EP1751439A1 - Roulement a rouleaux coniques pour roue - Google Patents

Roulement a rouleaux coniques pour roue

Info

Publication number
EP1751439A1
EP1751439A1 EP05750299A EP05750299A EP1751439A1 EP 1751439 A1 EP1751439 A1 EP 1751439A1 EP 05750299 A EP05750299 A EP 05750299A EP 05750299 A EP05750299 A EP 05750299A EP 1751439 A1 EP1751439 A1 EP 1751439A1
Authority
EP
European Patent Office
Prior art keywords
wheel bearing
bearing unit
tapered rollers
axial
unit according
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Withdrawn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
EP05750299A
Other languages
German (de)
English (en)
Inventor
Heinrich Hofmann
Johannes De Boer
Horst DÖPPLING
Bernhard Wilm
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.)
IHO Holding GmbH and Co KG
Original Assignee
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 Schaeffler KG filed Critical Schaeffler KG
Publication of EP1751439A1 publication Critical patent/EP1751439A1/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Withdrawn legal-status Critical Current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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window 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
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • 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
    • 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
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Definitions

  • wheel bearings have at least one but mostly two or more inner raceways for tapered rollers directly on a wheel carrier or on one or more outer rings.
  • the outer ring or rings are received in a wheel carrier.
  • the wheel carrier is provided with one or more flanges.
  • a flange is used for fastening the wheel carrier on the vehicle or for fastening one or more vehicle wheels to the wheel carrier.
  • the hub is fastened on the vehicle side and the inner raceways rotate around the fixed hub. If the wheel carrier is fixed on the vehicle side, the hub is rotatably mounted in the wheel carrier by means of the wheel bearing, as a result of which the outer raceways are rotatably supported relative to the vehicle-mounted inner raceways. At the In this case the hub is / are attached to one or more vehicle wheels.
  • inclined roller bearings in particular tapered roller bearings
  • tapered roller bearings are able to absorb both forces acting radially to the axis of rotation and axially, i.e. acting in the same direction as the axis of rotation of the wheel bearing, via the raceways due to the contact angle specified by the design.
  • axial supports must be provided for the flanks of the rollers, which prevent the rollers from moving axially out of the raceways.
  • These axial supports are usually rims that extend beyond the raceways of the inner rings of the wheel bearing on the inner rings on which the end faces of the tapered rollers run.
  • the object of the invention is therefore to provide a wheel bearing unit that is robust, whose inner and outer raceways can be produced inexpensively and whose individual parts can be easily assembled.
  • the respective axial support assigned to an inner raceway is a flange formed in one piece with the inner raceway. If the inner raceway (s) are arranged directly on the wheel carrier, the or the rims are accordingly made in one piece and in one material with the wheel carrier.
  • the inner raceway (s) is / are preferably formed on an outer ring which is mounted in the wheel carrier.
  • each of the inner raceways is assigned a shelf, the inner raceways preferably running axially between the shelves, i.e. the large end faces of one row of tapered rollers face away from the large end faces of the axially adjacent row of tapered rollers.
  • the inner rings are without a shelf and are therefore easier to machine.
  • the unit is easy to assemble. The number of individual parts and thus the assembly effort is reduced.
  • the wheel bearing as a structural unit that can be completely assembled in a wheel carrier with one or two inner rings and with or without a hub pre-assembled.
  • the wheel bearing has at least one axial securing device per inner ring, which is in operative connection with the respective inner ring.
  • the axial lock connects axially to the tapered rollers on the side of the smallest diameter of the tapered rollers and is in positive engagement with the inner ring.
  • the axial securing stands radially beyond the smallest diameter of the respective outer raceway on the inner ring and thus axially faces the end faces of the tapered roller on the part of the smallest diameter of the tapered rollers.
  • the wheel bearing can be transported and handled pre-assembled, since the axial lock holds the tapered rollers and the outer and inner ring together by contact with the small end faces of the tapered rollers.
  • the axial lock alternatively holds the unit together by axial contact with a cage instead of direct contact with the end faces in which the tapered rollers are guided.
  • the simplest form of axial securing is a securing ring which engages in an annular groove on the inner ring.
  • the axial lock is formed directly on a cage for the tapered rollers.
  • the axial securing device engages in a form-fitting manner in an annular groove of the inner ring from the cage.
  • Such an axial lock is, for example, one or are preferably a plurality of snap-in catches arranged on the circumference of the plastic cage, which spring open when the cage is pushed onto the inner ring with the rolling elements and then deflect into a corresponding annular groove on the inner ring.
  • FIG. 1 shows a wheel bearing unit 1, of which preferably two wheel bearing units 1 installed against one another are installed in a wheel carrier (not shown).
  • the wheel bearing unit 1 has an inner ring 2 with an outer race 3 and an outer ring 4 with an inner race 5.
  • Tapered rollers 6 are arranged between the inner ring 2 and the outer ring 4 and run on the inner race 5 and on the outer race 3.
  • the tapered rollers 6 are guided in a cage 9.
  • the outer ring 4 has a flange 7 which is formed in one piece with the outer ring 4 and thus in one piece with the inner race 5.
  • the rim 7 protrudes from the largest inner diameter D, radially beyond the inner raceway 5 in the direction of the axis of rotation 1a, and is thus opposite from the large end face 6a of the tapered roller 6 due to the large diameter of the tapered rollers 6.
  • the wheel bearing unit 1 is held in place by means of the axial securing means 8 in the form of a plurality of snap noses 9a formed in one piece with the cage 9.
  • the snap lug 9a is formed on the side of the cage 9 which connects to the small diameter of the tapered rollers 6.
  • the axial lock 8 engages in a form-fitting manner in a groove 2b of the inner ring 2, which adjoins the outer race 3 at its smallest outer diameter D a .
  • the outer ring 4 has a cylindrical outer surface 4a, which is provided for the seat in the wheel carrier, not shown.
  • the inner ring 2 is provided with an inner lateral surface 2a for the seat on a hub, not shown.
  • FIG. 2 shows a wheel bearing unit 10 with two rows of tapered rollers 6 positioned against one another.
  • the tapered rollers 6, each guided in a cage 11, are preloaded against a common outer ring 13 by means of the inner rings in the installed state.
  • the preload is usually carried out on a hub, not shown, on which the inner rings 12 sit with the inner surface.
  • Each of the inner rings 12 has an outer race 3 and the outer ring 13 has two inner races 5.
  • the outer ring 13 has two of the rims 7, each of which is formed in one piece with the outer ring 13 and thus in one piece with the respective inner race 5.
  • Each of the ribs 7 protrudes radially beyond the inner raceway 5 in the direction of the axis of rotation 10a on the part of the largest inner diameter D.
  • the wheel bearing unit 10 is held in place by means of the axial locks 8 in the form of locking rings 14.
  • Each of the axial locks 8 sits in a form-fitting manner in a groove 12b of the respective inner ring 12.
  • the grooves 12b adjoin the respective outer race 3 at their smallest outer diameter D a .
  • the outer ring 13 has a cylindrical outer surface 13a, which is provided for the seat in the wheel carrier, not shown.
  • Wheel bearing unit 8 Axial locka Rotation axis 9 Cage inner ring 9a Snap nose inner circumferential surface 10 Wheel bearing unitb Groove 10a Rotation axis outer raceway 11 Cage outer ring 12 Inner ringa Outer circumferential surface 12a Inner circumferential surface inner raceway 12b Groove tapered roller 13 Outer ringa Front surface 13a External surface board 14 Circlip

Landscapes

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

Abstract

L'invention concerne une unité de roulement de roue (1, 10) comportant au moins une piste de roulement intérieure (5) pour rouleaux coniques (6) et un montant axial pour faces avant (6a) des rouleaux coniques (6), qui jouxte la piste de roulement intérieure (5). Le montant axial jouxte les rouleaux coniques (6) dans le sens axial, côté grand diamètre des rouleaux coniques (6). Le montant axial fait saillie, dans le sens radial, au-dessus du diamètre intérieur le plus grand de la piste de roulement intérieure (5).
EP05750299A 2004-05-29 2005-05-21 Roulement a rouleaux coniques pour roue Withdrawn EP1751439A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004026457A DE102004026457A1 (de) 2004-05-29 2004-05-29 Radlagereinheit
PCT/DE2005/000937 WO2005116466A1 (fr) 2004-05-29 2005-05-21 Roulement a rouleaux coniques pour roue

Publications (1)

Publication Number Publication Date
EP1751439A1 true EP1751439A1 (fr) 2007-02-14

Family

ID=34969760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05750299A Withdrawn EP1751439A1 (fr) 2004-05-29 2005-05-21 Roulement a rouleaux coniques pour roue

Country Status (4)

Country Link
US (1) US20080044121A1 (fr)
EP (1) EP1751439A1 (fr)
DE (1) DE102004026457A1 (fr)
WO (1) WO2005116466A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005053992A1 (de) * 2005-11-10 2007-05-24 Ab Skf Wälzlagerung
DE102006012785A1 (de) * 2006-03-21 2007-09-27 Schaeffler Kg Schrägrollenlager
DE102006031029A1 (de) * 2006-07-05 2008-01-10 Schaeffler Kg Radlagereinheit
DE102008047819A1 (de) * 2008-09-18 2010-03-25 Schaeffler Kg Laufrolle mit Zylinderrollenlagerung
WO2013028284A1 (fr) * 2011-08-19 2013-02-28 The Timken Company Cage de palier pour un ensemble roulement à rouleaux
DE102013212962A1 (de) * 2013-07-03 2015-01-08 Aktiebolaget Skf Lagerkäfig für verlängerte Fettgebrauchsdauer
JP6284368B2 (ja) 2014-01-06 2018-02-28 ナブテスコ株式会社 歯車伝動装置
JP6285728B2 (ja) 2014-01-22 2018-02-28 ナブテスコ株式会社 歯車伝動装置
JP6694288B2 (ja) * 2016-02-05 2020-05-13 ナブテスコ株式会社 コロ軸受
WO2020116488A1 (fr) * 2018-12-07 2020-06-11 Ntn株式会社 Roulement à rouleaux coniques
JP7516014B2 (ja) * 2019-06-27 2024-07-16 ナブテスコ株式会社 回転機構、減速機および回転機構の製造方法
DE102021108401A1 (de) 2021-04-01 2022-10-06 Schaeffler Technologies AG & Co. KG Kegelrollenlager

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Also Published As

Publication number Publication date
DE102004026457A1 (de) 2005-12-22
WO2005116466A1 (fr) 2005-12-08
US20080044121A1 (en) 2008-02-21

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