FR2251745A1 - High speed ball bearing for gas turbine - has corrected radius of curvature in outer ball track ring - Google Patents

High speed ball bearing for gas turbine - has corrected radius of curvature in outer ball track ring

Info

Publication number
FR2251745A1
FR2251745A1 FR7438308A FR7438308A FR2251745A1 FR 2251745 A1 FR2251745 A1 FR 2251745A1 FR 7438308 A FR7438308 A FR 7438308A FR 7438308 A FR7438308 A FR 7438308A FR 2251745 A1 FR2251745 A1 FR 2251745A1
Authority
FR
France
Prior art keywords
bearing
ball
curvature
high speed
gas turbine
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.)
Withdrawn
Application number
FR7438308A
Other languages
French (fr)
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of FR2251745A1 publication Critical patent/FR2251745A1/en
Withdrawn legal-status Critical Current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
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • F16C2240/76—Osculation, i.e. relation between radii of balls and raceway groove
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines

Landscapes

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

Abstract

The mass forces of the bearing walls increase with the cube of their diameter whilst their load carrying capacity is proportional to the square of the ball diameter. It is thus not possible to overcome the centrifugal force of a large diameter high speed bearing by increasing the bearing ball diameter. To increase the contact area between the ball and the outer track, the raio between the radius of curvature of the ball and that of the central zone of the outer ball track has a value of 1.005. This central zone supports the balls under normal load and running condition. The corresponding curvature ratio for the outer two track zones is 1.008. They support the bearing balls when excessive loads are applied to the bearing.
FR7438308A 1973-11-15 1974-11-21 High speed ball bearing for gas turbine - has corrected radius of curvature in outer ball track ring Withdrawn FR2251745A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5298673 1973-11-15

Publications (1)

Publication Number Publication Date
FR2251745A1 true FR2251745A1 (en) 1975-06-13

Family

ID=10466164

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438308A Withdrawn FR2251745A1 (en) 1973-11-15 1974-11-21 High speed ball bearing for gas turbine - has corrected radius of curvature in outer ball track ring

Country Status (4)

Country Link
JP (1) JPS5082451A (en)
DE (1) DE2454079A1 (en)
FR (1) FR2251745A1 (en)
IT (1) IT1025761B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367217A1 (en) * 1976-10-07 1978-05-05 Mueller Georg Kugellager BALL BEARINGS FOR RADIAL LOAD, OBLIQUE CONTACT FOR RADIAL LOAD AND OBLIQUE CONTACT FOR AXIAL LOAD
EP1111256A1 (en) * 1999-12-20 2001-06-27 Hihaisuto Seiko Co Ltd Linear Bearing
WO2013075953A1 (en) * 2011-11-23 2013-05-30 Schaeffler Technologies AG & Co. KG Rolling bearing

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504251A1 (en) * 1985-02-08 1986-08-14 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Races for ball bearings
JPS61286608A (en) * 1985-06-12 1986-12-17 Nippon Thompson Co Ltd Raceway groove of ball bearing for rectilinear motion
DE19708255B4 (en) * 1996-03-15 2004-04-08 Liebherr-France S.A. Bearing point for an impeller
JP3661371B2 (en) * 1997-10-31 2005-06-15 日本精工株式会社 Power roller bearing for toroidal type continuously variable transmission
WO2000037813A1 (en) * 1998-12-22 2000-06-29 Nsk Ltd. Ball bearing
JP2000240663A (en) 1998-12-24 2000-09-05 Nsk Ltd Ball bearing
JP2001208081A (en) * 2000-01-31 2001-08-03 Nsk Ltd Single row deep groove radial ball bearing
DE10057861A1 (en) 2000-11-21 2002-05-23 Mkl Miniaturkugellager Gmbh Ball bearing for high speed devices has at least one device to produce RPM-dependent clamping force for bracing of bearing and comprises at least a part of balls of bearing
DE102006015296B4 (en) * 2006-04-01 2012-10-18 Schaeffler Kg Angular contact ball bearings, in particular multi-row wheel bearings for the suspension of a motor vehicle
DE102013204325B4 (en) * 2013-03-13 2018-01-04 Aktiebolaget Skf roller bearing
JP2016020735A (en) * 2014-06-19 2016-02-04 日本精工株式会社 Linear guide device
DE102015012332B4 (en) * 2015-09-22 2022-09-08 Gebrüder Reinfurt GmbH & Co. KG Ball bearing design with tilt compensation
WO2018055687A1 (en) 2016-09-21 2018-03-29 新日鐵住金株式会社 Steel plate
CN106640947B (en) * 2016-12-27 2019-03-22 洛阳轴承研究所有限公司 A kind of angular contact ball bearing and its design method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367217A1 (en) * 1976-10-07 1978-05-05 Mueller Georg Kugellager BALL BEARINGS FOR RADIAL LOAD, OBLIQUE CONTACT FOR RADIAL LOAD AND OBLIQUE CONTACT FOR AXIAL LOAD
EP1111256A1 (en) * 1999-12-20 2001-06-27 Hihaisuto Seiko Co Ltd Linear Bearing
WO2013075953A1 (en) * 2011-11-23 2013-05-30 Schaeffler Technologies AG & Co. KG Rolling bearing
CN103946566A (en) * 2011-11-23 2014-07-23 舍弗勒技术有限两合公司 Rolling bearing

Also Published As

Publication number Publication date
IT1025761B (en) 1978-08-30
DE2454079A1 (en) 1975-05-22
JPS5082451A (en) 1975-07-03

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Legal Events

Date Code Title Description
ST Notification of lapse