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NTN Toyo Bearing Co., Ltd. Patents
Assignee:
NTN Toyo Bearing Co., Ltd.
Address:
Osaka, JP
No. of patents:
44
Patents:




Patent Number Title Of Patent Date Issued
4989705 Rotary member with one-way clutch February 5, 1991
A rotary member as a one way clutch including an outer ring formed in its inner periphery with axial grooves each formed on its bottom with a cam surface tapered in one of the opposite directions of rotation, an outer member fixedly mounted on the outer ring and having an end wall for
4969753 Wheel bearing assembly for automotive wheel November 13, 1990
A wheel bearing assembly for an automotive wheel equipped with a detector for the number of revolutions of a wheel hub. It has an outer member and two inner members mounted in the outer member through rolling elements. A pulse ring in the form of a multipolar magnet is mounted in the bea
4950209 Autotensioner August 21, 1990
An autotensioner includes a cylinder having its bottom closed and filled with a hydraulic oil and air, an oil seal mounted in the cylinder to seal the hydraulic oil and air, a rod slidably extending through the oil seal, and a piston slidably mounted in the cylinder with its top end abut
4940447 Autotensioner for adjusting the tension of a timing belt July 10, 1990
An autotensioner for adjusting the tension of a timing belt used with an automotive engine. It includes a cylinder case filled with a hydraulic oil, a piston partitioning the interior of the cylinder case into a pressure chamber and a reservoir chamber and a push rod having its bottom
4938612 Bearing assembly with wheel revolution detector July 3, 1990
A bearing assembly with a revolution detector for detecting the number of revolutions of a vehicle wheel. It includes a pulse ring made of a ferromagnetic material into a multipolar magnet and fixedly mounted on the outer periphery of the inner ring and a sensor mounted on the outer ring
4916750 Sealed double row spherical roller bearing April 10, 1990
A sealed double row spherical roller bearing assembly, having a bearing, with an outer race providing two spaced-apart outer roller tracks, and defining in section an arc of a sphere, an inner race defining two parallel spaced-apart inner roller tracks, each defining in section an arc
4904230 Belt autotensioner February 27, 1990
A belt autotensioner for giving a desired tension to a belt. It includes a tension pulley pressed against the belt, an eccentric shaft extending through the tension pulley to rotatably support it and formed with a hole arranged eccentrically from the axis of the tension pulley, an actuat
4901831 Clutch February 20, 1990
A clutch having an outer member, an inner member mounted in the outer member, a cage interposed between the outer and inner members and cam elements movably mounted in pockets formed in the cage. Torque-setting elastic members are provided between the cage and one of the inner and ou
4893387 Roller elements for roller bearing January 16, 1990
A roller element for use in a roller bearing having a surface formed with minute recesses at random so that the ratio RMS(L)/RMS(C) will be not more than 0.8 wherein RMS(L) is the roughness mean square value in the longitudinal direction and RMS(C) is the roughness mean square value in
4865468 Wheel bearing assembly for automotive wheel September 12, 1989
A wheel bearing assembly for an automotive wheel equipped with a detector for the number of revolutions of a wheel hub. It has an outer member and two inner members mounted in the outer member through rolling elements. A pulse ring in the form of a multipolar magnet is mounted in the bea
4863417 Auto-tensioner for belt September 5, 1989
An auto-tensioner for a belt has a cylindrical body having a bottom. A nut formed with female threads on its inner periphery and having a rod integrally formed at one end is slidably mounted in the body. A bolt is mounted in the body so that its male threads will engage the female th
4856916 Conducting rolling bearing August 15, 1989
In a conductive rolling bearing comprising an inner ring (11), an outer ring (12), a plurality of rolling elements (13) mounted between the inner ring and the outer ring, and seal members for sealing the space between the inner ring and the outer ring, the seal members have one end there
4852707 Reversible self-locking clutch August 1, 1989
An improved clutch for use with an electric power steering assembly is disclosed. The improved clutch has an outer member, and a cage mounted between the outer and inner members and formed with a plurality of pockets. The improved clutch further comprises a pair of rolling elements m
4846592 Rolling bearing July 11, 1989
An annular oil filter for covering an open end of a rolling bearing has its outer edge held between two annular retainer plates, the outer edges of which are held by a rubber mold to unite them into one body. The rubber mold is resiliently received in an annular groove formed in the inne
4840740 Grease for homokinetic joint June 20, 1989
Improved greases for use in homokinetic joints are proposed which comprise a base oil, a thickening agent, and an organic molybdenum compound. Greases comprising a base oil, a thickening agent, an organic molybdenum compound, and an organic zinc compound are also proposed. These greases
4786270 Homokinetic tripod joint November 22, 1988
A homokinetic tripod type universal joint including a tripod member having three trunnions, with a roller rotatably mounted on each trunnion is mounted in an outer member. The roller consists of an inside ring and an outside ring wherein contact is established between a spherical outer
4773890 Slidable-type homokinetic (universal) tripod joint September 27, 1988
A slidable-type homokinetic tripod joint includes an outer member formed with track grooves, a tripod member having three trunnions and mounted in the outer member with the trunnions on the tripod member received in the track grooves in the outer member, and a spherical roller rotatably
4747803 Tripod homokinetic universal joint with cylindrical rollers and a flat roller guide May 31, 1988
A tripod type homokinetic universal joint which has a tripod member formed with three trunnions, an outer member formed with three track grooves to receive the trunnions, and a cylindrical roller mounted on each trunnion. Each track groove has a pair of roller guide surfaces which are fl
4733979 Thrust roller bearing assembly March 29, 1988
An improved thrust roller bearing assembly is proposed which comprises a thrust roller bearing and an annular shim. According to this invention, the shim can be coupled with the thrust roller bearing beforehand. This simplifies the assembly of related members. Engaging means provided on
4725153 Thrust roller bearing assembly February 16, 1988
An improved thrust roller bearing assembly is proposed which comprises a thrust roller bearing and an annular shim. According to this invention, the shim can be coupled with the thrust roller bearing beforehand. This simplifies the assembly of related members. Engaging means provided on
4696581 Rolling bearing September 29, 1987
An improved rolling bearing is proposed which has a longer life under heavy load and under lubrication with oil containing foreign matters. Its bearing rings and rolling elements are made of carburized steel having an oxygen content of 15 PPM or less and have a deeper surface hardened la
4686404 Controlled radial magnetic bearing device August 11, 1987
A controlled radial magnetic bearing device which has an X-axis electromagnet and a Y-axis electromagnet provided on the X-axis and Y-axis perpendicular to each other in a plane normal to the axis of a rotary shaft, X-axis and Y-axis position sensors for detecting any displacement of
4684356 Roller bearing assemblies for a homokinetic universal joint August 4, 1987
A tripod type homokinetic universal joint which comprises an outer member, a tripod member, and bearing assemblies interposed between the outer member and the tripod member. Each bearing assembly has a plurality of rows of rollers adapted to roll on rolling guide surfaces on track groove
4592172 Method of machining tapered roller bearing inner rings June 3, 1986
A method of machining tapered roller bearing inner rings, wherein after the inner ring raceway groove 14 has been finish-ground, the inner ring small end face 13 and cone back face rib surface 12 are simultaneously finish-ground. In the manufacture of double row tapered roller bearings,
4541157 Method of producing split bearing rings September 17, 1985
A method of splitting bearing rings in a direction obliquely crossing their axes. This method comprises forming a notch of substantially V-shaped cross-section in the inner or outer peripheral surface of a bearing ring obliquely or in a V-direction, or forming a notch of substantially
4454640 Method of producing bearing devices for driving wheels of automobiles June 19, 1984
A method of manufacturing bearing assembly for the driven wheels of automobiles comprises the steps of grinding the outer peripheral raceway surface 5, cylindrical seat 6 and shoulder surface 9 of the outer joint member of a constant velocity joint simultaneously by a grinding wheel 21,
4411244 Air flow measuring device for internal combustion engines October 25, 1983
An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned
4370966 Fuel feed system February 1, 1983
A fuel feed system adapted to maintain at a constant value the pressure difference across a fuel measuring gate disposed in a fuel feed passage and control the area of opening of the fuel measuring gate in connection with the amount of air being sucked into an internal combustion engine
4361691 Process for production of heat-resistant compounds November 30, 1982
A process for producing a heat-resistant compound, which comprises adding a diamine to an organic solvent-soluble metallosiloxane compound whose main chain consists of siloxane bonds --Si--O-- and metalloxane bonds --M--O-- wherein M represents at least one element selected from the grou
4361679 Process for producing heat-resistant and moisture-resistant polyborometallosiloxanes November 30, 1982
A process for producing a heat-resistant and moisture-resistant polyborometallosiloxane, which comprises adding a metal compound and a compound capable of easily forming a complex with the metal compound to an organoborosiloxane, the metal in said metal compound being at least one me
4285312 Air flow measuring device for internal combustion engines August 25, 1981
A gas flow measuring mechanism having a feedback control mechanism comprising a flow detection valve and a flow control valve which are in series with each other and placed in a channel, an area flowmeter for keeping constant the difference in the pressures existing on opposite sides
4270257 Method for manufacturing a fuel injection valve June 2, 1981
There is disclosed a fuel injection valve for internal combustion engines, which is used in combination with a fuel injection device for intermittent injection of fuel and which comprises a main body having a passageway extending between a fuel inlet and a fuel outlet, a valve member whi
4239028 Air flow measuring device for internal combustion engines December 16, 1980
An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned
4218930 False twist spindle friction disc and method of producing same August 26, 1980
A false-twist spindle friction disc comprises an annular rotor member whose lateral surfaces are machined to form coupling means and which is made of a highly rigid, centrifugal-force-resistant, high melting point material, and a support base made of a thermoplastic synthetic resin surro
4187588 Construction of pendulum arm type high sensitivity self-aligning weighting arm February 12, 1980
A pendulum arm type high sensitivity self-aligning weighting arm includes a press assembly for pressing a driven body consisting of a roller body against a driving body such as a roller body or a belt body, wherein one end of the press assembly which has the function of holding and press
4184505 Fuel flow rate measuring device January 22, 1980
A fuel flow rate measuring device comprising a control rod axially movable in proportion to the rate of flow of air flowing through a suction pipe, a ball disposed in a taper bore and adapted to be moved in the taper bore by the control rod, the taper bore and the ball cooperating with e
4184465 Fuel injection device for internal combustion engines January 22, 1980
A fuel injection device is disposed in a fuel supply passageway and adapted to control the amount of injection by controlling the opening time and/or opening area of a gate controlled in connection with engine rpm and the amount of suction air. The difference between the fuel supply pres
4164923 Fuel injection device for internal combustion engines August 21, 1979
The present invention relates to fuel injection device characterized by comprising a main body having an axial cylindrical bore, a fuel supply port, a plurality of fuel metering ports, and a plurality of fuel distributing ports communicating with said fuel metering ports; a rotor hav
4153018 Air flow measuring device for internal combustion engines May 8, 1979
An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned
4093390 Bracket tightening device June 6, 1978
A bracket tightening device for fixing a bracket or the like on a round rod or shaft. The device uses an intermediate body formed of a resilient material which is sufficiently strong within the restorable elastic limits, one end of the intermediate body being engaged at a fixed point on
4077812 Method of working steel machine parts including machining during quench cooling March 7, 1978
The invention provides a method of working steel machine parts, and it relates to a composite technique consisting of machining and heat-treatment, which makes use of the fact that at temperatures in the vicinity of or above the Ms point during quench cooling, the structure of steel
4072227 Pin type transfer apparatus for apertured-workpieces February 7, 1978
A transfer apparatus designed so that workpiece transfer pins are fixed at predetermined intervals to a chain circulating along a frame. The pins horizontally project through a lateral surface of the frame and are also circulated in conjunction with the circulation of the chain so that
4071149 Apparatus for piling apertured articles in stacks for storage January 31, 1978
An apparatus is disclosed wherein annular articles conveyed one by one to a chute member are successively transferred to a rail member connected to the chute member until a predetermined number of articles are lined up thereon, whereupon a plurality of slender holders waiting their turn
4052021 Bobbin hanger October 4, 1977
There is disclosed a bobbin hanger comprising an upper assembly serving for attachment and aligning suspension, an intermediate assembly serving for constrained rotation and alignment, and a lower assembly serving for removable mounting and aligning suspension of a bobbin. Below the uppe

 
 
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