| Patents for B21H 1 - Making articles shaped as bodies of revolution (2,244) |
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| 10/07/2009 | CN100546759C Rolling formation method for large and medium size solid plate-shape forge piece |
| 10/01/2009 | WO2009120397A1 Method of producing a stepped shaft |
| 09/30/2009 | EP1909991B1 Ring rolling from metal blanks |
| 09/30/2009 | CN201316781Y Novel support roller of cold ring rolling machine |
| 09/23/2009 | EP2103826A1 Manufacturing method for bearing outer ring |
| 09/23/2009 | CN201313147Y Anchor bar rolling machine |
| 09/23/2009 | CN101537466A Method for manufacturing aluminium alloy rings with high performance and low residual stress |
| 09/17/2009 | WO2009113476A1 Method of manufacturing outer ring, outer ring for double row angular contact bearing, double row angular contact bearing, and bearing device for wheel |
| 09/16/2009 | CN201308955Y Forming device for bridge tray type support copper sealing rings |
| 09/02/2009 | CN100534660C Semi-sank large precise ring rolling machine |
| 08/27/2009 | US20090211323 Method of Forming a Circular Sheet-Metal Blank |
| 08/19/2009 | CN201291278Y Large flanged forming device |
| 08/13/2009 | US20090199924 Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method |
| 08/13/2009 | DE102008028379B3 Tension rolling device for circular saw blade, has generator formed by electric motor, where transmission force of motor acts on system and acts against operating pressure such that rolls are vertically engaged at distance together |
| 08/12/2009 | CN101506391A Method for the thermomechanical treatment of seamless rings produced on radial-axial ring rolling machines |
| 07/15/2009 | EP2078099A1 Method for the thermomechanical treatment of seamless rings produced on radial-axial ring rolling machines |
| 07/15/2009 | CN101480688A Three-wheel roll forging machine for ring piece |
| 07/01/2009 | CN100506422C Flange of wind power generation tower barrel forging shaping process |
| 06/25/2009 | WO2009078337A1 Double-row angular bearing, bearing device for wheel, method of producing outer ring, and method of producing inner ring |
| 06/25/2009 | US20090158590 Wheel manufacturing method |
| 06/24/2009 | CN101466486A Method and apparatus for processing a preform for a rim, and rim |
| 06/24/2009 | CN100503277C Rim having a non-uniform thickness and a method for manufacturing the rim |
| 06/04/2009 | WO2009067961A1 Method of manufacturing of ball bearing's rings by rolling-out of the blanks from bearing's steel using a roll-out machine |
| 05/27/2009 | CN101439384A Technique for rolling multiple-variety multiple-station spline threaded shaft |
| 05/26/2009 | US7536895 Deformed forging |
| 05/20/2009 | CN101433916A Mandrel power mechanism for cold rolling machine |
| 05/14/2009 | WO2009059723A1 Ring roller |
| 05/14/2009 | US20090120152 Ring rolling from metal blanks |
| 05/13/2009 | EP1871552A4 Knife blade dressing apparatus |
| 05/13/2009 | CN100486754C Rolling forming process for large hollow disc forging |
| 05/06/2009 | CN100484696C Forging and rolling technology and hot rolling and forging apparatus for making large pulley |
| 04/30/2009 | US20090106980 Process for Producing Bearing Device for Wheel |
| 04/29/2009 | CN101417379A Tapered roller bearing ring double extension-sleeve forging technique |
| 04/29/2009 | CN101417310A Multifunctional ring rolling machine |
| 04/28/2009 | US7523555 Wheel manufacturing method |
| 04/22/2009 | CN100479976C Process of making integral automobile wheel |
| 04/15/2009 | CN101410641A Forged roller |
| 04/15/2009 | CN101410193A Ring rolling mill and ring rolling method |
| 04/15/2009 | CN101406922A Method for producing grinding ball and rotary cutting and roll forging machine for producing grinding ball |
| 04/08/2009 | CN201217047Y Apparatus for processing positive displacement drill bearing |
| 04/08/2009 | CN101402163A Bearing ferrule workblank triple external member smithing and molding process |
| 04/01/2009 | CN201215121Y Hydraulic controller for horizontal flange ring rolling mill |
| 04/01/2009 | CN201215120Y Hydraulic system for flange ring rolling mill |
| 04/01/2009 | CN201214132Y Flange ring rolling mill with distance measurer |
| 04/01/2009 | CN201214131Y Flange ring rolling mill with holding roller centering synchronous device |
| 04/01/2009 | CN201214130Y Light-duty vertical type flange ring rolling mill |
| 04/01/2009 | CN201214129Y Holding roller centering synchronous device of flange ring rolling mill |
| 04/01/2009 | CN201214128Y Flange ring rolling mill with position limiter |
| 04/01/2009 | CN201214127Y Self-adjustment apparatus of flange ring rolling mill spindle box |
| 03/28/2009 | CA2639865A1 Circular-shaping device for a rotating part, especially an exhaust housing of a turbo engine |
| 03/25/2009 | CN201211546Y Abrasion-proof apparatus of precision cold ring rolls |
| 03/25/2009 | CN201211530Y Position controller of guide roller in cold ring rolling mill |
| 03/25/2009 | CN100471597C Ball forming mechanism of ball rolling machine |
| 03/18/2009 | CN100469485C Manufacture of metal sheet back face pulley |
| 03/12/2009 | DE102008038827A1 Method for manufacture of split bearing race for angular contact roller bearing, involves bifurcating annular blank along annular portions having higher thickness so that bearing race portions are formed |
| 03/11/2009 | CN101380640A Bearing steel ball-cog intermediate-frequency heating continuous rolling device |
| 03/11/2009 | CN100467146C Rolling machine |
| 03/04/2009 | EP2030703A1 Method and device for transverse rolling of stepped hollow shafts or cylindrical hollow pieces from a pipe |
| 03/04/2009 | CN201201023Y Machine for rolling and forming surface of revolution |
| 02/25/2009 | CN100463739C Inner step profile section ring parts rolling forming method |
| 02/18/2009 | EP2024111A1 Device and method for producing profiled bodies |
| 02/18/2009 | CN201195191Y Multifunctional ring roller |
| 02/12/2009 | US20090038157 Cold forming process for manufacturing ball pivots |
| 02/11/2009 | EP2021138A1 Method and apparatus for processing a preform for a rim, and rim |
| 02/05/2009 | DE10041911B4 Diamantbohrkrone Diamond core bit |
| 02/04/2009 | CN100457334C Method of flow forming a metal part |
| 02/04/2009 | CN100457318C Plate type wedge lateral rolling forming method for eccentric stepped shaft |
| 02/03/2009 | CA2399102C Component with a hub, and non-cutting production method therefor |
| 01/28/2009 | CN100455376C Manufacture of sheet metal back face pulley |
| 01/27/2009 | US7481142 Cutting workstation |
| 01/27/2009 | US7481141 Cutting workstation |
| 01/21/2009 | EP1909990B1 Method and device for producing metal rings |
| 01/15/2009 | DE19823460B4 Mehrscheibenkupplung sowie Verfahren und Vorrichtung zur Formgebung einer Kupplungstrommel Multi-plate clutch and method and apparatus for forming a clutch drum |
| 01/13/2009 | US7475581 Method of increasing the control precision of the path of a product in a levelling machine with interlocking rollers, and levelling installation used to implement same |
| 01/07/2009 | CN101337312A Hardware ball-head forming technique |
| 01/07/2009 | CN101337256A Aluminum alloy ring piece rolling technique and device |
| 01/07/2009 | CN100448567C Apparatus for cold rolling copper ball |
| 01/07/2009 | CN100448564C Adaptable mandrel for spin forming |
| 12/31/2008 | CN201172095Y Double ended rolling forming device |
| 12/31/2008 | CN100446967C Method and device for manufacturing support body for run flat |
| 12/24/2008 | EP2004345A1 Method of forming steel ball blanks, in particular for rolling bearings |
| 12/17/2008 | CN201164894Y Cold rolling roundness roller adjusting apparatus |
| 12/17/2008 | CN101323005A Accurate thermoforming rubbing-grinding machine for processing shaft products |
| 12/10/2008 | EP2000224A1 Ring rolling mill and ring rolling method |
| 12/10/2008 | CN201161276Y Apparatus for rolling surface of dish shaped forgeable piece |
| 12/10/2008 | CN201161275Y Cone-shaped roll for rolling dish shaped forgeable piece |
| 12/10/2008 | CN101318208A Method and apparatus of fabricating a photosensitive drum or fixing belt |
| 12/09/2008 | CA2454461C Crankshaft damper with integral pulse ring and method for production |
| 11/27/2008 | WO2008142214A2 A method for forming a coiler drum for a hot rolling apparatus and a coiler drum |
| 11/26/2008 | CN100435999C Multi-wedge synchronizing smooth butte rolling method for rolling same diameter axle type pieces by cross wedge rolling |
| 11/26/2008 | CN100435989C Automatic guide-board in-out apparatus of roller-type split wedge transverse miller |
| 11/19/2008 | CN201150934Y Spindle power set for cold rolling device |
| 11/13/2008 | DE102007003772B4 Festwalzrollenkopf eines Festwalzwerkzeugs zum Festwalzen von Kurbelwellen Deep rolling head a deep rolling tool for deep rolling of crankshafts |
| 11/12/2008 | CN201147813Y General purpose bearing ferrule processing die with adjustable rolling wheel height |
| 11/12/2008 | CN201147812Y Backing roll control device for cold rolling machine |
| 11/12/2008 | CN101301717A Method for producing PCB electronic circuit board level phos-copper ball |
| 10/29/2008 | CN101293316A Method and apparatus for processing positive displacement drill bearing |
| 10/23/2008 | WO2006017260A3 Forged roller |
| 10/23/2008 | DE60223924T2 Kurbelwellendämpfer mit integrierter indexscheibe und herstellverfahren dafür Crankshaft damper with integrated disc-index and manufacturing processes for |
| 10/15/2008 | CN201132198Y Backing roll control device of rolling mill |