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SKF Nova AB Patents
Assignee:
SKF Nova AB
Address:
Goteborg, SE
No. of patents:
87
Patents:


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Patent Number Title Of Patent Date Issued
D342040 Chain link December 7, 1993
D277487 Worm gear February 5, 1985
D275447 Cable peeling tool September 11, 1984
6585462 Device in a tool holding assembly for moving a rotatable shaft in the axial direction July 1, 2003
A device in a tool holding assembly for axially moving a rotatable shaft on which is arranged at a first end of the shaft a device for performing work during rotation of the shaft includes an electric motor for rotating the shaft, and at least one bearing radially supporting the shaft an
6443724 Forming tool September 3, 2002
A forming tool has a die with a seat for receiving material to be formed, an upper punch axially movable into and out of the seat from one side of the die, a lower punch axially movable into and out of the seat from the opposite side of the die, a movable loading device for introducing t
6406663 Method and apparatus for compacting a powder material into a homogenous article June 18, 2002
A method and corresponding device for compacting a powder material into a homogenous article. The method includes the steps of, placing the powder material in a molding cavity connected to a gas source, blowing gas into the lower end of the molding cavity so that the particles in the pow
6403025 Method and a device for compacting of powder metal bodies June 11, 2002
Method and device for production of powder metal bodies comprising: introducing powder material (4) in a compacting chamber (4) in a hollow die (1), compacting the material in mainly axial direction in the compacting chamber by urging a first punch (2), axially into said compacting c
6250142 Waviness measurement June 26, 2001
A method and apparatus for measuring the waviness of surfaces of, for example, bearing parts involves the use of a control element that is rotatably applied against a surface of the object to be measured. The control element has a similar geometry to the final bearing component and i
6234679 Rolling bearing with coated element May 22, 2001
A rolling bearing made of bearing steel and incorporating an inner race, an outer race positioned coaxially about the inner race and a set of rolling bodies positioned in the annular space between and in rolling contact with the inner and outer race, wherein at least one of the inner rac
6194801 Device for limiting shaft whirl February 27, 2001
An arrangement for limiting the whirl speed of a shaft after failure of a magnetic bearing supporting the shaft. The arrangement includes a surface extending essentially radially from the shaft axis and a machine element is provided with a projecting element extending from the machine el
6150305 Compound and method for heating a lubricated bearing November 21, 2000
The present invention includes a lubricated bearing which incorporates a phase convertible compound. The compound absorbs and stores heat generated during operation of the bearing. This absorbs and stored heat is then released upon start-up conditions of the bearing, especially under low
6149312 Roller bearing November 21, 2000
A roller bearing comprising an inner and an outer ring in concentrical arrangement, a series of roller elements being arranged in the space between said rings and being in contact with raceways provided in said rings. The bearing is characterized in that said raceways are provided wi
5972284 Method for the production of solid shaped bodies October 26, 1999
Solid, homogenous or porous, shaped bodies are formed from different powders such as metals and ceramics by preparation of an aqueous slurry of the powder, which slurry comprises a protein substance which is soluble in water at ambient temperatures and capable of forming an irreversible
5741762 Lubricated rolling contact devices, a method for lubricating rolling contact devices, and a comp April 21, 1998
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 compositi
5343759 Sensor system September 6, 1994
The invention relates to a sensor system for measuring e.g. the preloads in screws, bolts or similar. It comprises sensor means (2) comprising a magnetoelastic material (6) sensitive to the preloads to which the object is exposed and a sensing device (3) comprising a contact portion (4)
5177869 Double row angular contact ball bearings and a method for the manufacture thereof January 12, 1993
A double row, angular contact ball bearing comprises of an integral inner race ring and an integral outer race ring, the outer race ring having at least one circumferential depression between the rows of balls and the inner race ring having a circumferentially radially extending end memb
5104582 Electrically conductive fluids April 14, 1992
The invention refers to an electrically conducting, preferably magnetic fluid, which contains magnetic particles, dispersed in a carrier fluid by means of a dispersant. The fluid is characterized therein that it also contains an electrolyte, which is held in solution by means of one or m
5059039 Magnetic bearing bushing October 22, 1991
A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve
5054939 Magnetic sliding bearing October 8, 1991
A sliding bearing which is mounted on a shaft (2) and is composed by a magnetized material, whereby between the sliding bearing (1) and a surrounding bearing housing (5) is provided a magnetic fluid as lubricating and sealing agent. The sliding bearing (1) has sliding shoes (3) adapt
5052823 Magnetic bearing bushing I October 1, 1991
A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve
5013945 Linearly operating motor May 7, 1991
A linearly operating motor for stepwise advance of a driven member (11), such as a shaft, comprises an elongated body (10) with length variable properties, and means (15) for changing the length of said body (10). The driven member (11) is provided with at least one locking member (12),
4973186 Device for securing a machine element to a shaft November 27, 1990
A device for securing a first machine part to a second machine part having a first contact surface and a second contact surface. The first contact surface has at least one external sleeve portion. A threaded locking member cooperatively engaging the sleeve portion is actuatable relative
4970422 Device with a thrust bearing November 13, 1990
A rotatable element is arranged on a supporting member. The element is freely rotatable and displaceable radially by being held in position by two portions attracting each other, said portions being made of magnetic material, and that a plane slot separates the supporting member and the
4944642 Bearing arrangement in rotary machines July 31, 1990
A rotary machine, such as a hammer drill, comprises a tool-carrying shaft (12), which is rotatably supported in the machine housing (11) by means of a ball bearing (24). The outer race ring (25) and the inner race ring (26) of the bearing are axially secured in the housing (11) and on th
4938886 Superparamagnetic liquids and methods of making superparamagnetic liquids July 3, 1990
Superparamagnetic liquids comprising:(A) magnetic particles in stable colloidal suspension; (B) an A-X-B dispersant wherein A is derived from a non-ionic surface active agent, B is a carboxylic acid group and X is a connecting group between A and B; and (C) a carrier liquid which is a th
4913542 Rear view mirror with two parallel displaced mirror parts April 3, 1990
In a rear view mirror intended primarily for mounting on a motor vehicle, the specular surface in order to obtain a limited transverse extension, is divided into at least two separate parts (4, 5), which are displaced relative each other, thus that they are situated in different planes.
4913450 Seal April 3, 1990
The invention refers to a seal for bearing spaces, wall channels for shafts and the like, where the seal is fitted to the shaft. The seal is characterized in that it incorporates a sheet metal strutting projecting radially outwards, and on the side facing away from the space intended to
4909643 Device for attachment of a machine member to a shaft March 20, 1990
A device for attachment of a machine member to a shaft, whereby the machine member has an opening for said shaft. The opening has on one hand surface portions of a shape corresponding to the shape of the shaft, cylindrical or tapering, and on the other hand, surface portions having a sha
4880153 Device for use in explosive welding of two overlapping tubular or annular elements November 14, 1989
A device for use in explosive welding of two overlapping tubular or annular elements (1, 2) by an explosive charge (3). The explosive charge (3) is located in the hold of the one element (1) in front of the overlapping portion of the other element (2). The elements (1, 2) are surrounded
4832550 Screw and nut device equipped with a rotation brake May 23, 1989
In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, for effecting a big braking moment
4804354 Driving wheel with a belt pulley February 14, 1989
The invention relates to a driving wheel for car engines or the like, incorporating a gear wheel, which is intended to cooperate with a cogged belt, and a pulley attached to one side of the gear wheel and arrested to this. The gear wheel molded from a plastic or similar material having a
4799918 Gear wheel January 24, 1989
The invention relates to a gear wheel consisting of plastic material or a similar material having a coefficient of thermal expansion higher than that of steel. The gear wheel further includes a helix of steel or another material having a coefficient of thermal expansion similar to or ide
4747320 Screw and nut drive with rotation lock May 31, 1988
In a device for producing self-locking properties of a screw and nut device the nut co-operates with a torque-transmitting part which is rotatable in relation to the nut. Torque is transmitted via a portion on the torque-transmitting part, which portion is arranged in a space between two
4744676 Gas bearing and method of making it May 17, 1988
The invention relates to a gas bearing with a bearing surface arranged on a gas permeable element to which a pressure medium can be supplied from an external source. The bearing surface is arranged on a less permeable surface layer, through which holes are made. In order to ensure good g
4741469 Clamping ring attachable with split clamping means May 3, 1988
A clamping ring, intended to enclose and exert a clamping force against a cylindric element and incorporating a slot and a clamping means enclosing the slot, is provided with stepladder-shaped surface elements on each side of the slot, for making possible a compact design and favorable f
4706966 Seal with pressure fluid feed November 17, 1987
A seal comprising a gap between e.g. a flange (5) on a shaft and an element (6) arranged in a surrounding housing (2) is used for separating a fluid in a space (3) in the housing from the space (4) surrounding the housing. A pressurized fluid is supplied to the gap via a conduit (8) and
4693351 Reversible freewheel device September 15, 1987
A freewheel device with freewheeling and locking effect in both directions of rotation can be produced easily and inexpensively by the use of conventional sprags designed for use in uni-directional freewheel devices. Two sets of sprags are provided between the inner and the outer raceway
4673375 Friction coating for contacting elements of a constant velocity joint June 16, 1987
In a constant velocity joint having an inner and an outer part with opposite grooves in which are arranged rolling bodies guided by a retainer, the grooves and/or the rolling bodies are provided with a friction coefficient increasing surface layer in order to give reduced contact str
4669911 Clamping ring with variable bore size June 2, 1987
A clamping ring for use e.g. as a support around a jointing sleeve during explosion welding consists substantially of two preferably equal ring halves (1,2) connected to each other over slots (3) limited by flanges (4,5) comprising surfaces (6,7) which form an angle (.alpha.). The su
4645395 Locking nut February 24, 1987
The invention concerns a nut provided with a locking element (4, 5, 6, 7), which by e.g. a screw (8, 9, 10, 11) can be urged radially against a screw thread. In order to provide a self-contained and easily releasable nut the locking element is arranged in a recess which, together with th
4645047 Freewheel mechanism February 24, 1987
In a freewheel mechanism with a number of blocking members arranged between raceways on two elements, one raceway is arranged on a body which is co-operating with one of the elements and is turnable thereon. The circumference of the body is variable for varying the distance between the
4598443 Device for providing a clamping joint July 8, 1986
A device for providing a clamping joint comprises two elements (1,2) with complementary threads, each having a flange constituting a clamping surface. Clamping takes place upon relative axial displacement of the elements (1,2) which can be brought about by screws (4) arranged axially
4596477 Device for fastening a machine element June 24, 1986
A device for fastening e.g. a bearing ring on a shaft comprises a clamping sleeve and a clamping member co-operating with the sleeve. The clamping member and the sleeve contact each other over wedge-shaped surfaces. The sleeve surfaces intended for contacting the bearing ring and the cla
4586392 Motion transmitting mechanism May 6, 1986
In a motion transmitting mechanism comprising a linearly moveable member (3) operating to and from an end stop, a compressible spring (9) is arranged between the linearly moveable member (5) and a supporting surface (10), whereby the spring is compressed when the member (5) approaches th
4569602 Device comprising an angular contact bearing February 11, 1986
In a device with a double-row angular contact bearing the outer raceways are arranged in elements (4,5) which are axially displaceable in relation to each other. Prestressing or play of the bearing is determined by an elastic ring (7) situated in a space delimited by opposing surfaces
4566811 Device for sealing a self-aligning rolling bearing January 28, 1986
A device for sealing a spherical rolling bearing comprises two annular sealing bodies (4, 5) arranged on the respective bearing rings and divided by a gap (6) with spherical opposing surfaces. A further sealing washer (9) is provided in recesses (7, 8) in the sealing bodies (4, 5) and
4565464 Clamping joint January 21, 1986
An element intended for connection to a shaft arranged in a bore in the element comprises two elastically deformable portions created by providing slots perpendicular and parallel to the axis of the bore, respectively. The portions each comprise a part of the wall of the bore and are arr
4564243 Hub bearing unit January 14, 1986
The invention refers to a hub bearing unit for vehicles, trailers and the like incorporating two rows (4) of rolling bodies with a common outer ring (5). On the outer race ring (5) is arranged a flange (6) for mounting the unit and arranged symmetrically relative to the rows of rolling b
4559843 Coupling member for mechanism for converting linear to rotary motion December 24, 1985
The invention relates to a device for performing rotational movement and comprises a rotatably element such as a cog-sector (3) or the like, arranged in a housing (1). The sector can easily be connected to rotatable machine elements of various kinds by being provided with an easily e
4558885 Hub bearing unit having a ball joint December 17, 1985
The invention pertains to a hub bearing unit for vehicles, trailers and the like, which unit comprises an inner race ring, an outer race ring (1) and rolling bodies disposed therebetween, whereby the inner and the outer race ring (1) respectively are mounted to the wheel and to the vehic
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