens Reiniger Werke AG filed Critical Siemens Reiniger Werke AG
Priority to DES105100D priority Critical patent/DE578433C/en
Application granted granted Critical
Publication of DE578433C publication Critical patent/DE578433C/en
Expired legal-status Critical Current

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
    • H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
    • H01J35/1017—Bearings for rotating anodes
    • H01J35/1024—Rolling bearings
    • 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
    • F16C33/32—Balls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/10—Drive means for anode (target) substrate
    • H01J2235/1046—Bearings and bearing contact surfaces
    • H01J2235/1053—Retainers or races

Landscapes

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

Description

Zur Lagerung von beweglichen Teilen im Vakuum, z. B. rotierenden Antikathoden in Röntgenröhren, wurden bisher nur Gleitlager verwendet, während man Kugellager für unbrauchbar hielt, da eine Öl- oder Fettschmierung, die bei Kugellagern unerläßlich erschien, im Vakuum nicht in Frage kommt. Gemäß der Erfindung finden in Vakuumröhren Kugellager Verwendung, deren Lagerschalen und Kugeln aus Wolfram oder Molybdän bestehen. Solche Kugellager sind, wie Versuche ergeben haben, ohne Öl- oder Fettschmierung brauchbar. Besonders gut bewähren sich Kugellager mit Lagerschalen aus Wolfram und Kugeln aus Molybdän. Diese Metalle haben außerdem noch den Vorteil, daß. sich ihre Eigenschaften durch die beim Herstellungsprozeß in Vakuumröhren notwendige Erhitzung der Metallteile nicht merklieh ändern.For storing moving parts in a vacuum, e.g. B. rotating anticathodes in X-ray tubes were previously only used for plain bearings, while ball bearings were considered unusable held because oil or grease lubrication, which appeared to be indispensable for ball bearings, is out of the question in a vacuum. According to the invention, ball bearings are used in vacuum tubes, their bearing shells and balls are made of tungsten or molybdenum. Such ball bearings are, as tests have shown, without oil or Grease lubrication useful. Ball bearings with bearing shells have proven themselves particularly well Tungsten and molybdenum balls. These metals also have the advantage that. their properties through the Manufacturing process in vacuum tubes does not require heating of the metal parts change.

Eine weitere Verbesserung des Gegenstandes der Erfindung besteht darin, für den Kugelkäfig einen im Vakuum gut gleitfähigen Stoff zu verwenden. Als im Vakuum gut gleitfähig haben sich Silber, Silberlegierungen, Graphit oder Graphit enthaltende Metalle, beispielsweise Gemenge aus Kupfer und Graphit, bewährt.Another improvement of the object of the invention is for the Ball cage to use a material that slides well in a vacuum. Than good in vacuum Silver, silver alloys, graphite or metals containing graphite have proven to be slippery, for example, a mixture of copper and graphite, has proven its worth.

Claims (3)

Patentansprüche:Patent claims: 1. Kugellager für bewegliche Teile im Vakuum, gekennzeichnet durch Lagerschalen und' Kugeln aus Wolfram oder Molybdän. ·1. Ball bearings for moving parts in a vacuum, characterized by bearing shells and 'balls made of tungsten or molybdenum. · 2. Kugellager nach Anspruch i, gekennzeichnet durch Lagerschalen aus Wolfram und Kugeln aus 'Molybdän.2. Ball bearing according to claim i, characterized by bearing shells made of tungsten and balls of 'molybdenum. 3. Kugellager nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kugelkäfig aus einem im Vakuum gut gleitfähigen Stoff, insbesondere Silber oder Graphit, oder einem Silber oder Graphit oder beide enthaltenden Stoff besteht.3. Ball bearing according to claim 1 or 2, characterized in that the ball cage made of a material that slides well in a vacuum, in particular silver or graphite, or a silver or graphite or both containing substance.
DES105100D 1932-06-23 1932-06-23 Ball bearings in a vacuum Expired DE578433C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES105100D DE578433C (en) 1932-06-23 1932-06-23 Ball bearings in a vacuum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES105100D DE578433C (en) 1932-06-23 1932-06-23 Ball bearings in a vacuum

Publications (1)

Publication Number Publication Date
DE578433C true DE578433C (en) 1933-06-14

Family

ID=7526314

Family Applications (1)

Application Number Title Priority Date Filing Date
DES105100D Expired DE578433C (en) 1932-06-23 1932-06-23 Ball bearings in a vacuum

Country Status (1)

Country Link
DE (1) DE578433C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423880A (en) * 1939-03-09 1947-07-15 Hartford Nat Bank & Trust Co Method of making ball bearings
DE950254C (en) * 1948-12-30 1956-10-04 Cie Generale De Radiologie Sa Method and device for covering ball bearings intended for working in a room with a high vacuum, in particular in electron tubes, with a thin metallic coating that has a lubricating effect
DE102006024603A1 (en) * 2006-05-26 2007-11-29 Schaeffler Kg Heavy-duty anti-friction bearing (AFB), e.g. for arrangements of main-shaft bearings in high-rev gas turbines, gearboxes and arrangements of rotor bearings in helicopters, has an AFB ring
DE102007058104A1 (en) * 2007-12-03 2009-06-10 Siemens Ag Beam insertion unit, beam generating device and tomography device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423880A (en) * 1939-03-09 1947-07-15 Hartford Nat Bank & Trust Co Method of making ball bearings
DE950254C (en) * 1948-12-30 1956-10-04 Cie Generale De Radiologie Sa Method and device for covering ball bearings intended for working in a room with a high vacuum, in particular in electron tubes, with a thin metallic coating that has a lubricating effect
DE102006024603A1 (en) * 2006-05-26 2007-11-29 Schaeffler Kg Heavy-duty anti-friction bearing (AFB), e.g. for arrangements of main-shaft bearings in high-rev gas turbines, gearboxes and arrangements of rotor bearings in helicopters, has an AFB ring
DE102007058104A1 (en) * 2007-12-03 2009-06-10 Siemens Ag Beam insertion unit, beam generating device and tomography device

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