EP4200534A1 - Innenringbefestigte rollenhülse und verfahren zur herstellung derselben - Google Patents
Innenringbefestigte rollenhülse und verfahren zur herstellung derselbenInfo
- Publication number
- EP4200534A1 EP4200534A1 EP21748496.3A EP21748496A EP4200534A1 EP 4200534 A1 EP4200534 A1 EP 4200534A1 EP 21748496 A EP21748496 A EP 21748496A EP 4200534 A1 EP4200534 A1 EP 4200534A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner ring
- rim
- bearing cage
- roller
- ring
- 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.)
- Pending
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
- F16C33/46—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
- 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
- F16C19/24—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 radial load mainly
- F16C19/26—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 radial load mainly with a single row of 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
- 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
-
- 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
- F16C33/588—Races of sheet metal
-
- 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
- F16C33/64—Special methods of manufacture
-
- 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
- F16C2220/00—Shaping
- F16C2220/40—Shaping by deformation without removing material
- F16C2220/42—Shaping by deformation without removing material by working of thin-walled material such as sheet or tube
-
- 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
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/65—Gear shifting, change speed gear, gear box
Definitions
- the invention relates to a roller sleeve fastened to the inner ring according to the features forming the preamble of patent claim 1, which can be used particularly advantageously for mounting hollow shafts, gear wheels or planet carriers in motor vehicle manual transmissions. Furthermore, the invention relates to a method for producing such a roll core.
- roller sleeves are the type of radial roller bearing that have the smallest radial overall height and enable particularly space-saving and easy-to-install bearings with a high radial load capacity.
- the best-known and most frequently used design is the housing- or outer ring-mounted roller sleeve known from DE 195 13 668 A1, for example, which consists of an outer ring that can be inserted into a housing and a roller and cage assembly that is inserted into this outer ring, which is supported by an axially slotted bearing cage made of plastic without a cage lock and made up of a large number of roller bodies inserted into this bearing cage, which roll on an outer raceway formed by the inner lateral surface of the outer ring, with the roller and cage assembly being guided axially by two flanges which are arranged on the axial sides of the outer ring and extend radially inwards .
- such outer ring-mounted roller cores are manufactured in such a way that a pot-shaped, rotationally symmetrical drawn part consisting of a base and a jacket is first formed from a round blank punched out of a sheet metal strip by a one- or multi-stage deep-drawing process, with the jacket at its dem ground away th side has a reduced wall thickness, then the bottom is punched out, so that a first rim is created, then the jacket is trimmed in the area of its reduced wall thickness, the jacket is then flanged in the area of the reduced wall thickness, so that a second rim is created, the is then straightened by a piercing process before, after the pot has been formed into a roller sleeve, an axially slotted cage fitted with roller rolling elements is inserted without a cage lock.
- a possible solution to this problem would be to lock the open plastic bearing cage with a known cage lock to train, however, none of these cage locks has proven to be durable enough for the requirements in a transmission.
- Another way to solve the problem described would be to use a closed bearing cage made of sheet steel, which is then inserted into the inner ring before the second rim is flanged and, after the second rim is flanged, is subjected to the necessary heat treatment together with the inner ring . For this, however, the increased production and material costs for the production of the roller sleeve fixed to the inner ring would have to be accepted.
- the invention is therefore based on the object of designing a roller sleeve fastened to the inner ring, the roller and cage assembly of which can be formed with a cost-effective, axially slotted bearing cage made of plastic, the loosely abutting ends of which do not fall out of the inner ring can fall out. Furthermore, it is the object of the invention to provide a cost-effective method for producing a roller sleeve fastened to the inner ring.
- this object is achieved with a roller core according to the preamble of claim 1 in such a way that by designing the inner ring with a rim that has a larger outer diameter than the other rim on the inner ring, and by designing this rim with a roller body axially to the roller bent edge area, the inner ring can be produced as a finished and heat-treated component, and an axially slotted plastic cage can be used as the bearing cage, one side ring of which is radially surrounded by the axially bent edge area of the rim with the larger outer diameter and thus fixes the roller and cage assembly in the inner ring.
- Preferred configurations and advantageous further developments of the roller core designed according to the invention are described in subclaims 2 to 5.
- one side ring of the bearing cage has a larger outside diameter than the other side ring of the bearing cage and both side rings are connected to one another by connecting webs with a Z-shaped profile cross section.
- the design of the bearing cage with a side ring, the outer diameter of which is smaller than that of the other side ring, is necessary in order to be able to arrange this side ring under the axially bent edge area of the inner ring, the outer diameter of which in turn must be smaller than the rolling diameter of the rolling elements .
- the Z-shaped profile cross section of the connecting webs also has the advantage that their contact surfaces, which are adapted to the outer diameter of the roller rolling elements, to the roller rolling elements are enlarged and thus improve the guidance of the cage.
- roller sleeve designed according to the invention is that the side ring of the bearing cage with the larger outer diameter radially encloses the rim on the inner ring with the smaller outer diameter with a gap spacing and the bearing cage is designed as a bearing cage guided by rolling elements.
- the bearing cage is designed as a bearing cage guided by rolling elements.
- the roller sleeve designed according to the invention is also characterized in that the rim of the inner ring, which has a larger outer diameter, is formed with a lower material thickness than the rim of the inner ring, which has a smaller outer diameter.
- the lower material thickness of the rim with the larger outer diameter is selected by a corresponding calibration process. produced during the manufacture of the roller sleeve and is intended to avoid the formation of folds on the flange surfaces of the axially bent edge region of the inner ring when the flange is bent into its final position.
- the roller sleeve designed according to the invention thus has the advantage over the roller sleeves known from the prior art that by designing the inner ring with a rim that has a larger outer diameter than the other rim on the inner ring, and by designing this rim with one of the roller rolling elements axially bent edge area of the roller and cage assembly can be formed with a cost-effective, axially slotted bearing cage made of plastic, one side ring of which can be pushed under the axially bent edge area of the rim with the larger outer diameter in such a way that the loosely abutting ends of the roller and cage assembly no longer come out of the inner ring due to the force of gravity can fall out.
- the second part of the object of the invention is achieved according to the independent claim 6 according to the invention by a method for producing the roller sleeve described, which comprises the following steps: a) punching out a blank from a metal strip made of through-hardening or case-hardening steel; b) Deep-drawing of the blank to form a pot-shaped starting part, with an angled peripheral pot rim forming the rim having a smaller outer diameter and the outer lateral surface of the pot wall forming the inner raceway and the rim of the inner ring having a larger outer diameter; c) calibrating that part of the outer lateral surface of the pot wall which forms the rim of the inner ring which has a larger outer diameter, to a smaller material thickness; d) flapping of the rim of the inner ring, which has a smaller outside diameter; e) punching out the base of the pot-shaped starting part along the inner lateral surface of the pot wall; f) trimming the angled pot rim to the finished diameter of the rim having a
- step i) can optionally be followed by surface machining of the inner ring by grinding the inner raceway.
- FIG. 1 shows a side view of a roller core designed according to the invention
- FIG. 2 shows the section AA according to FIG. 1 through the roller sleeve designed according to the invention
- FIG. 3 shows the detail Z of the sectional view through the roller sleeve designed according to the invention according to FIG. 2;
- FIG. 4 shows the detail Y of the sectional view through the roller sleeve designed according to the invention according to FIG. 2;
- FIG. 5 shows a three-dimensional overall view of the roller core designed according to the invention.
- FIGS. 1, 2 and 5 each show a roller sleeve 1 fastened to the inner ring, which consists of an inner ring 2 fastened to a shaft or axle (not shown) and a roller ring 3 arranged on this inner ring 2 .
- the roller ring 3 is formed by a bearing cage 4 consisting of two side rings 5, 6 and a plurality of connecting webs 7 and by a plurality of roller bodies 8 inserted into this bearing cage 4
- Bearing cage 4 are held at regular intervals in the circumferential direction and roll on an inner raceway 9 formed by the outer lateral surface of the inner ring 2 .
- two rims 10, 11 are arranged in a known manner on the axial sides of the inner ring 2, which extend radially outwards.
- one rim 11 on the inner ring 2 formed with a larger outer diameter than the other board 10 on the inner ring 2 and its edge region 12 to the roller rolling Bodies 8 are bent axially, so that one side ring 6 of the bearing cage 4 is surrounded radially by the axially bent edge region 12 of the rim 11 and the roller and cage assembly 3 is fixed in the inner ring 2 .
- Figures 3 and 4 also show that one side ring 5 of the bearing cage 4 has a larger outer diameter than the other side ring 6 of the bearing cage 4 and that both side rings 5, 6 are connected to one another by connecting webs 7 with a Z-shaped profile cross section.
- the rim 11 of the inner ring 2 which has a larger outer diameter, is designed with a smaller material thickness than the rim 10 of the inner ring 2, which has a smaller outer diameter, for better formability.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020121839.7A DE102020121839A1 (de) | 2020-08-20 | 2020-08-20 | Innenringbefestigte Rollenhülse und Verfahren zur Herstellung derselben |
| PCT/DE2021/100622 WO2022037744A1 (de) | 2020-08-20 | 2021-07-15 | Innenringbefestigte rollenhülse und verfahren zur herstellung derselben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4200534A1 true EP4200534A1 (de) | 2023-06-28 |
Family
ID=77126497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21748496.3A Pending EP4200534A1 (de) | 2020-08-20 | 2021-07-15 | Innenringbefestigte rollenhülse und verfahren zur herstellung derselben |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12378997B2 (de) |
| EP (1) | EP4200534A1 (de) |
| CN (1) | CN116097012A (de) |
| DE (1) | DE102020121839A1 (de) |
| WO (1) | WO2022037744A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020127445A1 (de) * | 2020-10-19 | 2022-04-21 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig mit Käfigschloss sowie Verfahren zur Montage des Wälzlagerkäfigs |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB446905A (en) | 1933-11-07 | 1936-05-07 | Torrington Co | Improvements in or relating to roller bearings |
| US2721775A (en) | 1953-09-14 | 1955-10-25 | Alan D Nusbaum | External self-retaining needle bearing |
| DE19513668A1 (de) | 1995-04-11 | 1996-10-17 | Schaeffler Waelzlager Kg | Nadellager und Verfahren zu seiner Herstellung |
| DE102011007458A1 (de) | 2011-04-15 | 2012-10-18 | Schaeffler Technologies AG & Co. KG | Radial-Rollenwälzlager |
| EP2791520B1 (de) * | 2011-12-13 | 2019-07-31 | Koyo Bearings North America LLC | Lageraussenschale |
| WO2014013955A1 (ja) * | 2012-07-17 | 2014-01-23 | 日本精工株式会社 | ラジアルころ軸受用保持器 |
| DE102012021687A1 (de) | 2012-11-07 | 2014-05-22 | Schaeffler Technologies Gmbh & Co. Kg | Laufring für ein Hülsenlager |
| DE102013215892A1 (de) * | 2013-08-12 | 2015-02-12 | Schaeffler Technologies Gmbh & Co. Kg | Lagerstelle mit einem zweireihigen Polygonlager |
| US20160069392A1 (en) * | 2014-09-10 | 2016-03-10 | Schaeffler Technologies AG & Co. KG | Radial bearing with variable lubrication flow restriction |
| US10837072B2 (en) * | 2016-08-29 | 2020-11-17 | Magna Powertrain Inc. | Splined power transmission components made using heat-assisted calibration process and method of forming such splined power transmission components |
| JP2019015373A (ja) * | 2017-07-10 | 2019-01-31 | 株式会社ジェイテクト | ラジアルころ軸受 |
-
2020
- 2020-08-20 DE DE102020121839.7A patent/DE102020121839A1/de active Pending
-
2021
- 2021-07-15 CN CN202180055518.3A patent/CN116097012A/zh active Pending
- 2021-07-15 EP EP21748496.3A patent/EP4200534A1/de active Pending
- 2021-07-15 US US18/018,385 patent/US12378997B2/en active Active
- 2021-07-15 WO PCT/DE2021/100622 patent/WO2022037744A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022037744A1 (de) | 2022-02-24 |
| US12378997B2 (en) | 2025-08-05 |
| DE102020121839A1 (de) | 2022-02-24 |
| US20230296135A1 (en) | 2023-09-21 |
| CN116097012A (zh) | 2023-05-09 |
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