GB2186534A - Vehicle hub assembly - Google Patents
Vehicle hub assembly Download PDFInfo
- Publication number
- GB2186534A GB2186534A GB08703339A GB8703339A GB2186534A GB 2186534 A GB2186534 A GB 2186534A GB 08703339 A GB08703339 A GB 08703339A GB 8703339 A GB8703339 A GB 8703339A GB 2186534 A GB2186534 A GB 2186534A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub member
- hub
- projection
- formations
- universal joint
- 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.)
- Granted
Links
- 238000005242 forging Methods 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 14
- 238000005755 formation reaction Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 16
- 241000282472 Canis lupus familiaris Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F16C19/02—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
- F16C19/18—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 with two or more rows of balls
- F16C19/181—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 with two or more rows of balls with angular contact
- F16C19/183—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 with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—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 with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/187—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 with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with all four raceways integrated on parts other than race rings, e.g. fourth generation hubs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/025—Special design or construction with rolling or wobbling dies
-
- 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
-
- 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
- F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Forging (AREA)
- Transmission Devices (AREA)
- Gears, Cams (AREA)
Abstract
A hub assembly for a motor vehicle, comprising a hub member 1 rotatable in an outer bearing 3 race by balls 4, a constant velocity ratio universal joint 5 for driving the hub member and having an outer member 7 connected for torque transmission to the hub member by interfitting projection and recess formations such as circumferentially spaced teeth 16, is characterised in that the interfitting formations are provided on the respective components 1 and 7 by an incremental deformation (rotary forging or orbital pressing) process. The hub member and universal joint may be provided as separate units corrected by a bolt 19, having its head in a recess 20 in the hub member for easy access. The components 1 and 7 may be made from steel having a carbon content of 0.4% to 1.2%. <IMAGE>
Description
SPECIFICATION
Hub assembly
This invention relates to a hubassemblyfora drivablewheel of a motorvehicle, comprising a hub member arranged to be rotatably supported by bearing means relative to a carrier; and a constant velocity ratio universal joint having a member connected fortorque transmission with the hub member by axially interfitting projection and recess formations provided thereon, and fastening means holding the joint member and hub membertogether with said projection and recess formations in engagement with one another. Such a hub assembly will hereafter be referred to as a hub assembly ofthe kind specified.
One form of hub assemblyofthe kind specified is disclosed in British Patent 2,097,735. The hub member and the outer member of the universal joint have interengaging projections and recesses in the form of circumferentially spaced dogs engaging in complementary recesses, e.g. apertures. The fastening means holding the hub member and joint membertogethercomprises a central bolt.
Anotherform of hub assembly ofthe kind specified is disclosed in British Patent 2,097,734. In this example, which is otherwise generallysimilarto that of British Patent 2,097,735, the interfitting projection and recess formations comprise interfitting teeth which are of a configuration such that they engage in a clearance-free manner.
Such hub assemblies have advantages that the hub member, with its bearing means, and the universal joint can be supplied as pre-assembled units which are easily fitted together. They are readily dismantled for repair or servicing purposes.
On the other hand, production ofthe projection and recess formations, whether in the form of teeth or dogs, is very labour and cost intensive. This applies whether such teeth are produced by machining operations or by conventional cold forming, upsetting, or like deformation processes.
Accordingly, it is the object of the present invention to provide, in such a hubassembly,for production ofthe inter-engaging projection and recess formations at lower cost, while at the same time having a high degree of dimensional accuracy.
According to the present invention, we provide a hub assembly ofthe kind specified wherein said projection and recess formations are provided on the joint member and the hub member by an incremental deformation process (rotary forging or orbital pressing).
The universal joint member, which is preferably the outer member of the joint, preferably has a surface which faces the hub member and which, apart from projection and recess formations such as circumferentially spaced teeth, is generally flat and in particulardoesnothaveanygenerallycylindrical projection interfitting with the hub member.
The material used for the parts subjected to rotary forging may be a steel whose carbon content is in the range between 0.4% and 1.2%.
The invention has a number of advantages,
particularly being that formations such as teeth can
be produced with relative ease and economy while at
the same time being characterised buy a high degree of accuracy. Afurther advantage of using the process of rotary forging isthat pressing forces required are
relatively low in comparison with simple cold
forming techniques. For example, vocording to Mossle (Kaltmassivumformung durch
Taumelpressen) in Z Industrie No. 79, 03.10.79, page 66, forworkpieces having a diameter of the orderof 80to 100mm the press design for rotaryforging does
not have to have a nominal force of more than
1 600kn.
The basic incremental deformation principle ofthe
process variously described as rotary forging or
orbital pressing, as described by Mossle and others,
is that the workpiece is formed between two dies of which one carries out a defined movement which
may be described as a rotary movement, an orbital
movement, or a rocking movement, about a centre
point of the die. In the repeated movement of the die the forming force at any instant is concentrated in a
restricted forming zone which moves across the entire surface ofthe workpiece with movement of the die. The reduction ofthe area of contact between the workpiece and die results in a considerable decrease in the total force required to be exerted by the press in which the operation is being carried out, and in the stress on the dies.
To enable rotary forging to be efficiently applied to the parts of a hub assembly according to the invention,the blankforged parthasto be designed in an appropriate mannerand a suitable material has to be selected. The present invention meets these conditions firstly in that the surface of the outerjoint memberfacing the hub member is of a generallyflat design without any cylindrical projection. Secondly, the steel used for the parts may have a carbon content in the range 0.4% to 1.2%. Although in the general opinion ofthose skilled in the art a steel of this composition is less suitable than some other compositions for being subjected to forming operations, in practice rotary forging using such a material has proved to be successful.The increased carbon content renders the steel more suitable for, in the case ofthe hub member, acting as the inner race ofthe bearing means by which it is supported, without requiring the provision of a separate bearing inner race or races.
The invention will now be described by way of example with reference to the accompanying drawings, of which: : - Figure lisa section through a hub assembly according to the invention;
Figure2 is a diagrammatic illustration ofthe rotary forging technique used for making parts according to the invention;
Figure 3 shows possible movements of a die in the course of the rotary forging operation;
Figure4 illustrates forces arising during rotary forging in comparison with convention cold forming or upsetting.
Referring firstly to Figure 1 ,there is illustrated a hub assembly comprising a hub member 1 provided with a flange 2 for wheel attachment. The hub member has a portion 22 which constitutes the inner race for a double row angular contact ball bearing having an outer bearing race 3 and balls 4, i.e. a so called radiax bearing. The outer race 3 has threaded apertures to enable it to be connected to a wheel carrier member forming part of a motorvehicle suspension. At the side offlange 2 opposite the bearing race part 22, hub 1 is provided with an annular projection 6 for receiving and centering a brake disc.
The assemblyfurthercomprisesa constant velocity ratio universal joint 5 of known type. Thus, the constant velocity ratio universal joint comprises an outer joint member7 having circumferentially spaced grooves 8 in its interior, and an innerjoint member 9 having grooves 10 which face the grooves in the outerjoint member. A plurality of balls 11 are received one in each facing pair of grooves in the joint members, and the balls are received in windows of a cage 12. The innerjoint member9 has a splined bore in which is received the splined end portion of a shaft 13. Aflexible sealing boot 14, connected between the outer joint member7 and shaft 13, retains lubricant in and excludes dirt fro the interior ofthe universal joint.
The outer joint member7 has a portion 15which facesthe hub member 1. The portion 15 ofthe joint outer member and a facing portion 1 a of the hub member have inter-engaging projection and recess formations in the form of ci rcu mferentially spaced teeth 16, which are produced by a rntaryforging process as hereafter described. The teeth 16 serve to transmittorque between the joint outer member and hub member, and these parts are held together by an axially extending bolt 19 engaging in a threaded bore 18 in the joint outer member. The head ofthe bolt 19 lies within a space 20 within the centering projection 6.
The outer joint member and hub member are thus connected togetherfortorque transmission in a manner which, by removal of bolt 19, permits easy dismantling. The head of bolt 19would normally be accessible through the centre of the vehicle's wheel (not shown), so that if required the shaft 13 and universal joint can be readily removed from a vehicle.
As above mentioned, the interengaging teeth 16 on the portion 15 ofthe outer joint member and the portion 1 a of the hub member are provided by subjecting each ofthese parts to a rotary forging process. As is illustrated in Figure 2, such a process is carried out by subjecting a workpiece 25 to an operation between a fixed lower die 26 and an upper die 24which undergoes an orbital or rotary motion relative to the lower die. As shown in Figure 2, the upper die may move such that its axis, inclined to the axis ofthe lower die at an inclination Y1,describes a conical form. In Figure 2, the lower die 26 is shown as provided with an ejector 27.
Various rotary or orbital movements of the upper die relative to the lower die are possible, and these are shown in Figure 3.
In Figure3a, a circular motion of the upper die is shown. The instantaneous contact area between the upper die and workpiece moves in the circumferential direction only. This motion is particular suitable if an intense material flow is required, e.g. when forming workpieces with relatively large and thin flanges.
Figure 3b shows a spiral movement of the instantaneous area of contact betweenthe upperdie and workpiece. This is advantageous if, due to a complicated shape ofthe centre portion ofthe workpiece, a high flow of material in such region is required.
Figure 3c shows a reciprocating movement in one plane of the instantaneous area of contact between the upper die and workpiece. Although no rotary motion is involved, the process is still known generically as rotary forging. This is particularly suitableforforming elongateworkpieces.
Figure 3d shows a three-lobed movement of the instantaneous area of contact between the upper die and workpiece. Such a movement is particularly suitable forforming workpieces with concentric ribs, such as bevel gears ortoothed clutch discs.
Figure 4 illustratesthe comparison between stresses arising during a conventional cold forming or upsetting operation between flat dies, compared with a rotary forging operation using an orbiting die.
In both cases, direct stress is indicated bythevertical axis QZ. The workpiece has a diameter d and a thickness S. In the left hand diagram, thefull4ace contact surface between the upper die and workpiece is indicated at 28, with a high maximum stress QZ max. In the right hand diagram, the much smaller area of contact between the orbital rotary forging die and the workpiece is indicated at 29, and the lower maximum value of QZ.
Claims (5)
1. A hub assembly of the kind specified wherein said projection and recess formations are provided on the joint member and the hub member by an incremental deformation process (rotary forging or orbital pressing).
2. An assembly according to Claim 1 wherein the universal joint member has a surface which faces the hub member and which, apartfrom said projection and recess formations, is generallyflat.
3. An assembly according to Claim 1 or Claim 2 wherein the material of the parts subjected to incremental deformation is a steel whose carbon content is in the range between 0.4% and 1.2%.
4. An assembly according to any one ofthe preceding claims wherein said formations comprise circumferentially distributed teeth.
5. An assembly substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863604630 DE3604630A1 (en) | 1986-02-14 | 1986-02-14 | STORAGE ARRANGEMENT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8703339D0 GB8703339D0 (en) | 1987-03-18 |
| GB2186534A true GB2186534A (en) | 1987-08-19 |
| GB2186534B GB2186534B (en) | 1988-10-19 |
Family
ID=6294073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08703339A Expired GB2186534B (en) | 1986-02-14 | 1987-02-13 | Hub assembly |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS62194903A (en) |
| DE (1) | DE3604630A1 (en) |
| ES (1) | ES8707145A1 (en) |
| FR (1) | FR2594385B1 (en) |
| GB (1) | GB2186534B (en) |
| IT (2) | IT8607045V0 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2734618A1 (en) * | 1995-05-22 | 1996-11-29 | Fichtel & Sachs Ag | ATTACHING A FLYWHEEL TO THE CRANKSHAFT OF AN ENGINE |
| WO2008128515A1 (en) * | 2007-04-20 | 2008-10-30 | Schaeffler Kg | Bearing arrangement of a motor vehicle wheel hub driveable via a rotational joint and method for the production thereof |
| US8876427B2 (en) | 2005-04-20 | 2014-11-04 | Schaeffler Technologies AG & Co. KG | Spur toothing on a coupling element for transmitting torques |
| US9731549B2 (en) | 2013-07-25 | 2017-08-15 | Schaeffler Technologies AG & Co. KG | Driven wheel bearing unit with integrated torque measurement |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3744927C2 (en) * | 1987-11-25 | 1992-06-17 | Man Nutzfahrzeuge Ag, 8000 Muenchen, De | Constant velocity universal joint |
| DE3739927A1 (en) * | 1987-11-25 | 1989-06-08 | Man Nutzfahrzeuge Gmbh | Constant-velocity joint |
| DE19547096A1 (en) * | 1995-12-16 | 1997-06-19 | Audi Ag | Wheel bearing especially for motor vehicle with rotor element |
| DE19742740B4 (en) * | 1997-09-27 | 2006-12-21 | Audi Ag | Device for connecting a wheel hub to a drive shaft |
| DE202005021962U1 (en) | 2005-03-04 | 2011-10-27 | Schaeffler Technologies Gmbh & Co. Kg | Wheel bearing arrangement with spur toothing |
| DE102005009935A1 (en) | 2005-03-04 | 2006-09-07 | Schaeffler Kg | Wheel bearing arrangement with spur toothing |
| DE102005016427A1 (en) * | 2005-04-08 | 2006-10-12 | Schaeffler Kg | Bund with frontal teeth for a drivable hub |
| DE102005054023B3 (en) * | 2005-11-10 | 2006-10-12 | Emag Holding Gmbh | Method and device for creation of radial front teeth at work-piece, comprising milling process in first step and unit for cold-forming |
| DE102005054285B3 (en) | 2005-11-11 | 2007-05-31 | Gkn Driveline Deutschland Gmbh | Hub-swivel arrangement with face gear and wheel bearing |
| DE102005054283B4 (en) * | 2005-11-11 | 2009-07-02 | Gkn Driveline Deutschland Gmbh | Hub-swivel arrangement with spur toothing |
| DE102006027090A1 (en) | 2006-06-10 | 2007-12-13 | Schaeffler Kg | Storage arrangement with integrated torque measurement and device for controlling a torque distribution |
| DE102006031456B4 (en) * | 2006-07-07 | 2019-11-07 | Schaeffler Technologies AG & Co. KG | Storage arrangement with integrated torque measurement and device for controlling a torque distribution |
| US7997988B2 (en) * | 2006-08-23 | 2011-08-16 | Gkn Driveline North America, Inc. | Direct torque flow constant velocity joint face spline connector |
| DE102007016427B4 (en) | 2007-04-05 | 2010-11-25 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement of a driven via a rotary hub of a motor vehicle |
| EP2105321B1 (en) | 2008-03-28 | 2013-03-20 | JTEKT Corporation | Wheel bearing assembly, and manufacturing method thereof |
| JP2009241615A (en) * | 2008-03-28 | 2009-10-22 | Jtekt Corp | Wheel bearing device |
| JP2010047042A (en) * | 2008-08-19 | 2010-03-04 | Ntn Corp | Bearing device for driving wheel |
| DE102009023042A1 (en) | 2009-05-28 | 2010-07-01 | Schaeffler Technologies Gmbh & Co. Kg | Method for stamping spur gearing from rolling riveting flange of wheel bearing on automobile sector, involves radially limiting radial expansion of flange by die plate during deformation of end piece and formation of spur gearing |
| DE102009024351A1 (en) | 2009-06-09 | 2010-12-16 | Schaeffler Technologies Gmbh & Co. Kg | Bearing application for a motor vehicle's wheel-hub driven by an articulated unit in a swivel joint has a wheel-hub and a roller bearing |
| DE102009024348A1 (en) | 2009-06-09 | 2010-12-16 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement for the wheel hub of a motor vehicle comprises a rolling body with rolling bearings formed as rollers each having two side surfaces flattened symmetrically by a ball base and arranged parallel to each other |
| DE102009034770A1 (en) | 2009-07-25 | 2011-01-27 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement for wheel hub of motor vehicle, has rolling bodies unreeled in two adjacent groove-shaped race ways, which are non-cuttingly forged into radially outer lateral surface of inner ring of bearing |
| JP5376234B2 (en) * | 2009-07-30 | 2013-12-25 | 株式会社ジェイテクト | Manufacturing method of rolling bearing device for wheel |
| DE102010035590B4 (en) * | 2010-08-27 | 2023-08-31 | Volkswagen Ag | Method and device for manufacturing a structural component |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB319065A (en) * | 1928-05-19 | 1929-09-19 | Massey Ltd B & S | Improvements in forging and upsetting machines |
| GB1205171A (en) * | 1967-01-20 | 1970-09-16 | Politechnika Warszawska | Method and device for producing objects of non-uniform thickness |
| GB1217551A (en) * | 1968-01-17 | 1970-12-31 | Ni Pk I Tekhnologh Mash | Improvements in or relating to machiens for die-forging metal blanks |
| GB1224260A (en) * | 1969-07-03 | 1971-03-10 | Massey Ltd B & S | Improvements in upsetting or forging machines |
| GB1224259A (en) * | 1969-07-03 | 1971-03-10 | Massey Ltd B & S | Improvements in upsetting or forging machines |
| GB1497307A (en) * | 1974-07-29 | 1978-01-05 | Plasomet | Presses |
| EP0000943A1 (en) * | 1977-08-31 | 1979-03-07 | VERRINA S.p.A. | Device for making through-holes in metal blocks |
| EP0014570A1 (en) * | 1979-02-01 | 1980-08-20 | The City University | Rotary forging machine |
| GB2097735A (en) * | 1981-04-28 | 1982-11-10 | Loehr & Bromkamp Gmbh | Wheel hub assembly |
| GB2097734A (en) * | 1981-04-28 | 1982-11-10 | Loehr & Bromkamp Gmbh | Wheel hub assembly |
| GB2104813A (en) * | 1981-06-16 | 1983-03-16 | Univ Nottingham | Rotary forging or riveting |
| GB2113589A (en) * | 1982-01-25 | 1983-08-10 | Zahnradfabrik Friedrichshafen | Manufacture of racks |
| GB2157601A (en) * | 1984-04-21 | 1985-10-30 | Schmid Maschinen Und Werkzeugb | Wobble-die forging machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1586379A (en) * | 1968-06-24 | 1970-02-20 |
-
1986
- 1986-02-14 DE DE19863604630 patent/DE3604630A1/en active Granted
- 1986-06-20 JP JP61143088A patent/JPS62194903A/en active Pending
- 1986-06-24 ES ES556499A patent/ES8707145A1/en not_active Expired
- 1986-08-01 IT IT8607045U patent/IT8607045V0/en unknown
- 1986-08-01 IT IT05197/86A patent/IT1201638B/en active
-
1987
- 1987-02-13 GB GB08703339A patent/GB2186534B/en not_active Expired
- 1987-02-13 FR FR878701862A patent/FR2594385B1/en not_active Expired - Lifetime
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB319065A (en) * | 1928-05-19 | 1929-09-19 | Massey Ltd B & S | Improvements in forging and upsetting machines |
| GB1205171A (en) * | 1967-01-20 | 1970-09-16 | Politechnika Warszawska | Method and device for producing objects of non-uniform thickness |
| GB1217551A (en) * | 1968-01-17 | 1970-12-31 | Ni Pk I Tekhnologh Mash | Improvements in or relating to machiens for die-forging metal blanks |
| GB1224260A (en) * | 1969-07-03 | 1971-03-10 | Massey Ltd B & S | Improvements in upsetting or forging machines |
| GB1224259A (en) * | 1969-07-03 | 1971-03-10 | Massey Ltd B & S | Improvements in upsetting or forging machines |
| GB1497307A (en) * | 1974-07-29 | 1978-01-05 | Plasomet | Presses |
| EP0000943A1 (en) * | 1977-08-31 | 1979-03-07 | VERRINA S.p.A. | Device for making through-holes in metal blocks |
| EP0014570A1 (en) * | 1979-02-01 | 1980-08-20 | The City University | Rotary forging machine |
| GB2041268A (en) * | 1979-02-01 | 1980-09-10 | City University And Worshipful | Rotary forging machine |
| GB2097735A (en) * | 1981-04-28 | 1982-11-10 | Loehr & Bromkamp Gmbh | Wheel hub assembly |
| GB2097734A (en) * | 1981-04-28 | 1982-11-10 | Loehr & Bromkamp Gmbh | Wheel hub assembly |
| GB2104813A (en) * | 1981-06-16 | 1983-03-16 | Univ Nottingham | Rotary forging or riveting |
| GB2113589A (en) * | 1982-01-25 | 1983-08-10 | Zahnradfabrik Friedrichshafen | Manufacture of racks |
| GB2157601A (en) * | 1984-04-21 | 1985-10-30 | Schmid Maschinen Und Werkzeugb | Wobble-die forging machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2734618A1 (en) * | 1995-05-22 | 1996-11-29 | Fichtel & Sachs Ag | ATTACHING A FLYWHEEL TO THE CRANKSHAFT OF AN ENGINE |
| US8876427B2 (en) | 2005-04-20 | 2014-11-04 | Schaeffler Technologies AG & Co. KG | Spur toothing on a coupling element for transmitting torques |
| US9289814B2 (en) | 2005-04-20 | 2016-03-22 | Schaeffler Technologies AG & Co. KG | Spur toothing on a coupling element for transmitting torques |
| WO2008128515A1 (en) * | 2007-04-20 | 2008-10-30 | Schaeffler Kg | Bearing arrangement of a motor vehicle wheel hub driveable via a rotational joint and method for the production thereof |
| US9731549B2 (en) | 2013-07-25 | 2017-08-15 | Schaeffler Technologies AG & Co. KG | Driven wheel bearing unit with integrated torque measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62194903A (en) | 1987-08-27 |
| GB2186534B (en) | 1988-10-19 |
| IT8605197A0 (en) | 1986-08-01 |
| DE3604630C2 (en) | 1989-03-30 |
| FR2594385B1 (en) | 1992-07-24 |
| IT1201638B (en) | 1989-02-02 |
| GB8703339D0 (en) | 1987-03-18 |
| FR2594385A1 (en) | 1987-08-21 |
| ES556499A0 (en) | 1987-07-16 |
| ES8707145A1 (en) | 1987-07-16 |
| DE3604630A1 (en) | 1987-08-27 |
| IT8607045V0 (en) | 1986-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |