Heavy Metal Or Aluminum Compound (e.g., Mos2,etc.) Patents (Class 508/108)
  • Patent number: 5960250
    Abstract: Bearing materials used for rolling bearings, such as roller bearings and ball bearings, and in particular, a bearing material having an extended rolling contact fatigue life.A bearing material having an extended rolling contact fatigue life comprises: 0.95 to 1.10 mass % of C, 0.15 to 0.70 mass % of Si, 1.15 mass % or less of Mn, 0.90 to 1.60 mass % of Cr and 0.025 mass % or less of P, and further 0.025 mass % or less of S and 0.0012 mass % or less of O as elements forming nonmetal inclusions, and the balance being Fe and incidental impurities, and the bearing material further contains 0.020 mass % or less of AlN, or the number of nonmetal sulfide inclusions each having a thickness of 1 .mu.m or more is 1,200 or less in an observation area of 320 mm.sup.2 for further extending the rolling contact fatigue life.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: September 28, 1999
    Assignees: Kawasaki Steel Corporation, Koyo Seiko Co., Ltd.
    Inventors: Satosi Yasumoto, Tosiyuki Hosino, Keniti Amano, Atsuhiko Ohta, Michiro Hamanoue
  • Patent number: 5958846
    Abstract: A solid lubricant, in particular for friction linings, on the basis of metal sulphides, which contains or consists of at least one compound of the formulaM1M2.sub.m M3.sub.n S.sub.xwherein M1, M2, and M3 each represent one metal of the series of Ti, V, Mn, Fe, Cu, Zn, Mo, W, Sb, Sn and Bi, S denotes sulphur, and the subscripts comprise the ranges of I=1-5, m=1-5, n=0-5 and x=2-8, as well as friction lining mixtures and friction linings containing the same.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: September 28, 1999
    Assignee: Chemetall Ges. m.b.H.
    Inventor: Michael Geringer
  • Patent number: 5921126
    Abstract: A metalworking die has a soft metal plating on its contact surfaces. The plating produces a continuous lubricant supply which is only depleted slowly when employed in a hot metalworking operation. In forming a near-net-shape part using this die, the metalworking piece is coated with a glass lubricant. A temporary lubricant of graphite is also sprayed on the coated die.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 13, 1999
    Assignee: General Electric Company
    Inventor: Mark Lloyd Miller
  • Patent number: 5856278
    Abstract: A friction material especially for use in conjunction with aluminum alloy brake rotors containing silicon carbide particles contains 15 to 80% of a finely divided alumina abrasive, from 5 to 40% of cured organic binder, less than 5% metal in particulate form and less than 5% particulate carbon and/or graphite, from 1 to 40% of organic fiber the balance being particulate inert filler and optionally, a non-graphitic lubricant, all percentages being by volume.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: January 5, 1999
    Assignee: Ferodo Limited
    Inventor: Anthony J. Brewer
  • Patent number: 5840666
    Abstract: A grease composition comprising a base oil, a thickener selected from a metallic soap and a urea compound, and an inorganic filler having an average particle size of not greater than 2 .mu.m, and a rolling bearing having sealed therein a grease composition comprising a base oil, a urea thickener, and an inorganic filler having an average particle size of not greater than 2 .mu.m.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 24, 1998
    Assignee: NSK Ltd.
    Inventors: Atsushi Yokouchi, Hideki Koizumi, Kenichi Iso, Michiharu Naka
  • Patent number: 5792717
    Abstract: Sliding material comprising a porous ceramic body that has the open pores filled with a high water absorbing resin, preferably to an open pores porosity of ca. 5-15%. The sliding material may be used to fabricate members of the stationary part of a journal bearing in a pump for use in both a fluid and a gaseous atmosphere; members of the rotating part of the bearing are formed of a cemented hard alloy. Since the resin absorbs and retains water, the sliding material will exhibit satisfactory performance even if it is exposed to a gaseous atmosphere without lubrication. Consistent sliding performance is insured not only in fresh water but also in fluids such as slurries that contain hard solid matter.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: August 11, 1998
    Assignee: Ebara Corporation
    Inventor: Hirokazu Takayama
  • Patent number: 5741762
    Abstract: Lubricated rolling contact devices, especially full ceramic or hybrid ceramic rolling bearings, are designed so that the ceramic contact surface or surfaces are coated with a thin film formed from titanium dioxide in anatase form. The titanium dioxide film can be applied from a composition including particles of the titanium dioxide in grease or oil.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: April 21, 1998
    Assignee: SKF Nova AB
    Inventor: Lars Kahlman
  • Patent number: 5732322
    Abstract: The disclosure describes a resin composition for a sliding member, comprising 1 to 25 wt % of component A selected from the group consisting of phosphates and barium sulfate, 1 to 15 wt % of component B selected from the group consisting of magnesium silicate and mica, and 5 to 50 wt % of component C selected from the group consisting of lead, tin, lead-tin alloy and mixtures thereof, the balance of polytetrafluoroethylene.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 24, 1998
    Assignee: Oiles Corporation
    Inventors: Takashi Nakamaru, Sumihide Yanase, Akihiko Okimura
  • Patent number: 5656582
    Abstract: The rust preventive lubricating oil of the present invention concerns a base oil and a rust-preventive agent in an amount of 2-20% by weight on the basis of the whole rust preventive lubricating oil, wherein the base oil contains an ether oil in an amount of at least 20% by weight on the basis of the whole rust preventive lubricating oil. The rust preventive lubricating oil can be applied to the surface of raceway tracks of inner and outer rings, cages for bearings, as well as to bearings, to prevent development of rust, to inhibit generation of cage sound, and to obtain good lubricity, while retaining good compatibility with a grease to be later charged.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: August 12, 1997
    Assignee: NSK Limited
    Inventors: Emiko Shiraishi, Hiroyuki Ito, Masao Yamamoto, Michiharu Naka, Akira Suzuki, Shigeki Maehara
  • Patent number: 5635299
    Abstract: A sliding member usable in dry and wet states includes a synthetic resin coated filler powder composition obtained by polymerizing a polyethylene based composition in the presence of a filler having a friction-reducing and/or wear-resisting property, uniformly dispersed in a matrix made of a waterproof synthetic resin, and optionally a reinforcing material as needed.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 3, 1997
    Assignee: Tsubakimoto Chain Co.
    Inventor: Kouji Tanaka
  • Patent number: 5631211
    Abstract: Lubricating oil composition for use with sintered porous bearings includes a poly-.alpha.-olefin hydride or ethylene-.alpha.-olefin copolymer hydride containing base oil to which at least one additive selected from the group consisting of zinc dialkyl dithiophosphate, molybdenum dialkyl dithiocarbide, molybdenum dialkyl dithiophosphate and a sulfur-phosphorus containing extreme pressure additive is added in an amount of 0.01 to 5 parts by weight per 100 parts by weight of the base oil.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: May 20, 1997
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Hisaya Nakagawa, Michiaki Takizawa, Teruhiko Ohtaki, Katsumi Nagano, Masuhiro Onoyama, Tetsuo Ichimaru
  • Patent number: 5624887
    Abstract: Multilayered sliding members made of a lubricating composition containing polytetrafluoroethylene and 1 to 40 wt % of zinc oxide whiskers as a filler; and a porous sintered metal layer formed on a steel backing are disclosed, in which the lubricating composition is impregnated in and coated on the porous sintered metal layer.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: April 29, 1997
    Assignee: Oiles Corporation
    Inventors: Takashi Nakamaru, Tadashi Watai, Akihiko Okimura, Sumihide Yanase
  • Patent number: 5622785
    Abstract: A coating for reducing brake pad noise is provided that includes about 40 to about 90% by weight of a phenolic thermosetting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and, 0 to about 40% by weight of fillers and pigments. The coating is applied to a brake pad and cured. A method for reducing brake noise is also provided which includes the steps of coating a brake pad surface with a coating including about 40 to about 90% by weight of a phenolic thermosetting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and 0 to about 40% by weight of fillers and pigments, and curing the coating.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 22, 1997
    Assignee: Performance Friction Corporation
    Inventors: Dennis A. Gaylor, Donald L. Burgoon
  • Patent number: 5538649
    Abstract: A composition of matter for use in tribological applications, such as in mechanical seals, bearings and other sliding or rubbing components, which provides good durability and wear characteristics. The material is used in the "softer" one of two relatively sliding members which are in, or may come into, contact with each other during the relative rotation of one of the member s relative to the other. The material is a carbon or carbonaceous formed material, such as is normally used in the manufacture of a primary seal ring in a mechanical seal, and comprises an additive compound which contains at least one compound from a group consisting of neodymium fluoride, praseodymium fluoride, gadolinium fluoride and lanthanum fluoride.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: July 23, 1996
    Assignee: John Crane Inc.
    Inventors: Joseph F. Demendi, Philippe R. Malle, Yannick A. Le Neve, Xin Chen, William R. Clemens