EP1794006A1 - Ensemble palier de pedalier ou palier de moyeu - Google Patents

Ensemble palier de pedalier ou palier de moyeu

Info

Publication number
EP1794006A1
EP1794006A1 EP05792265A EP05792265A EP1794006A1 EP 1794006 A1 EP1794006 A1 EP 1794006A1 EP 05792265 A EP05792265 A EP 05792265A EP 05792265 A EP05792265 A EP 05792265A EP 1794006 A1 EP1794006 A1 EP 1794006A1
Authority
EP
European Patent Office
Prior art keywords
bearing
arrangement according
inner ring
bearing arrangement
raceways
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Withdrawn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
EP05792265A
Other languages
German (de)
English (en)
Inventor
Jesko-Henning Tanke
Bettina Stoyke
Bernd MÜSING
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP1794006A1 publication Critical patent/EP1794006A1/fr
Withdrawn legal-status Critical Current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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/001—Hubs with roller-bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0073—Hubs characterised by sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/003—Combination of crank axles and bearings housed in the bottom bracket
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/28—Bicycle propulsion, e.g. crankshaft and its support
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2164—Cranks and pedals

Definitions

  • the invention relates to a bottom bracket or wheel hub bearing assembly for a bicycle having two axially spaced rolling bearings, which can be arranged in a bottom bracket or wheel bearing housing of the bicycle, each roller bearing having an inner ring with a raceway for the rolling elements and an outer ring with a raceway for the rolling elements and wherein the rolling elements are arranged between their respective raceways of the inner ring or outer ring.
  • US 6,095,691 provides that the one bearing is designed as a double-row deep groove ball bearings, while for the other bearing a needle bearing is provided.
  • a single-row deep groove ball bearing for the one bearing and a needle bearing for the other bearing is proposed in the bearing assembly, which is known from WO 98/03391 or from DE 90 10 055 Ul.
  • DE 94 19 150 Ul such a solution is used, in which case a tube with a relatively large diameter is used here as an axis in the region between the bearing points, which has a bore which is substantially larger than in the region of the lateral fastening elements.
  • the invention is therefore based on the object to form a bearing arrangement of the type mentioned so on that the disadvantages listed are overcome. It should therefore be ensured that large bearing forces can be absorbed with high precision and low friction torque of the storage, the assembly effort when installing the storage in the bike should remain as low as possible.
  • the solu tion of this object by the invention is characterized in that both the inner ring and the outer ring of both rolling bearings are formed as one-piece components, wherein the outer ring is designed as a tubular member and wherein the one roller bearing as a ball bearing and the other roller bearing as a cylindrical roller bearing is trained.
  • the inner ring of both rolling bearings is designed as a tubular component.
  • the ball bearing is preferably a deep groove ball bearing.
  • the bearing provided with the ball bearing can be designed as a fixed bearing; Furthermore, the provided with the cylindrical roller bearing bearing can be designed as a floating bearing.
  • roller bearing in addition to the ball bearing another roller bearing, in particular a cylindrical roller bearing is arranged.
  • the inner ring designed as a tube can have in its two axial end areas connecting elements for positive engagement with one pedal crank in each case.
  • the connection elements can be splined profiles or tooth profiles.
  • the cylindrical roller bearing is arranged here.
  • the inner ring is formed from a tube having a constant over its entire axial extent bore diameter.
  • the inner ring is formed from a tube which has a smaller Bohrungs ⁇ diameter in its axial end than in its central region.
  • the smaller bore diameter can amount to a maximum of 60%, preferably at most half, of the bore diameter in the middle region.
  • the axial end portions with a smaller bore diameter can extend over more than 25% of the total axial length of the inner ring, wherein a symmetrical configuration of the inner ring can be provided. Then, the larger diameter thus extends at least over 50% of the axial extent of the inner ring in the central region of the ring.
  • the inner ring between the two raceways has a reduced wall thickness and / or a reduced outer diameter in relation to the wall thickness or the outer diameter at the location of the raceways.
  • the inner ring axially outside of the two raceways have a reduced wall thickness and / or a reduced outer diameter in relation to the wall thickness or the outer diameter at the location of the raceways.
  • the outer ring between the two raceways has a reduced in relation to the wall thickness or the outer diameter at the location of the raceways wall thickness and / or a reduced outer diameter.
  • the cylindrical rollers are arranged with axial play on their career in the outer ring.
  • the axial play can be between 0, 1 and 0.3 mm.
  • the axial air of the bearing is defined solely by the equipped with the ball bearing bearing. Axial tension in the bearing are prevented by a non-successful employment of the bearings.
  • 1 is a bottom bracket assembly of a bicycle in the side view, shown in half-section,
  • Fig. 2 shows an alternative embodiment of the bottom bracket assembly of FIG. 1, shown uncut, and
  • FIG. 3 shows the illustration of FIG. 2, shown in section.
  • the bottom bracket assembly 1 shown in FIG. 1 is designed as a compact unit. It has two bearings, which are formed on one side as a rolling bearing 2 in the form of a deep groove ball bearing and on the other side as a rolling bearing 3 in the form of a cylindrical roller bearing.
  • the two bearings 2, 3 have both a common inner ring 4 and a common outer ring 9. Both bearing rings 4, 9 are rohrformig.
  • the inner ring 4 is designed as a pipe with a bore diameter D B ; on the outer circumference of the inner ring 4, the two raceways 5 (for the deep groove ball bearings) and 6 (for the cylindrical roller bearing) are ground.
  • the outer ring 9 designed as a tube has in its inner bore region the ground raceways 10 (for the deep groove ball bearing) and 11 (for the cylindrical roller bearing).
  • raceways 5 and 10 rolling elements 7 are positioned in the form of balls, between the raceways 6 and 11 rolling elements 8 in the form of cylindrical rollers.
  • Cages 15 for the deep groove ball bearing 2 and 16 (for the cylindrical roller bearing 3) are provided in the usual way.
  • the rohrformig trained inner ring 4 also has in its axial end portions connecting elements 12 and 13, which are designed for positive connection with cranks.
  • the sprocket is mounted in the installed state of the bearing assembly. Because higher forces are introduced into the bearing assembly at this point, the cylindrical roller bearing 3 is provided here.
  • the inner ring 4 and the outer ring 9 are designed as follows:
  • the tubular rings 4, 9 have in the region of the bearing points, ie where the raceways 5, 6, 10, 11 are ground, a thickened in relation to the other pipe run point.
  • the wall thickness du, of the tubular inner ring 4 in the region of the raceway 5 or 6 is therefore greater than the wall thickness dj, which the inner ring 4 otherwise has. This applies both between the bearings as well as axially outside of the bearing points in the direction of the connection elements 12, 13 out.
  • tubular outer ring 9 corresponds or analogous applies to tubular outer ring 9:
  • the wall thickness d AL of the outer ring 9 is greater in the region of the raceway 10 or 11 than the wall thickness d A , the outer ring 9 otherwise. Furthermore, the outer diameter of the outer ring 9 in the region of the raceways 10, 11 with the registered value D AL is greater than the outer diameter in the region between the raceways or bearing points, which is indicated by D Aa .
  • This maximum rigidity of the bearing assembly 1 is achieved with a given material use.
  • a clearance s for the cylindrical rollers 8 is provided which is between 0.1 and 0.3 mm, preferably about 0.2 mm.
  • the cylindrical rollers 8 can thus move in the axial direction in the context of the game s; axial forces are thus not transmitted by the cylindrical roller bearing.
  • the embodiment of the bottom bracket or wheel hub bearing arrangement 1 according to FIG. 2 and FIG. 3 differs from the embodiment according to FIG. 1, inter alia in that the bore diameter D B is not constant over the axial extent of the inner ring 4, but clearly in the axial end areas smaller than in the middle area.
  • the inner ring 4 also consists of a tube.
  • the smaller bore diameter D B in at least one axial end region-preferably in both axial end regions-amounts to a maximum of 60%, preferably a maximum of 50%, of the bore diameter D B in the center region.
  • the axial end portions with a smaller bore diameter D B thereby extend a maximum of over 25% of the total axial length of the inner ring 4.
  • a symmetrical configuration of the inner ring 4 is provided in the exemplary embodiment.
  • the larger diameter D B extends at least over 50% of the axial extent of the inner ring 4 in the central region of the ring.
  • the inner ring 4 between the two raceways 5, 6 has a reduced wall thickness and / or a reduced outer diameter in relation to the wall thickness or the outer diameter at the location of the raceways.
  • the wall thickness d Iax of the tubular inner ring 4 in the two axial end portions is considerably greater than the wall thickness d ⁇ in the middle region of the inner ring 4.
  • the wall thickness Iax is in the axial end region preferably at least twice the value in the central region - with simultaneously reduced outer diameter Dj 3 in the axial End. This makes a particularly stable construction possible.
  • Connection element (splined profile, tooth profile)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

L'invention concerne un ensemble palier de pédalier ou palier de moyeu (1) pour une bicyclette. L'ensemble selon l'invention comprend deux paliers à roulement (2, 3) écartés axialement l'un de l'autre et pouvant être placés dans un logement de palier de pédalier ou de palier de roue de la bicyclette. Chaque palier à roulement (2, 3) comprend une bague intérieure (4) ayant un chemin de roulement (5, 6) pour les corps de roulement (7, 8), ainsi qu'une bague extérieure (9) ayant un chemin de roulement (10, 11) pour les corps de roulement (7, 8), les corps de roulement (7, 8) étant placés entre leurs chemins de roulement respectifs (5, 6, 10, 11) de la bague intérieure (4) ou de la bague extérieure (9). L'invention vise à atteindre une force portante élevée tout en assurant des coûts de production faibles. A cet effet, la bague intérieure (4) et la bague extérieure (9) des deux paliers à roulement (2, 3) sont toutes deux réalisées sous forme d'éléments d'un seul tenant, la bague extérieure (9) ayant une forme tubulaire. Un palier à roulement (2) est réalisé en tant que roulement à billes alors que l'autre palier à roulement (3) est réalisé en tant que roulement à rouleaux cylindriques.
EP05792265A 2004-09-15 2005-09-09 Ensemble palier de pedalier ou palier de moyeu Withdrawn EP1794006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004045014A DE102004045014B4 (de) 2004-09-15 2004-09-15 Tretlager- oder Radnabenlageranordnung
PCT/EP2005/009698 WO2006029766A1 (fr) 2004-09-15 2005-09-09 Ensemble palier de pedalier ou palier de moyeu

Publications (1)

Publication Number Publication Date
EP1794006A1 true EP1794006A1 (fr) 2007-06-13

Family

ID=35447859

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05783983A Withdrawn EP1802518A1 (fr) 2004-09-15 2005-08-05 Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite
EP05792265A Withdrawn EP1794006A1 (fr) 2004-09-15 2005-09-09 Ensemble palier de pedalier ou palier de moyeu

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05783983A Withdrawn EP1802518A1 (fr) 2004-09-15 2005-08-05 Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite

Country Status (4)

Country Link
US (2) US20070296155A1 (fr)
EP (2) EP1802518A1 (fr)
DE (1) DE102004045014B4 (fr)
WO (2) WO2006029673A1 (fr)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
EP1792820B1 (fr) * 2005-12-02 2010-06-16 Campagnolo S.R.L. Ensemble de pédalier pour pédalier, axe et manivelle de pédalier de bicyclette
EP1820726B1 (fr) * 2006-02-20 2011-09-14 Campagnolo S.r.l. Pédalier de bicyclette
EP1829779B1 (fr) * 2006-03-03 2011-01-12 CAMPAGNOLO S.r.l. Ensemble de pédalier pour bicyclette et adaptateur pour un tel ensemble
JP2007297040A (ja) 2006-05-04 2007-11-15 Campagnolo Spa 自転車のクランクアーム・アセンブリ
ITMI20070406U1 (it) * 2007-12-05 2009-06-06 Campagnolo Srl Assieme di movimento centrale di bicicletta ed albero per un tale assieme
EP2110301B1 (fr) * 2008-04-17 2014-12-24 CAMPAGNOLO S.r.l. Ensemble de composants de bicyclette rotatifs et bicyclette comportant un tel assemblage
DE102008029088A1 (de) 2008-06-20 2009-12-24 Schaeffler Kg Tretlager für ein Fahrrad
AR076221A1 (es) * 2009-04-09 2011-05-26 Astrazeneca Ab Derivado de pirazol [4,5-e] pirimidina y su uso para tratar diabetes y obesidad
DE102009039073A1 (de) 2009-08-27 2011-03-03 Aktiebolaget Skf Bauelement einer Wälzlagerung
CN103991333B (zh) * 2013-02-20 2017-02-15 雅瑟斯精密机械(江苏)有限公司 自行车花鼓
EP3501960B1 (fr) 2017-12-22 2021-11-10 Campagnolo S.r.l. Pédalier de bicyclette
US20220411011A1 (en) * 2021-06-28 2022-12-29 Fox Factory, Inc. Seal structures

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Title
See references of WO2006029766A1 *

Also Published As

Publication number Publication date
WO2006029766A1 (fr) 2006-03-23
EP1802518A1 (fr) 2007-07-04
US20070296155A1 (en) 2007-12-27
WO2006029673A1 (fr) 2006-03-23
DE102004045014A1 (de) 2006-03-30
DE102004045014B4 (de) 2007-06-28
US20080124018A1 (en) 2008-05-29

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