Abstract: A wheel bearing assembly includes i) a wheel hub having a hub spindle, a central hole formed the hub spindle, and female splines formed extending in the axial direction on an inner peripheral surface of the central hole, and ii) a constant velocity joint outer ring having a protruding central shaft and male splines formed extending in the axial direction on an outer peripheral surface of the central shaft. The wheel hub and the constant velocity joint outer ring are splined together by the male splines and the female splines fitting together, and a seal layer made of an anaerobic sealant that seals a gap at a meshing area where the male splines and the female splines mesh together is provided at that meshing area.

Abstract: A washer is disposed between a lid part of a cup and an end surface of a shaft portion of a cross-shaped shaft so as to be relatively rotated with respect to the end surface of the shaft portion. The washer is provided with a projected portion which is projected into a recess formed on the end surface of the shaft portion. Blade portions are formed on an outer surface of the projected portion. Grooves which are extended from the projected portion outward in a radial direction are formed on an end surface of the washer only at a side of the projected portion in the axial direction.

Abstract: A brushless motor includes an annular stator and a rotor which has a plurality of permanent magnets alternately arranged in circumferential direction on the rotor to form poles and which is disposed within the stator to be rotatable with respect to the stator. The stator includes a cylindrical yoke and a plurality of teeth which are same in size one another, are connected to the yoke to extend therefrom toward the rotor, and are disposed at even interval in the circumferential direction. Width of each of the teeth in the circumferential direction is set to be greater than or at a vicinity of the value which is obtained by dividing outer diameter of the rotor by the number of the teeth and multiplying the result of dividing by ?/2.

Abstract: To provide a oblique contact double ball bearing and a pre-load adding method for the ball bearing capable of easily adding the pre-load by performing adjustment for adding the pre-load in a wide adjustment range. In this oblique contact double ball bearing, clearances between balls and raceways and on one row are made different from clearances between balls and raceways on the other row so as to apply a thrust load to inner and outer rings, and add the pre-load to the inner and outer rings.

Abstract: A rolling bearing unit includes a resin-made cover attached at the opening of the vehicle inward side edge section of an outer ring. The cover includes a cylindrical portion which is fitted into the inner peripheral surface of the opening of the vehicle inward side edge section of the outer ring. A metal ring body is provided at the inner peripheral surface of the cylindrical portion.

Abstract: In a non-circular workpiece grinding machine, a proximity sensor is arranged to face a non-circular portion of a workpiece for sensing a maximum diameter portion of the non-circular portion to detect that the maximum diameter portion is rotating in a detection phase section when the work spindle is rotating in a low speed rotational phase region in which the work spindle is controlled by a numerical controller to rotate at a low speed. Abnormality judging means is provided for judging that an abnormal workpiece rotation is occurring when the maximum diameter portion of the non-circular portion is not detected by the proximity sensor in the state that the work spindle is rotating in the low speed rotational phase region.

Abstract: A shock absorbing steering device for vehicle includes an intermediate shaft that couples a steering shaft and a steering gear. The intermediate shaft includes a hollow accordion portion allowed to undergo plastic deformation. The accordion portion has plural pairs of crest portions and trough portions disposed alternately in an axial direction. At least in a part of the accordion portion in the axial direction, a depth from apexes of the crest portions to bottoms of the trough portions includes a first depth corresponding to a part of the accordion portion in a circumferential direction and a second depth corresponding to a rest part of the accordion portion in the circumferential direction. The first depth and the second depth are different from each other.

Abstract: An electric power steering apparatus is provided with a worm which is a driving gear interlocked with an electric motor for assisting steering, and a worm wheel which is a driven gear having an annular teeth body made of synthetic resin meshing with the worm and a metallic core body coupling the annular teeth body and is attached to the steering shaft. Protrusions are provided on a side surface of the annular teeth body in a face width direction at a plurality of circumferential positions from which a distance to a center of rotation is different from each other, and stirred lubricating fats and oils applied around the worm wheel. As a result, the lubricating fats and oils can be moved to between tooth surfaces of a meshing portion between the worm and worm wheel.

Abstract: A manufacturing method of briquette for use as metal stock is provided which is adapted for effective reduction of a drying time of a porous mass such that the quantity of energy required for the drying process may be reduced. A porous mass is formed by compressing cotton-like aggregates containing metal grinding dust under pressure. The resultant porous mass is immediately dipped in a heated solidification assistant. Subsequently, the porous mass impregnated with the solidification assistant is immediately transported to a drying furnace for drying.

Abstract: First portions are fixed to an outer ring, and second portions are fixed to an inner ring. Bimetal members and electromagnets are embedded in and fixed by elastic portions of the first portions and portions of the second portions are constituted by ferromagnetic members. Whereas at a normal temperature region, the first portions and the second portions are brought into contact with each other, based on deformations of the bimetal members at a temperature equal to or higher than a predetermined temperature equal to or higher than the normal temperature region, the first portions and the second portions are made to be disposed to be spaced apart from each other by intervals therebetween at a temperature equal to or higher than the predetermined temperature equal to or higher than the normal temperature region.

Abstract: A power transmission chain (1) includes a plurality of link plates (2, 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2J) aligned along the chain travel direction (X1) and a plurality of connection members (50, 3) connecting these link plates (2, 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2J) to each other. When the link plates (2, 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2J) are viewed along the chain width direction (W1), the link plates (2, 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2J) each include discrimination portion (22, 22A, 22B, 22C, 22D, 22E, 22F, 22G, 22H, 22J, 22K) for discriminating the chain travel direction (X1).

Abstract: Coupling members (50) are inserted into through-holes (9 and 10) in links (2) of a chain (1). The coupling member (50) includes first and second pins (3 and 4). Pairs of end portions (14 and 15, 27 and 28) of the first and second pins (3 and 4) with respect to an orthogonal direction (V) orthogonal to both a chain travel direction (X) and a chain width direction (W) are received by receiving portions (38 and 39, 40 and 41) provided to the corresponding through-holes (9 and 10) in the corresponding links (2). At least one of the end portions (14, 15, 27, and 28) includes a curved surface portion (14, 15, 32a, or 32a) received by the corresponding receiving portion (38, 39, 40, or 41). The curved surface portion (14, 15, 32a, or 32a) includes an apex portion (20, 22, 33, or 33) with respect to the orthogonal direction (V), and the curvature radius of the curved surface portion (14, 15, 32a, or 32a) is increased continuously or step by step as headed toward the apex portion (20, 22, 33, or 33).

Abstract: A steering apparatus includes an attaching bracket connecting end portions of a pair of tie rods to a rack shaft. The attaching bracket includes a base which is fixed to the rack shaft and includes at least one fixing member inserting hole through which a fixing member fixing the attaching bracket to the rack shaft is provided, and a supporting stay supporting the end portions of the pair of tie rods via ball joints respectively. The supporting stay extends from an intermediate portion of the base in an axial direction of the rack shaft. A center of the ball joint supporting the end portion of each of the tie rods is positioned offset from an axial line of the fixing member by a predetermined distance when viewed along the axial direction of the rack shaft.

Abstract: The testing apparatus tests a steering apparatus including a torque sensor which detects a steering torque, a steering actuator which applies a steering force to a steering mechanism, and a controller which controls the steering actuator based on an output of the torque sensor. The apparatus includes a test signal generating unit which generates a test signal of a sine sweep waveform simulating an output signal of the torque sensor, a driving signal generating unit which generates a driving signal according to the test signal generated by the test signal generating unit and supplies the driving signal to the steering actuator, and a torque signal monitoring unit which acquires a torque signal outputted from the torque sensor.

Abstract: The invention provides an eccentric thrust bearing assembly capable of bearing axial loads in opposite directions. A first aspect of the invention relates to a thrust bearing assembly a1 wherein a first radially outside member and a second radially inside member oppose each other at first positions a21 separately located and clamp therebetween a rolling element a8 disposed at each of the first positions a21, whereas a second radially outside member and a first radially inside member oppose each other at second positions a22 of a different phase from that of the first positions a21 and clamp therebetween a rolling element a8 disposed at each of the second positions a22. In this bearing assembly a1, respective certain portions of the rolling elements are present on the same plane.

Abstract: In a sealing device for a bearing, a sub-seal lip is configured such that a slide contact surface is formed like an annular band. As the rotation speed of the bearing increases, the width of the slide contact surface is reduced by a centrifugal force. Thus, sliding friction can effectively be minimized. The torque of the bearing can be prevented from increasing at high-speed rotation. Even when the centrifugal force increases somewhat, only reduction in the width of the slide contact surface is caused. Thus, a slide-contacted state can be maintained. Consequently, the problem of floating-up of the sub-seal lip from a slinger is difficult to occur.

Abstract: An inner ring, an outer ring, a circular cone roller constituting a rolling elements arranged between the inner ring and the outer ring, a first seal member arranged at an opening portion between the inner ring and the outer ring, and a second seal member arranged on an outer side in an axial direction of the first seal member are provided, the second seal member includes a core fixed to the outer ring, an elastic ring-like member fixedly attached to the core and having at least one lip, and an outward attached slinger having a section in a channel-like shape fixed to the inner ring to cover the core and the elastic ring-like member and having a portion of a section in an L-like shape and a circular cylinder shape portion.

Abstract: A transmission ratio variable mechanism in prior art provided on a steering column needs a spiral cable and hence, not only needs an extra space but is also accompanied by a risk of having a drawback such as the breakage of the cable or the like. A steering wheel shaft 11 and an output shaft 22 are supported in a housing 21 attached to a steering column 13, to be rotatable on the same axis; first and second sun gears 45, 46 different slightly in the number of gear teeth are formed on facing end portions of the steering wheel shaft and the output shaft; first and second planetary gears 53, 54 meshing with the first and second sun gears are supported on a carrier 47; and a worm shaft 58 meshing with a worm wheel 57 connected rotationally to the carrier is constructed to be rotatable by a motor 43 which is provided on the housing in a direction perpendicular to the rotational axis of the steering wheel shaft and the output shaft.

Abstract: An IG-off-timer measures the time t_off from when an engine is stopped, or an ignition is turned off. An ECU sequentially memorizes an estimated temperature of each of heat generating portions as a memorized temperature. Immediately after the engine is re-started, the ECU sets an initial value of the estimated temperature of each heat generating portion in such a manner that the initial value reflects a temperature drop of the heat generating portion in the deactivation period of the engine. The temperature of the heat generating portion is thus accurately estimated even after re-starting of the engine. The heat generating portions are thus appropriately protected.

Abstract: A vehicle steering apparatus includes a jacket for rotatably supporting a steering shaft, and an electric motor. The electric motor includes an annular rotor arranged coaxially with the steering shaft and rotating together with the steering shaft. The jacket includes a tubular upper jacket and a tubular lower jacket that are fitted into each other and are moved axially relative to each other in the collision of a vehicle. An annular space surrounding the steering shaft is provided radially inside the rotor. A part of the upper jacket enters the annular space in the collision of the vehicle.