Patents by Inventor Hans-Juergen Friedrich

Hans-Juergen Friedrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200256389
    Abstract: A sheet metal bearing cage segment includes first and second ring sections, bridges connecting the ring sections to form pockets for rolling elements and a circumferentially facing joint edge configured to be connected to another circumferentially facing joint edge. The joint edge is disposed such that it will be located in one of the bridges after the joint edge is connected to the another circumferentially facing joint edge.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Publication number: 20200256388
    Abstract: A sheet metal bearing cage segment includes a first ring section, at least one second ring section and a plurality of bridges connecting the first and second ring sections and forming pockets for receiving at least one rolling element. The first ring section and/or the at least one second ring section includes a circumferentially facing joint edge configured to be connected to another circumferentially facing joint edge to form a to-be-formed pocket. The joint is spaced from the plurality of bridges, and the joint edge is formed by laser cutting. The joint edge may include a chamfer on a radially outer side and/or on a radially inner side.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Publication number: 20200256387
    Abstract: A bearing cage segment of a sheet metal cage includes first and second sheet metal ring sections and bridges therebetween defining a plurality of pockets for receiving rolling elements. A first circumferential joint edge of the segment is configured to connect to a second circumferential joint edge of the segment or to a second joint edge of another segment, and the first joint edge includes at least one alignment element, such as a projection or contour, that is configured to align the first joint edge radially, axially and/or circumferentially against the second joint edge which may include a complementary alignment element such as a recess or complementary contour.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Publication number: 20200256390
    Abstract: A sheet metal bearing cage segment includes a first sheet metal ring section, at least one second sheet metal ring section, and a plurality of bridges connecting the first ring section and the at least one second ring section to each other, adjacent pairs of the bridges forming pockets configured to receive at least one rolling element. At least one edge of the first ring section and/or at least one edge of the at least one second ring section and/or of one of the bridges is at least partially formed by laser cutting. Also a method of forming a sheet metal bearing cage at least partially by laser cutting.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Publication number: 20200256391
    Abstract: A sheet metal bearing cage segment includes a first ring section, at least one second ring section, and a plurality of bridges connecting the first and second ring sections to each other and defining a plurality of pockets between the bridges. The bearing cage segment includes first and second circumferentially directed joint edges, the first joint edge is configured to connect to the second joint edge of the bearing cage segment or to a second joint edge of another sheet metal bearing cage segment, and the first joint edge includes at least one body of welding material projecting from the joint edge. The body of welding material may be pressed against the second joint edge while leaving a gap between the joint edges, and the welding material can be liquified by a resistance welding process to connect the joint edges.
    Type: Application
    Filed: February 3, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Publication number: 20200256392
    Abstract: A sheet-metal bearing cage segment has a first ring section, at least one second ring section and a plurality of bridges connecting the first ring section and the at least one second ring section to each other such that a pocket for receiving at least one rolling element is formed between each circumferentially adjacent pair of the bridges. The first and/or second ring section includes at least one recess on the radially inner side and/or the radially outer side.
    Type: Application
    Filed: February 3, 2020
    Publication date: August 13, 2020
    Inventors: Hans-Juergen Friedrich, Norbert Huhn, Thomas Kettner, Manfred Mattes, Harald Metz, Achim Mueller, Alfred Radina, Jonas Schierling, Maximilian Soellner, Markus Volkmuth
  • Patent number: 10619671
    Abstract: A rolling-element bearing cage includes a first side ring and a second side ring connected to the first side ring by a plurality of bridges defining a plurality of pockets configured to receive a rolling-element. The first side ring includes a joint at which the first side ring is configured to be opened to increase a diameter of the first side ring, and the first side ring and the second side ring and the plurality of bridges are made of steel and an outer diameter of the second side ring is greater than 500 mm.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Sabine Hofmann, Holger Kristandt, Alfred Radina, Jonas Schierling, Gerhard Wagner
  • Patent number: 10598224
    Abstract: A bearing cage segment for a rolling-element bearing includes at least one sliding surface on which a surface of at least one rolling element of the rolling-element bearing is rotatable, a first support element, such as an axial projection on an axial side of the cage segment having a radially open radially facing channel, at a first radial position for supporting a first band section of a band clamp during an assembling of the rolling-element bearing, and at least one second support element at a second radial position different from the first radial position for supporting a second band section of the band clamp.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 24, 2020
    Inventors: Hans-Juergen Friedrich, Alfred Radina, Juergen Reichert, Gerhard Wagner
  • Patent number: 10436246
    Abstract: A bearing support includes at least one sliding bearing defined by the bearing support and/or at least one rolling-element bearing having an outer raceway defined by the bearing support. The bearing support is formed from a fiber-plastic composite and includes an integrally formed sliding surface of the sliding bearing and/or an integrally formed raceway for rolling elements of the rolling-element bearing, and the fiber-plastic composite includes a matrix into which spatially oriented sliding fibers, for example, PTFE fibers, are embedded in a region of the sliding surface of the sliding bearing and/or a region of the raceway of the rolling-element bearing.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 8, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Thomas Heege, Hans-Juergen Friedrich, Helmut Hauck, Andreas Klopf, Michael Tschirschwitz, Juergen Weiglein
  • Publication number: 20190010986
    Abstract: A method for attaching a bearing carrier having an opening to an outer ring of a bearing includes placing the bearing carrier against a first body that is not the outer ring of the bearing, pressing the first body against a first location on the bearing carrier with a force having a radial component to increase a width of the opening of the bearing carrier, placing the opening of the bearing carrier on the outer ring of the bearing while maintaining the force, and releasing the force after placing the bearing carrier on the outer ring.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 10, 2019
    Inventors: Hans-Juergen Friedrich, Berthold Beyfuss, Alfred Radina, Maximilian Soellner, Stefan Volpert
  • Patent number: 9925610
    Abstract: A method for installing a first machine part into a second machine part includes press fitting the first machine part into the second machine part in its intended final position. The method also includes disposing an exothermically reactive substance on or in the first machine part and activating the exothermically reactive substance to cause a thermal structural change, stress relief, for example, in a part of the first machine part.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: March 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hans-Juergen Friedrich, Helmut Hauck
  • Publication number: 20170307008
    Abstract: A bearing support includes at least one sliding bearing defined by the bearing support and/or at least one rolling-element bearing having an outer raceway defined by the bearing support. The bearing support is formed from a fiber-plastic composite and includes an integrally formed sliding surface of the sliding bearing and/or an integrally formed raceway for rolling elements of the rolling-element bearing, and the fiber-plastic composite includes a matrix into which spatially oriented sliding fibers, for example, PTFE fibers, are embedded in a region of the sliding surface of the sliding bearing and/or a region of the raceway of the rolling-element bearing.
    Type: Application
    Filed: October 5, 2015
    Publication date: October 26, 2017
    Inventors: Thomas Heege, Hans-Juergen Friedrich, Helmut Hauck, Andreas Klopf, Michael Tschirschwitz, Juergen Weiglein
  • Publication number: 20170307016
    Abstract: A bearing cage segment for a rolling-element bearing includes at least one sliding surface on which a surface of at least one rolling element of the rolling-element bearing is rotatable, a first support element, such as an axial projection on an axial side of the cage segment having a radially open radially facing channel, at a first radial position for supporting a first band section of a band clamp during an assembling of the rolling-element bearing, and at least one second support element at a second radial position different from the first radial position for supporting a second band section of the band clamp.
    Type: Application
    Filed: September 29, 2015
    Publication date: October 26, 2017
    Applicant: Aktiebolaget SKF
    Inventors: Hans-Juergen Friedrich, Alfred Radina, Juergen Reichert, Gerhard Wagner
  • Patent number: 9702403
    Abstract: A non-locating bearing assembly is configured to rotatably support a shaft relative to a housing while permitting relative axial displacement of the shaft relative to the housing. The bearing assembly includes a bearing having inner and outer rings and that is configured for transmitting radial and axial forces, and a bearing support attachable to the housing and including a support section having a partially cylindrical seat surface for receiving one of the inner and outer bearing rings and forming a sliding seat therefor. The sliding seat allows a relative axial displacement between the support section and one of the inner and outer bearing rings. A spring is disposed on or in the bearing support for generating a force in the axial direction between the bearing support and the one of the inner and outer bearing rings, and the spring element is formed from a segment of the bearing support.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 11, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Burkard Beck, Alexander Dilje, Hans-Juergen Friedrich, Helmut Hauck
  • Patent number: 9644682
    Abstract: A rolling-element bearing assembly includes a bearing ring and a flange. The bearing ring has a surface including at least one circumferential groove extending at least partially around the bearing ring, and the flange projects radially inwardly or radially outwardly from the surface and has a flange section at a radially inner edge or radially outer edge of the flange that projects into the groove. A hardened casting material secures the flange to the surface.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 9, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Burkard Beck, Alexander Dilje, Hans-Juergen Friedrich, Helmut Hauck
  • Publication number: 20170108044
    Abstract: A rolling-element bearing cage includes a first side ring and a second side ring connected to the first side ring by a plurality of bridges defining a plurality of pockets configured to receive a rolling-element. The first side ring includes a joint at which the first side ring is configured to be opened to increase a diameter of the first side ring, and the first side ring and the second side ring and the plurality of bridges are made of steel and an outer diameter of the second side ring is greater than 500 mm.
    Type: Application
    Filed: March 20, 2015
    Publication date: April 20, 2017
    Applicant: Aktiebolaget SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Sabine Hofmann, Holger Kristandt, Alfred Radina, Jonas Schierling, Gerhard Wagner
  • Patent number: 9347490
    Abstract: A roller bearing cage includes the following features: The cage comprises an annular circumferential element, from which bridge elements branch off, roller bodies of the roller bearing being disposable between the bridge elements, the circumferential element comprises a plurality of uniform section elements, and the initially-loose section elements and bridge elements are connected with each other to form the cage.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: May 24, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-J├╝rgen Friedrich, Alfred Radina, Jonas Schierling
  • Publication number: 20160010693
    Abstract: A rolling-element bearing assembly includes a bearing ring and a flange. The bearing ring has a surface including at least one circumferential groove extending at least partially around the bearing ring, and the flange projects radially inwardly or radially outwardly from the surface and has a flange section at a radially inner edge or radially outer edge of the flange that projects into the groove. A hardened casting material secures the flange to the surface.
    Type: Application
    Filed: December 17, 2013
    Publication date: January 14, 2016
    Inventors: Burkard BECK, Alexander DILJE, Hans-Juergen FRIEDRICH, Helmut HAUCK
  • Patent number: 9222518
    Abstract: A centering assembly (100; 200; 400) serves to center a bearing ring (123; 423) in a circular opening (111) of a holding element (110; 210; 510; 610). The centering assembly (100; 200; 400) includes at least three centering elements (101; 201; 301; 401; 501; 601) that are each elastically deformable in the radial direction of the bearing ring. The centering elements (101; 201; 301; 401; 501; 601) are respectively disposed in recesses (114; 214; 514; 614) defined around a circumferential edge of the circular opening. The centering elements urge the bearing ring to be centered relative to the holding element.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: December 29, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Alfred Radina, Jonas Schierling
  • Patent number: 9217470
    Abstract: A bearing cage for a rolling-element bearing includes a plurality of bearing cage segments configured to receive rolling elements in rolling-element pockets. Also included is at least one assembly wire, and each of the cage segments includes a coupling arrangement configured to thread the bearing cage segment onto the at least one assembly wire such that at least one rolling-element pocket is formed by two of the plurality of bearing cage segments adjacent in the circumferential direction that are threaded on the assembly wire. The bearing cage also includes an assembly device configured to convey an end of the assembly wire from an installation position to an axially far-side coupling arrangement of a bearing cage segment, through the axially far-side coupling arrangement of all bearing cage segments located on a bearing inner ring, and back again towards the installation position.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: December 22, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Burkard Beck, Holger Kristandt, Winfried Oestreicher, Gerhard Wagner, Juergen Weiglein, Hans-Juergen Friedrich, Alfred Radina