WO2001031214A1 - Cage de roulement a billes - Google Patents

Cage de roulement a billes Download PDF

Info

Publication number
WO2001031214A1
WO2001031214A1 PCT/EP2000/006392 EP0006392W WO0131214A1 WO 2001031214 A1 WO2001031214 A1 WO 2001031214A1 EP 0006392 W EP0006392 W EP 0006392W WO 0131214 A1 WO0131214 A1 WO 0131214A1
Authority
WO
WIPO (PCT)
Prior art keywords
cage
ball
bearing
pocket
spring elements
Prior art date
Application number
PCT/EP2000/006392
Other languages
German (de)
English (en)
Inventor
Leo Müntnich
Herbert Zettner
Jörg Wagner
Original Assignee
Ina-Schaeffler Kg
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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Priority to DE10083269T priority Critical patent/DE10083269B4/de
Publication of WO2001031214A1 publication Critical patent/WO2001031214A1/fr

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
    • F16C33/38—Ball cages
    • F16C33/41—Ball cages comb-shaped
    • 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
    • F16C33/38—Ball cages
    • 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
    • F16C33/38—Ball cages
    • F16C33/3831—Ball cages with hybrid structure, i.e. with parts made of distinct materials
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load

Definitions

  • the invention relates to a ball bearing cage made of an elastically deformable plastic with spherical spherical seat surfaces arranged in pockets, the bearing balls being separated from one another in the circumferential direction by separating elements pointing in the direction of the bearing axis and means for compensating for changes in length of the cage which are caused by different rolling speeds of the bearing balls ,
  • the invention is therefore based on the object of developing a cage of the type mentioned, in which the forces acting on the cage due to different rolling speeds of the bearing balls are absorbed in a modified manner.
  • this object is achieved according to the characterizing part of claim 1 in that the bearing balls are held in a pocket adapted to the change in length with increased pocket play by means of two mutually opposed spring elements in the center of the spherical spherical seat surfaces in both circumferential directions.
  • the advantage of the solution according to the invention is in particular that the forces arising from the different rolling speeds of the bearing balls are not intercepted by the cage or its webs, but by the spring elements arranged inside the pockets. In this way, the entire cage is not subjected to tension or compression, since the spring elements compensate for this within the pockets and the cage itself remains unloaded.
  • the spring elements can be arranged above, below or in the region of the pitch circle.
  • the type of mounting of the bearing balls proposed according to the invention can in principle be used for all types of cages via spring elements in the pockets.
  • the cage is designed as a snap cage, projections are arranged from a ring evenly spaced apart in the circumferential direction, projecting in the axial direction, so that the spherical seat surface is formed by the projections and the ring and the bearing ball in the pocket is held in the middle by the opposing spring elements, which are molded onto an adjacent projection.
  • the snap cage described in claim 6 differs from that in claim 5 only in that the spring element is designed as a cross-sectionally U-shaped spring, which is placed as a separate component on the projections, according to claim 7 this U-shaped spring should be made of a metallic material.
  • the cage is designed as a window cage, the separating elements being designed as webs which connect two side rings of different sizes so that the spherical ball seat surface is formed by the side rings and the webs and the bearing ball in the pocket is held in the middle by the opposing spring elements which are formed on the side ring with the larger or with the smaller radial recess.
  • the cage is designed as a meandering cage, the separating elements being designed as webs, so that the spherical ball seat surface is formed by the webs and a section connecting these in the circumferential direction, and the bearing ball is centered in the pocket is held by the opposing spring elements which are integrally formed on the webs.
  • FIGS. 1, 3, 5 and 7 show a top view of differently designed roller bearing cages according to the invention
  • FIGS. 2, 4 and 6 the respective cross section
  • FIG. 8 shows the longitudinal section belonging to FIG. 7.
  • the plastic cage produced with an injection mold according to FIGS. 1 and 2 is designed as a snap cage 1 and has the ring 2, which is provided in the circumferential direction with projections 3 which are uniformly spaced apart and which extend in the axial direction.
  • the pockets 4 with the spherical spherical seat surface 5 are formed by the ring 2 and the projections 3.
  • Bearing balls 6 are accommodated in the pockets 4 with the spherical seating surfaces 5, the pocket 4 having a width B in the circumferential direction which is larger than the diameter of the bearing ball 6, ie has an enlarged pocket play.
  • the width B ie the distance from the left-hand to the right-hand ball seat surface, is to be selected as a function of the bearing geometry and the different rolling speeds of the bearing balls 6 so that, depending on the lead or trailing, either on the left-hand side or on the right-hand side at the maximum on the spherical ball seat surfaces 5 of the projections 3 concerns.
  • spring elements 7 are formed on the projections 3 in the region of the pitch circle, which spring elements 7 encompass the bearing ball 6 from two sides. In the neutral position, ie in the middle position, the bearing ball 6 is held at a distance from the ball seat surfaces 5 of the projections 3 by the spring elements 7.
  • the bearing balls 6 are now deflected to one or the other side in the load zone, they lie with their lateral surface on the spherical seat surface 5 of the right or left projection 3.
  • the spring element 7 brings the bearing ball 6 back into its central position, ie it is held in the middle of the pocket 4 at a distance from its spherical ball seating surfaces 5. In this way, the change in length of the cage required by the prior art is not compensated for by webs or other cage parts, but within the cage pocket 4.
  • the snap cage 1 shown in FIGS. 3 and 4 differs from that according to FIGS. 1 and 2 only in that the spring action of the bearing balls 6 is effected by a spring 8, which is U-shaped in cross section and as a separate component on the Projections 3 of the snap cage 1 is placed.
  • the meandering cage 9 shown in FIGS. 5 and 6 also has pockets 4 with their spherical seat surfaces 5.
  • the pockets 4 are in turn larger than the diameter of the bearing ball 6, d. H. they have an enlarged pocket play and are formed by two spaced apart webs 10 which run in the axial direction and a section 11 connecting them. Outside the pitch circle region, the bearing balls 6 in the pocket 4 are again held in the center position at a distance from the spherical ball seat surfaces 5 by spring elements 12.
  • FIGS. 7 and 8 show a window cage 13 for an angular contact ball bearing, which consists of the two side rings 14 and 15, each of which has a different radial extent and is connected to one another by webs 16.
  • two spring elements 17 are formed, which in turn comprise the bearing balls 6 from two circumferential directions, so that the bearing balls 6 in the pockets 4 are again held at a distance from the spherical spherical seat surfaces 5 in the central position.

Landscapes

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

Abstract

L'invention concerne une cage de roulement à billes qui est constituée d'une matière synthétique élastiquement déformable, qui comprend des surfaces d'appui de billes (5) sphériques placées dans des poches. Cette cage se caractérise en ce que les billes de roulement (6) sont maintenues, dans une poche (4) s'adaptant au changement de longueur, présentant un jeu augmenté, par l'intermédiaire de deux éléments élastiques (7, 8, 12, 17) agissant dans des directions opposées, au centre de ladite poche, dans les deux sens périphériques, à une certaine distance des surfaces d'appui de billes (5) sphériques. Grâce à la configuration de la cage selon l'invention, les modifications de longueur dues aux différentes conditions de roulement des billes de roulement (6) sont compensées à l'intérieur de la poche (4).
PCT/EP2000/006392 1999-10-26 2000-07-06 Cage de roulement a billes WO2001031214A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10083269T DE10083269B4 (de) 1999-10-26 2000-07-06 Kugellagerkäfig

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19951387.2 1999-10-26
DE19951387A DE19951387A1 (de) 1999-10-26 1999-10-26 Kugellagerkäfig

Publications (1)

Publication Number Publication Date
WO2001031214A1 true WO2001031214A1 (fr) 2001-05-03

Family

ID=7926818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/006392 WO2001031214A1 (fr) 1999-10-26 2000-07-06 Cage de roulement a billes

Country Status (2)

Country Link
DE (2) DE19951387A1 (fr)
WO (1) WO2001031214A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008060760A1 (de) 2008-12-05 2010-06-10 Schaeffler Kg Kugelkäfig für Radialrillen- oder Schrägkugellager

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4071212B2 (ja) * 2003-10-16 2008-04-02 上銀科技股▲分▼有限公司 転がり素子案内モジュール
DE102005020782A1 (de) * 2005-05-04 2006-11-09 Schaeffler Kg Wälzlager
DE102012212056A1 (de) * 2012-07-11 2014-01-16 Schaeffler Technologies AG & Co. KG Käfig für Schrägkugellager
DE102014202791A1 (de) * 2014-02-17 2015-08-20 Schaeffler Technologies AG & Co. KG Langlebiger Wälzkörperkäfig für Kugelrollenlager
DE102016124430A1 (de) 2016-12-15 2018-06-21 Schaeffler Technologies AG & Co. KG Wälzlagerkäfig
DE102022100737A1 (de) 2021-03-02 2022-09-08 Hanon Systems Kugellager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193058A2 (fr) * 1985-03-01 1986-09-03 RIV-SKF OFFICINE DI VILLAR PEROSA S.p.A Cage à billes
DE3706013A1 (de) 1987-02-25 1988-09-08 Skf Gmbh Kaefig fuer kugellager, insbesondere fuer schraegkugellager
US4998605A (en) * 1990-02-12 1991-03-12 Ferris Ernest A Plastic cage for a one-way clutch
EP0890755A2 (fr) * 1997-07-01 1999-01-13 Thk Co. Ltd. Chaíne d'éléments de roulement et dispositif de guidage linéaire ainsi que dispositif fileté à éléments de roulement utilisant cette chaíne

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE187481C (fr) * 1900-01-01
DE284133C (fr) * 1900-01-01
DE212007C (fr) * 1900-01-01
US1051911A (en) * 1912-02-10 1913-02-04 Leo Pondelick Retainer for ball-bearings.
US2061999A (en) * 1935-04-16 1936-11-24 Arma Engineering Co Inc Antifriction bearing
DE1209667B (de) * 1961-07-05 1966-01-27 Giulio Pasqualigo Waelzlager fuer Drehanoden von Roentgenroehren
NL1008649C2 (nl) * 1998-03-20 1999-09-21 Skf Eng & Res Centre Bv Kooi voor een kogellager.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193058A2 (fr) * 1985-03-01 1986-09-03 RIV-SKF OFFICINE DI VILLAR PEROSA S.p.A Cage à billes
DE3706013A1 (de) 1987-02-25 1988-09-08 Skf Gmbh Kaefig fuer kugellager, insbesondere fuer schraegkugellager
US4998605A (en) * 1990-02-12 1991-03-12 Ferris Ernest A Plastic cage for a one-way clutch
EP0890755A2 (fr) * 1997-07-01 1999-01-13 Thk Co. Ltd. Chaíne d'éléments de roulement et dispositif de guidage linéaire ainsi que dispositif fileté à éléments de roulement utilisant cette chaíne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008060760A1 (de) 2008-12-05 2010-06-10 Schaeffler Kg Kugelkäfig für Radialrillen- oder Schrägkugellager

Also Published As

Publication number Publication date
DE10083269B4 (de) 2009-12-03
DE19951387A1 (de) 2001-05-03
DE10083269D2 (de) 2004-07-08

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