Lubricant Distributing Patents (Class 384/286)
  • Patent number: 5281033
    Abstract: A housed bearing assembly suitable for use as a pillow block bearing unit or flanged bearing unit. The assembly includes a shaft sleeve and roller body secured to one another and enclosed by a housing. The roller body is adapted to roll against an inner peripheral surface of the housing. A supply of lubricant sufficient to lubricate the roller body is contained within the housing. The housing and rolling body are designed to direct lubricant toward fluid tight areas of the assembly and away from those areas where leakage might occur. A lubricant containment reservoir is formed in either the housing or the shaft such that lubricant will not reach the space or interface between the shaft and the housing. The roller body may be provided with a drip edge to further direct lubricant away from the interface between the housing and the shaft. The housing is constructed as a spherical segment seated in a spherical seat to allow pivoting of the inner housing portion to pivot to adjust for misalignment.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: January 25, 1994
    Inventor: Russell D. Ide
  • Patent number: 5281035
    Abstract: An improvement in the leak proof construction and the rotating shaft attachment means for an oil-containing bearing includes a plurality of oil-storing grooves formed on the oil-containing bearing such that the lubricant oil required by the rotation of the rotating shaft can be received and contained therein. On an outlet portion of the rotating shaft and the oil-containing bearing, there is provided an oil guiding plate which rotates with the rotating shaft. The lubricant oil escaping along the rotating shaft will be expelled by the oil guiding plate into the oil-storing grooves of the oil containing bearing by the centrifugal force generated by the rotation of the oil guiding plate.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: January 25, 1994
    Assignee: Delta Electronics, Inc.
    Inventor: Jansen Lo
  • Patent number: 5232069
    Abstract: Grease fittings are disclosed for insertion in a bore extending through the wall of a wheel hub to direct grease into the interior of the wheel hub. The grease fitting is shaped for secure seating on the hub, for easy and rapid insertion into the boreand for securing it in the threadless bore. A second embodiment includes a grease fitting plug for insertion in a bore extending through the wall of a wheel hub wherein the grease fitting plug is shaped to be securely seated on the hub and securely mounted in the threadless bore.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: August 3, 1993
    Assignee: MTD Products Inc.
    Inventor: Rudolf Siegrist
  • Patent number: 5112145
    Abstract: A prefinished piston pin insert bearing wherein the radial clearances required for acceptable bearing function are maintained in spite of the tolerance required for assembly through a combination of inner bearing surface geometry and related structure for retaining the bearing against axial and rotational movement. The interior bearing geometry is formed of radii equal to that of the piston pin which are offset vertically into the upper and lower bearings to generate a load bearing surface thereon and of radii offset horizontally and of sufficient length to provide assembly clearance for the piston pin and a load bearing surface of approximately 120.degree. to 150.degree.. The bearings are retained against movement through connections with the piston head, the piston skirt, and between the various bearing pieces. Means are also provided for feeding oil under pressure to the piston pin and bearing interface for lubrication and to the piston assembly for cooling.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: May 12, 1992
    Assignee: Detroit Diesel Corporation
    Inventor: James W. MacGregor
  • Patent number: 5094548
    Abstract: A composite and self-lubricating bushing comprises a monolithic steel body having a machined internal cylindrical surface and a porous bearing layer applied to the surface. The porous bearing layer is formed by compacting and sintering a particulate bearing material. The steel body may also include a cavity for storing lubricant and at least one passageway extending between the cavity and the internal cylindrical surface. The bushing may be fabricated by positioning the steel body concentrically over an elastomeric plug, charging the annular cavity between the body and the plug with a sinterable particulate, expanding the elastomeric plug diametrically to compact the particulate, removing the plug and heating the bearing body and compacted particulate.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: March 10, 1992
    Assignee: Danly Corporation
    Inventor: James C. Danly, Sr.
  • Patent number: 5072654
    Abstract: A novel prefinished piston pin insert bearing is described wherein the tight radial clearances required for acceptable bearing function are maintained in spite of the tolerances required for assembly through a unique inner bearing surface geometry and through a unique methodology of bearing retention against axial and rotational movement. The interior bearing geometry is formed of radii equal to that of the piston pin which are offset vertically into the upper and lower bearings and of radii of nonspecific size which are offset horizontally. The bearings are retained against movement through connections with the piston head, the piston skirt, and between the various bearing pieces. Means are also provided for feeding oil under pressure to the piston pin and bearing interface for lubrication and to the piston assembly for cooling.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: December 17, 1991
    Assignee: Detroit Diesel Corporation
    Inventor: James W. MacGregor
  • Patent number: 5056938
    Abstract: A track roller bearing having a floating sleeve between the inner race and outer race. The floating sleeve has a self-lubricating bearing material on its outer surface. The coefficient of friction of the self-lubricating bearing material increases as the material is worn. When the self-lubricating bearing material coefficient of friction exceeds the coefficient of friction of the floating sleeve inner surface, the floating sleeve will rotate with the outer race until a new unworn surface of self-lubricating bearing material is presented to the load area of the outer race. This precessing of the floating sleeve will continue until the entire surface area of the self-lubricating bearing material is worn, thus extending the track roller bearing life.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: October 15, 1991
    Assignee: The Torrington Company
    Inventors: S. Robert Ahlman, William E. Dunn, Harry Magazian
  • Patent number: 4971459
    Abstract: A bearing arrangement wherein a shaft of uniform diameter is supported in a journal bearing having multiple sections located axially along said shaft at different locations. Each journal bearing section includes a circular journal bore receiving the shaft with the axis of said journal bores being parallel and displaced relative to each other and to the axis of the enclosed shaft in a plane normal to the axis of the shaft.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: November 20, 1990
    Assignee: Ingersoll-Rand Company
    Inventor: John M. McKenna
  • Patent number: 4838389
    Abstract: The invention relates to a protective device of drum-brake operating shafts of trucks and touring trailers. This device is essentially constituted by a protective sleeve (4) mounted on the bushing (5) of the operating shaft (1) of the clearance cam (3) of the brake shoes. This sleeve (4), extended up to the operating lever (2), comprises a packing (6) at each one of the extremities of its bore. The axis of the bore (4d) is upwardly offset in relation to the axis of the sleeve (4), of a distance X corresponding to one half of the clearance arranged between the shaft (1) and the bore (4d). A sectoral wearing plate (10) is disposed at the lower portion of the bore (4d). The sleeve (4) is mounted at the connecting bridge (8) by an annular collar (4a) with an indexing key (4b) and of the housing (9), existing at the beginning, or of a tab molded with the sleeve (4).
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: June 13, 1989
    Inventor: Gaby Mamery
  • Patent number: 4836695
    Abstract: A composite sliding surface bearing consisting of a backing layer of steel, a bearing alloy layer which consists of aluminum and has been applied to said backing layer, and a sliding surface layer which consists of zinc phosphate and has been deposited on said bearing alloy layer. The backing layer of steel is provided on its outside surface in a thickness between 0.5 and 5 .mu.m with a metallic protective layer in order to ensure a firm retention in the bearing housing.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: June 6, 1989
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Hans-Paul Baureis, Wolfgang Bickle, Wilhelm Lankreijer
  • Patent number: 4768888
    Abstract: A bearing system for a motor (10) having a housing (20) and a rotor shaft (25). The bearing system includes a first unitary bearing member (31) located proximate to a first end (17) of the motor (10), and rotatably receiving the rotor shaft (25). The first bearing member (31) has a body region (40), first and second outer radial alignment surfaces (35, 36) for aligning the body region (40) relative to the housing (20), a radial bearing surface (45) for resisting radial forces from the rotor shaft (25) and an axial bearing surface (54) for resisting axial forces in a first direction. A flange (33) secures the first bearing member (31) to the housing (20). A first bearing plate (56) is fixed to the rotor shaft (25) for rotation therewith. The first bearing plate (56) is positioned in opposition to the axial bearing surface (54) of the first bearing member (31).
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: September 6, 1988
    Assignee: McNeil (Ohio) Corporation
    Inventor: Michael H. McNaull
  • Patent number: 4747705
    Abstract: A fixed shape hydrodynamic journal bearing 10 is provided having a plurality of pads 18, each pad having a peak 22, a trough 20, and a curve 24 connecting the peak and the trough, the curve being defined by the equation: h=r+s (1-.theta..sub.1 /.theta..sub.2).sup..alpha..
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: May 31, 1988
    Assignee: United Technologies Corporation
    Inventor: Giridhari L. Agrawal
  • Patent number: 4729248
    Abstract: A lever arrangement comprises a bearing pin and a supply space arranged next to the bearing opening of at least one of the levers and which contains a high-viscosity lubricant. In the operation of the lever arrangement with alternating tilting direction, the lubricant arrives, due to its inertia, in the respectively unstressed part of the bearing gap between the levers. The arrangement is suited particularly for highly stressed parts in the mechanism of circuit breakers which must be designed for space saving due to the small space available. The service life of such lever arrangements is increased substantially by arranging the lubricant in the supply space. The supply space can be part of a sleeve braced on the bearing pin.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: March 8, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ludvik Godesa
  • Patent number: 4693617
    Abstract: A slider bearing assembly has a bearing housing having a bore centered on an axis and having an inside bore surface and a uniform composition plain bearing liner in and coaxial with the bore and having an outer surface delimited by two axially oppositely directed end faces, an axial middle region between the end faces, and an inner surface centered on the axis. The bore and outer surfaces are in mutual surface contact in a contact area and normally directly engage each other without the interposition of a liquid lubricant. The bearing liner is fixed in the housing against any movement relative thereto other than micromovements. A movable part has a journal centered on the axis and radially outwardly confronting and normally engaging the inner liner surface. This movable part is nonradially movable relative to the liner and housing, that is it can only move axially and/or angularly relative to the liner. Drainage channels formed in at least one of the surfaces at the contact area extend to the axial end faces.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: September 15, 1987
    Assignee: Glyco-Metall-Werke Daelen & Loos GmbH
    Inventors: Erich Roemer, Eckhart Schopf, Gunter Cezanne
  • Patent number: 4655615
    Abstract: A wrapped bush adapted to be force fitted into an axial opening of a bearing housing is formed at its outer peripheral surface with one or more oil grooves. The oil groove or grooves are formed by press work such as embossing to extend obliquely relative to a line parallel to the axis of the wrapped bush such that they are in parallel to or symmetrical with each other with respect to the line. Upon wrapping a metal strip into the wrapped bush, the oil groove or grooves neither lessen the effect due to interference on the wrapped bush nor produce any crease or crack at or near the oil grooves, thereby attaining out of roundness to a desired extent.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: April 7, 1987
    Assignee: Daido Metal Company Ltd.
    Inventor: Sanae Mori
  • Patent number: 4609293
    Abstract: The disclosure concerns an anti-friction bearing between a rotating shaft and an external bushing. The bearing includes two axially spaced apart rows of bearing balls. A feed bushing is disposed in the space between the shaft and the external bushing and between the two rows of bearings. The feed bushing is open at the axial ends for dispensing lubricant to the rows of bearings at the axial ends of the feed bushing. The feed bushing holds lubricant, such as grease, in itself for being dispensed at the axial ends of the feed bushing. A porous elastic material may be disposed in the feed bushing for being impregnated with the lubricant. The feed bushing, and also the porous material if used, are elastic and resilient to permit deflection of the shaft with respect to the external bushing. Various shape and configuration feed bushings are disclosed. A lubricant recharging hole passes through the external bushing and communicates to the feed bushing.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: September 2, 1986
    Assignee: FAG Kugelfischer Georg Schafer (KGaA)
    Inventors: Oswald Bayer, Martin Grehn, Edwin Hey, Hans-Karl Lorosch, Walter Vogel
  • Patent number: 4601590
    Abstract: A floating bush bearing comprising: a pair of an outer member having a cylindrical inner surface and an inner member having a cylindrical outer surface which is inserted in the outer member substantially coaxially, one of said pair of outer and inner members being rotatable and another member being fixed; a floating bush having inner and outer cylindrical surfaces fitted between the outer and inner members; a substantially cylindrical hole which is defined by opposed substantially semicylindrical outer and inner grooves which are formed in the opposed surfaces of the rotatable member and the floating bush; and a small cylindrical pin which is fitted into the hole.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: July 22, 1986
    Assignee: Ube Industries
    Inventors: Seiji Arii, Katsusaku Yamamoto
  • Patent number: 4594009
    Abstract: A casing for porous self-aligning bushings combines in a single assembly formed from an elastic material all of the members which contribute to hold a bushing in position while allowing it to self-align, fits hubs of any configuration, provides insulation from noise and vibration, recovers lubricant normally expelled during relative rotation between the bushing and shaft therein. The casing can store up an amount of lubricant and, in the instance of a bushing rotating around a stationary shaft, retains the lubricant which would otherwise be forced out by centrifugal force from the outer porous surface of the bushing. A bearing includes such casing and the bushing elastically fitted therein.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: June 10, 1986
    Assignee: European Electric Motors Design and Engineering Anstalt
    Inventor: Giorgio Gutris
  • Patent number: 4582368
    Abstract: A method of manufacture of a dry bearing material for high speed, high load purposes is disclosed. A resin paste obtained by kneeding together a polytetrafluoroethylene (PTFE) resin and a solid lubricant is coated on a porous metallic sintered layer formed on a steel plate such that it fills the interstices of the sintered layer and covers the surface thereof. The solid lubricant is in a thinly rolled state obtained from pulverized solid lubricant, and it is distributed a leaflike or scalelike form and in a striation consisting of multiple layers spaced apart one above another.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: April 15, 1986
    Assignee: NDC Company, Ltd.
    Inventors: Masahito Fujita, Noboru Okabe
  • Patent number: 4576488
    Abstract: A bearing bushing for a journal bearing of a brake shaft of a drum brake. One end of the bearing bushing, on the outside, is provided with a circumferential, annular grease recess for the introduction of grease. Branching off in the axial direction from this recess are distributing channels, and disposed as extensions thereof on the inside are lubricating channels which extend in the opposite axial direction. In order to improve the distribution of grease, and to improve the formation of a closed lubricating film, each distributing channel opens out into a hole, which are interconnected on the inside by a circumferential, first annular channel. The inner lubricating channels are disposed between the distributing channels, extend parallel thereto between the holes, and are connected to the first annular channel. The lubricating channels open out into a circumferential second annular channel, which is connected to at least one outlet channel.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: March 18, 1986
    Assignee: Bergische Achsenfabrik Fr. Kotz & Sohne
    Inventors: Helmut Steiner, Wilfried Ebbinghaus, Hartmut Paech
  • Patent number: 4558960
    Abstract: The invention provides a radial friction bearing assembly, particularly for rotatably mounting the rolls of a paper or textile material processing machine, which will give a stable rotational movement without any vibrations and ensures that always an uninterrupted lubrication film is available, even at very low rotational speeds. A preferred embodiment of the bearing assembly comprises a stationary shaft member and an annular sleeve member rotatably mounted on the shaft member. The latter one comprises on its outer surface a plurality of equidistantially arranged longitudinal grooves which extend parallelly to the axis of the shaft member. A plurality of trapezoidally shaped recesses or pockets, having a substantially smaller depth than the longitudinal grooves, extend from and communicate with said grooves, the base edge of the trapezoid adjoining the leading edge of the longitudinal grooves.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: December 17, 1985
    Assignee: Arcomac S.A.
    Inventors: Jukka A. Lehtinen, Arvo K. Karhola, Walter H. Griner
  • Patent number: 4545741
    Abstract: A vertical motor pump including an upper bearing and a lower bearing located on the motor side for journaling a rotary shaft for rotation at an upper portion and a lower portion respectively of a rotor, at least one of the upper and lower bearings being constituted by a ball bearing. The vertical motor pump further includes a hydrostatic lubricated bearing system for journaling the rotary shaft besides the ball bearing, for bearing a radial thrust during operation.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: October 8, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Shunzoo Tomioka, Masaaki Nakano, Kinpei Okano, Kousaku Shimizu, Hiroaki Yoda
  • Patent number: 4472004
    Abstract: A bearing assembly for supporting the shaft of a spinning rotor is provided having a housing in which a pair of roller bearings are mounted spaced from each other along the shaft and which journal the shaft. Interposed between the roller bearings and surrounding the shaft is a sleeve in the form of a tubular member provided with at least one capillary channel formed between the inner and outer surfaces and extending longitudinally between its frontal ends. At least one hole extends from the outer surface radially inward in communication with the capillary channel. In this manner lubricant supplied to the housing exterior of the sleeve will pass through the hole and the capillary channel into direct contact with the roller bearings.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: September 18, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Rudolf Fingerle, Gunther Gutmann, Theodor Hempel
  • Patent number: 4427309
    Abstract: A bearing for supporting a turbocharger shaft comprises a one-piece cylindrical bearing sleeve for rotational floating between a turbocharger housing and shaft. The bearing includes an inner diameter configured to define a plurality of axially extending arcuate lands formed on a common radius and separated by oil-receiving recesses.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: January 24, 1984
    Assignee: The Garrett Corporation
    Inventor: James E. T. Blake
  • Patent number: 4381127
    Abstract: The invention relates to the combination of a radial bearing 4,5;38,39 and a seal 14,17,21; 42,45,46 which both make use of elastomeric bushings 6,7,17,42,45 having a smooth cylindrical surface supporting a shaft (1,36) provided with helical grooves 10,11,15,19,46 conveying the lubricating liquid said helical grooves conveying in the same or opposite directions, said combination of radial bearing and seal further can be combined with an axial bearing 40 having grooves in a disc 53 which rotates with the shaft (36) and which is in engagement with stationary discs 54,55 of elastomeric material.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: April 26, 1983
    Assignee: IHC Holland N.V.
    Inventor: Teunis Visser
  • Patent number: 4381126
    Abstract: The invention concerns hydrostatic bearings supplied with fluid under pressure for a shaft rotating at high speed in a fixed bed, with the goal of reducing the power dissipated by shear of the fluid in the said bearings.According to the invention, a sleeve (5) is disposed coaxially to the shaft (1) in a chamber arranged for this purpose between the bed (3) and the shaft (1), with apertures being arranged respectively in the shaft and in the bed, opposite the sleeve on one side and the other, in such a way that a movement in rotation can be imparted to the sleeve (5), the structure being particularly applicable to fluid pumps.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: April 26, 1983
    Assignee: Jeumont Schneider Corporation
    Inventors: Michel P. Drevet, Jean Trouillet