Abstract: An output cable 16c of a magnetic sensor 16a, which extends outward in the tangential direction of an arcuate sensor holding portion 15a formed on an annular core member 15 from a sensor unit mounted in the sensor holding portion 15a, is fixedly molded in a mold resin 17b which is fixed in a through hole 15c formed in the sensor holding portion 15a near the sensor unit 16. As a result, the output cable 16c is prevented, even if tensed, from coming out of the sensor unit 16.

Abstract: A bearing includes an inner race member having an end surface. An outer race member is disposed about the inner race member. The outer race member has an internal shoulder for engaging the end surface of the inner race member. The inner and outer race members are configured to define a raceway between them and to define a snap ring seat between them. There are cylindrical rollers in the raceway and a snap ring in the snap ring seat. The bearing may be provided as a follower head on a cam follower or may be eccentrically mounted on a drive shaft to serve as a cam. A bearing can be assembled by inserting the inner race member into the outer race member, disposing cylindrical rollers in the raceway and disposing a snap ring in the snap ring seat.

Abstract: A roller bearing, which has a brake device made of outer and inner bearing rings, between which rollers roll on corresponding rings, a displaceable braking element connected to one of the bearing rings pressed against an associated opposite surface connected to the other bearing ring to generate a braking effect due to a frictional fit, which can be neutralized by an electromagnet. The electromagnet is made of one of the hearing rings as a soft iron core, and a coil encompassing the ring. A ferromagnetic armature plate is connected to one of the bearing rings and is pressed towards a pressure plate, which is connected to the other bearing ring. At least one disc is disposed between the armature plate and pressure plate. The disc is operationally connected to brake linings on both sides, and each have a form-fit connection to one of the bearing rings by guide pins.

Abstract: A linear motion guide device includes a movable member attached onto an elongated member for forming an endless multiple-turn, helical raceway between the elongated member and the movable member and for receiving ball bearing members, and a detecting device includes a magnetic member and an integrated circuit disposed in the movable member and arranged close to the endless multiple-turn, helical raceway for detecting a moving frequency or a movement of the ball bearing members through the endless multiple-turn, helical raceway of the linear motion guide device and for detecting a wear or failure of the ball bearing members and for generating a warning signal.

Abstract: The invention seeks to provide a rotor for use in rotary encoder, which is increased in magnetic intensity and mechanical strength thereby achieving exact detection of rotation speed. A corner portion formed between a cylindrical portion 21 and a mounting flange 22 of a core 20 constitutes a protrusion 23 unitized with the cylindrical portion and the mounting flange, protruded from axial one end of the cylindrical portion 21 and opened toward the axial other end thereof. A part of a pulser ring 31 is disposed in the protrusion 23.

Abstract: In order to omit jostling caused between the adjacent rolling elements, a clearance is formed therebetween in a load region. A transfer path has a region that allows the rolling elements to contact only one of the transfer grooves of the transfer path, or a region that has a friction force acting between one of the transfer grooves of the transfer path and the rolling elements being greater than the friction force acting between another one of the transfer grooves of the transfer path and the rolling elements. The one of the transfer grooves in the region has a cross sectional shape taken in a direction perpendicular to the direction, in which the rolling elements are transferred, which cross sectional shape allowing two point contact with the rolling elements; and the rolling apparatus further has a contact-angle changing path that has a contact angle with the rolling elements that is greater than the contact angle of the other portion of the transfer path.

Abstract: A bearing includes a main body, a plurality of first magnetic members, a plurality of second magnetic members, and a plurality of friction members. The main body defines a pivot hole, and a plurality of first receiving portions and a plurality of second receiving portions around the pivot hole. Each of the second receiving portions defines a cutout. The first magnetic members are received in the first receiving portions. The second magnetic members together with the friction members are received in the second receiving portions, thus generating a repelling force between the first magnetic members and the second magnetic members to impel the friction members to partially extend out of the cutouts.

Abstract: To downsize a bearing assembly with a rotation detection device, a magnetic generating element (2) having a directionality about a rotation axis O is provided on an inner race (21) side of the bearing assembly (20). A rotation sensor (3) capable of detecting a magnetism of the magnetic generating element (2) and outputting information descriptive of rotation or angle is fitted to an outer race (22) side in alignment with a bearing axis. The magnetic generating element (2) is fixed to a fixing member, for example, a rotary shaft (10) that is fixed to an inner diametric side of the inner race (21) of the bearing assembly (20).

Abstract: A rotation detecting device, which is simple in structure and capable of detecting the absolute angle accurately with a high resolution, includes a plurality of ring-shaped magnetic encoders provided concentrically with each other and having different numbers of magnetic poles, each of the magnetic encoders having a magnetization row pattern with magnetic poles arranged circumferentially thereof; a plurality of magnetic sensors each operable to detect a magnetic field emanating from the corresponding magnetic encoder; and an angle calculating unit for determining an absolute angle of the magnetic encoders based on magnetic field signals detected by the magnetic sensors; in which the magnetic encoders are fitted to at least one core metal that is formed integrally with a projection portion protruding towards an encoder support surface side, on which the magnetic encoders are mounted, the projection portion being situated between the neighboring magnetic encoders.

Abstract: An auxiliary bearing system for supporting a rotating shaft including a first auxiliary bearing coupled to the rotating shaft. A first inertia ring is coupled to and circumscribes the first auxiliary bearing. A second inertia ring circumscribes the first inertia ring. A radial clearance is defined between the first and second inertia rings when the rotating shaft is supported by a primary bearing system, and the first inertia ring engages the second inertia ring when the rotating shaft is not supported by the primary bearing system. A second auxiliary bearing is engaged with an outer surface of the second inertia ring.

Abstract: The present invention provides a device and a method to enhance thrust load capacity in a rotor-bearing system. The load-enhancing device comprises a stator and a rotor arranged in such as way as to achieve a magnetic thrust load capacity enhancement by employing at least one permanent magnet, which produces an attracting force or an expulsing force between the rotor and the stator.

Abstract: The magnetic encoder (17) includes a slinger (18) fixed to a rotation-side raceway ring of a bearing and including an outer side surface (22) opposed to the side of a sensor to detect rotation speed of the rotation-side raceway ring and having a surface roughness Ra: 0.3 to 3.0 ?m, and an inner side surface (23) opposed to the side of a sealing member (16) to seal the bearing; a multipolar magnet (19) bonded to the outer side surface (22) through an adhesive; and a film (25b) formed on the inner side surface (23), having a surface roughness Ra of 0.

Abstract: A measurement arrangement for a shaft mounted in a bearing. The measurement arrangement has a magnetic coding and a receiver. The receiver detects a change of the magnetic field of the magnetic coding when the mounted shaft is subjected to mechanical stress. The measurement arrangement is used in conjunction with a shaft mounted in a rolling or sliding bearing. The magnetic coding is disposed at a front end of a bearing component. Also, a rolling bearing and a bearing ring and a seal are disclosed.

Abstract: A rolling bearing device, which has a first bearing ring, a second bearing ring, rolling bodies in a pathway region that is defined between the two bearing rings, a cage device for separating the rolling bodies, and a sensor system for generating a sensor signal relating to the relative rotation of the inner ring in relation to the outer ring. The sensor system is embodied in such a way that the sensor signal is collected on the basis of an interaction effect between a signal tapping element and a structure rotating with the cage device. Thus, it is advantageously possible to create rolling bearing devices which have an integrated sensor system and outer dimensions which correspond essentially to the standard outer dimensions for such rolling bearing devices. Moreover, standard rolling bearings can be modified to form inventive rolling bearings by replacement of the bearing sealing ring.

Abstract: An axial bearing for a high speed open-end spinning rotor mounted without axial thrust in a support disc bearing arrangement has a static magnetic bearing component secured in a bearing housing with at least two axially polarized permanent magnet rings limited by pole discs, and a dynamic magnetic bearing component having ferromagnetic webs on the rotor shaft at the spacing of the pole discs. The static magnetic bearing component (27) is arranged inside a plastic bearing bush (30) and secured by a plastic closing lid (31). The front side of the closing lid (31) has a stop journal (50) forming an axial emergency operation bearing and the rear side has a conically widened fastening lug (51) which is elastically deformed as installed.

Abstract: In an outer ring, a first ball filling slot which extends from a first raceway groove to a first end face of one side of an axial direction is formed, and in an inner ring, a second raceway groove and a second ball filling slot which extends from the second raceway groove to a second end face of one side of the axial direction are formed. Circumferential extension grooves which extend from one of the first ball filling slot and the second ball filling slot by a predetermined length in a circumferential direction at the opposite sides of the circumferential direction of the ball filling slot and extend from the first raceway groove to the first end face in the axial direction are formed.

Abstract: A radially outer stationary bearing race (11) defines, on one if its sides, an inner cylindrical surface (29) and a radial side surface (32). A radially inner bearing race (15) has an outer cylindrical surface (26) facing the inner cylindrical surface (29). A magnetic encoder (23) in form of an annular disc is fixed onto the outer cylindrical surface (26) of the inner race (15) and is protected by a cover of non-ferromagnetic material (30) mounted on the outer race (11) and abutting against the radial side surface (32). The encoder extends radially from the outer cylindrical surface (26) of the inner race (15) up to near the inner cylindrical surface (29) of the outer race (11). No sealing device is mounted in the gap between the cylindrical surfaces (29) and (26).

Abstract: A sensor assembly (3) is sandwiched together with a rubber material (11) mixed with a vulcanizing agent in a mold assembly (2) including an upper mold (9) and a lower mold (10). The upper and lower molds (9, 10), while completely sandwiching the sensor assembly (3), are heated for a predetermined length of time, and a pressure is then applied to the sensor assembly (3) to complete a compressive molding.

Abstract: Embodiments of the invention are directed to keeping a height of a pivot bearing low in order to build a thinner magnetic disk drive. In one embodiment, a ball bearing is provided between a shaft and a sleeve. An inner race of the ball bearing is secured to the shaft through bonding or the like. An outer race of the ball bearing is secured to the sleeve through bonding or the like. A bearing ball is placed between the inner race and the outer race of the ball bearing. A magnet is fitted to the outer race of the ball bearing. A magnet is mounted on a circular plate mounted on one end of the shaft. The magnet is located at a position opposing the magnet mounted on the outer race so as to generate a repulsive force therebetween.

Abstract: The technical field of the invention relates to magnetic sealing devices used for transfer of torque involving rotating parts. Industries that deal in chemicals and pharmaceutics have a requirement to mix materials such as gases and liquids. This is carried out by mixers and agitators and similar other equipment. All devices involve a shaft that comes out of the body of the equipment, that is to say it pierces the equipment. The location at which the shaft enters the equipment is a potential point of leakage. One of the technical problems that the present invention tackles is that of providing a secure sealing that will reduce leakage. The magnetic seal assembly disclosed in the present invention provides a magnetic sealing device that gives a safe, trouble- free, robust, and leak-proof contactless seal for agitator drives and similar equipment used for industrial scale applications.

Abstract: A bearing assembly with a rotation detecting device (20) includes an inner race (21), an outer race (22), rolling elements (23) interposed between the inner race and the outer race, a magnetic generating element (2) provided on the outer ring side of the bearing assembly and having a directionality around a center of rotation of the outer ring so as to confront a bearing center portion of the inner ring, a sensor (3) provided on the inner ring side and positioned at a bearing axis for detecting a magnetism of the magnetic generating element to output information on rotation or angle, and a signal extracting device (28) for extracting a detection signal of the sensor through an interior of a stationary shaft (10) incorporated in an inner diametric portion of the inner ring.

Abstract: A magnet (13) for trapping abraded powder is disposed in a connecting passage between an opening of a sleeve and an opening of a hydrodynamic bearing motor, and a shaft (3), a sleeve (4), a thrust flange (7), and a thrust main plate (5) are made of an austenitic stainless. With this configuration, since the austenitic stainless acting as a nonmagnetic substance is used, it is possible to increase a degree of cleaning. Further, abraded powder of the austenitic stainless is transformed into a magnetic substance, and thus a flow of the abraded powder to the outside can be prevented by providing the magnet for trapping abraded powder in the connecting passage between an opening of a bearing and the outside of the motor.

Abstract: A rolling bearing assembly according to the present invention includes an inner ring, an outer ring, a plurality of rolling elements interposed between the inner and outer rings, and a magnet provided to cause magnetic attraction between the rolling elements and at least one of the inner and outer rings. With the magnetic attraction, it is possible to avoid any collision between the rolling elements and the inner and outer rings, thereby preventing brittle flaking from occurring in the rolling bearing assembly.

Abstract: A spindle motor is provided. The spindle motor includes a base, a bearing housing, a bearing, a rotation shaft, a stator, and a rotor. The bearing housing is installed on the base. The bearing is press-fitted in the bearing housing, and includes a suction magnet installed therein. The rotation shaft is rotatably supported by the bearing, and is drawn by the suction magnet. The stator is supported by the base. The rotor is coupled to the rotation shaft to be rotated through interaction with the stator.

Abstract: A magnetic bearing device includes a main shaft (13), a flange shaped thrust plate (13a) coaxially mounted on the main shaft so as to extend perpendicular to the main shaft and made of a ferromagnetic material, a rolling bearing unit for supporting a radial load and a magnetic bearing unit for supporting one or both of an axial load and a bearing preload, an electromagnet (17) fitted to a spindle housing (14) so as to confront the thrust plate, without contact, a sensor (18) for detecting an axial force acting on the main shaft, and a controller (19) for controlling the electromagnet in response to an output from the sensor. In this magnetic bearing device, the stiffness of a composite spring formed by the rolling bearing unit and a support system for the rolling bearing unit is so chosen as to be higher than the negative stiffness of the electromagnet.

Abstract: A spacer contains a magnetic filler and is disposed between the magnetic conductive balls. The magnetic filler produces an indirect magnetic attractive force on the balls, therefore, when the interval between the two neighboring balls is overlarge, the spacer will not tip over under the effect of gravity or centrifugal force, but will be adsorbed on the balls by the magnetic filler.

Abstract: A motor having improved mechanism is composed of a body of revolution having a mounting hole in the center of the body; a rotor hub having a boss section to be inserted into the mounting hole of the body of revolution and a flange section supporting the body of revolution; and an elastic plate installed coaxially to the rotor hub and pressing the body of revolution on the flange section of the rotor hub, wherein the elastic plate is provided with a plain section having a hole in the center and a plurality of arm sections extending radially from an outer circumference of the plain section, and wherein each of the arm sections is provided with a first slanting section that is inclined with respect to the plain section and a second slanting section having an angle of gradient different from that of the first slanting section, and further wherein the first slanting section contacts with an outer circumferential edge of the boss section that confronts with an inner wall surface of the mounting hole of the body of

Abstract: A journal bearing provides vertical and radial stability to a rotor of a passive magnetic bearing system when the rotor is not rotating and when it is rotating. In the passive magnetic bearing system, the rotor has a vertical axis of rotation. Without the journal bearing, the rotor is vertically and radially unstable when stationary, and is vertically stable and radially unstable when rotating.

Abstract: A coupling device is interposed between an electronic or electro-acoustic component and a supporting structure for draining, transmitting and dissipating vibratory energy generated within the component, while isolating the component from vibratory energy emanating from the support structure, utilizing a ball rolling along a bearing surface in directions away from and toward an equilibrium position, with the ball biased toward the equilibrium position by magnetic attraction forces.

Abstract: A magnetized pulsar ring of the invention is a pulsar ring fixed to an outer peripheral surface of a supporting member and including a ring body in which a number of magnetic poles are at predetermined intervals in a peripheral direction. The ring body 11a is formed of a plastic magnet, and has a cushion member made of an elastic body that is interposed between the ring body and the outer peripheral surface.

Abstract: A magnetic suspension bearing includes an outer layer enclosing a plurality of magnets, an inner layer which enclosing a plurality of magnets, an outer enclosure located at one side of the outer layer and enclosing the outer layer to form a magnetic barrel, and an inner enclosure located at one side of the inner layer and enclosing the inner layer to form a magnetic barrel. when assembling the bearing, the outer layer and the inner layer are assembled together, and the magnets in the inner layer and the outer layer are disposed staggeringly up and down, remaining a gap between each pair of the magnets so as to generate a magnetic suspension force produced from repulsion force between magnets of the same polarity.

Abstract: The present invention relates to a bearing apparatus with a sensor and a rolling bearing with a sensor used to movers such as automobiles or railway carriers, facility machines of equipment, or machine tools. One of the embodiments comprises a sensor detecting conditions of the rolling bearing, a ring-shaped sensor cover housing the sensor therein and secured to a stationary-side bearing ring, and a ring shaped presser member secured to a bearing housing provided outside in a radius direction of the sensor cover, or secured to a shaft, and an opening portion is provided at a decided portion of the sensor cover, and projections standing toward a side of the presser member are furnished in the circumference of the opening portion, the presser member is defined with cutouts for inserting the projections, and the cutouts are arranged with the projections.

Abstract: A rolling bearing assembly equipped with an electric power generator, having: inner and outer members rotatable relative to each other through rolling elements; an electric power generator including a multi-pole magnet assembly mounted on one of the inner and outer members and having a plurality of alternating magnetic poles arranged in a circumferential direction, and a magnetic ring assembly mounted on the remaining one of the inner and outer members and accommodating a coil and confronting the multi-pole magnet assembly; the magnetic ring assembly including a stepped portion of a generally U-shaped section having a peripheral surface portion and an end face portion, said stepped portion being defined on an outer periphery or an inner periphery of one end of the magnetic ring assembly, the magnetic ring assembly being mounted on the remaining one of the inner and outer members with the peripheral surface portion of the stepped portion press-fitted directly onto a peripheral surface of the remaining one of t

Abstract: A rolling bearing assembly equipped with an electric power generator, the assembly having: first and second members rotatable relative to each other through rolling elements; an electric power generator capable of generating an electric power by a relative rotation between the first and second members; and an electric circuit disposed within a yoke forming a part of the electric power generator and utilizing the electric power generated by the electric power generator.

Abstract: In an actuator, displacement resistance in axial movement of a slider is reduced to improve durability and enhance maintainability. At each side of the actuator, a slit is made between a top cover and a side cover. Magnetic bodies are provided on the surfaces of both side walls of the slit which face a fixing block of a slider and a magnetic fluid with a viscosity, surface tension, etc. is held between the magnetic bodies. At each side, the fixing block of the slider axially moves along the slit which is closed by the magnetic bodies.

Abstract: The invention relates to a device for detecting the rotation speed of a rotating element supported by at least one external rotating ring with at least one roller bearing. At least one internal non-rotating ring of the roller bearing is solidly connected to a shaft mounted on a support. The inventive device includes a non-rotating sensor adjacent to the roller bearing and a rotating encoder. The encoder is at least partially fixed by magnetization to a flange which is integral to the rotating ring and which is made from a magnetizable material.

Abstract: The rolling bearing with a built-in motor includes a bearing part including an inner ring, an outer ring and a plurality of rolling elements, and a motor part including a stator and a rotor for driving and rotating the inner and outer rings of the bearing part with respect to each other. In the rolling bearing, the bearing part includes a first bearing ring having a cylindrical-shaped inner fixing portion formed in one end face of the inner ring so as to be coaxial therewith, and a second bearing ring having a cylindrical-shaped outer fixing portion formed in one end face of the outer ring so as to be coaxial therewith. When viewed in the radial direction of the rolling bearing, the stator and rotor are interposed between the inner fixing portion of the first bearing ring and the outer fixing portion of the second bearing ring.

Abstract: An apparatus and method are provided for sealing an outer surface 170 of a shaft 175 to an inner surface 165 of a hub 160. The seal includes a magnet 155, with top and bottom pole pieces 260, 265, and a ferrofluid 270 magnetically held in a gap 275 between the pole pieces 260, 265, and the hub 160 or the shaft 175. The top pole piece 260 has a cross-section that is L-shaped, with a horizontal portion 260a parallel to the magnet 155 and a shorter vertical portion 260b facing the shaft 175. In one version, the vertical portion 260b or the portion of the shaft 175 facing it is contoured to provide a flux gradient that axially concentrates the ferrofluid 270 in the gap 275. In another aspect, a catcher 335 is provided to reduce loss of ferrofluid 270 when the ferrofluidic seal 185 used to form an outside seal. In yet another aspect, a stationary ferrofluidic seal 345 is provided for sealing a stationary shaft 350 to a rotating hub 355.

Abstract: A bearing for the blade assembly of the cooling fan, the bearing is made of the plastic steel material having an integrally formed cylindrical hollow body and outward extended large diameter seat. The seat bottom has a recess with screw thread cut along the inside wall. The bottom recess will receive a powerful magnet and a shield cap to cover. The hollow cylindrical body is a long accommodating cavity and extends upward to form a plurality of claws, each claw has a project point. The rotor shaft of the blade assembly will enter the accommodating cavity. The rotor shaft has a round groove to hold the project points of the claws in place. The rotor shaft is further attracted by the power magnet in the bottom recess so the rotor shaft is always kept along vertical center line, rotates in balance to achieve a stable floating rotation.

Abstract: An antifriction bearing for a magnetic resonance tomography apparatus has magnetic rolling members and an inner ring and an outer ring between which the rolling members roll. The outer ring is surrounded by a nonmagnetic ring.

Abstract: A wheel bearing having an external, rotating, magnetic encoder which registers rotational speed of the bearing, and a magnetic particle trapping device spaced from the magnetic encoder to protect it against contamination. The trapping device includes a permanent magnet and a cooperating soft iron member which together form an L-shaped configuration relative to each other, with the magnet extending axially relative to the rotation of the wheel and the soft iron member extending radially, or vice versa. Contaminants are collected in a space between the soft iron member and the magnet. A magnetically non-conductive element may be provided to separate the trapping device from the metallic housing of the constant velocity joint on which the trapping device is mounted. A wiping finger may be provided to dislodge accumulated contaminant particles, which may then fall to the roadway.

Abstract: Sealing device (1) for a rolling contact bearing (2) presenting an annular sealing lining (5), a protective shield (6) for the lining (5) which is mounted on the outside of the lining (5) itself, and an encoder (15) which is integral to the shield (6) and which is protected by a covering element (16) arranged opposite the shield (6) in relation to the encoder (15).

Abstract: A bearing is provided including a first part provided with a first coil (4) and a second part rotatable with respect to the first part about a bearing axis and being provided with a second coil which is electromagnetically coupled to the first coil. The first and second coil are magnetically enclosed by a first covering and a second covering, respectively. The first covering is fixed to the first part and the second covering is fixed to the second part. An air gap is formed between facing ends of the first and second coverings, with at least one of the facing ends of the first and second coverings being provided with at least one recession, such that the air gap varies when the first part and second part rotate with respect to each other. This may be used to provide an indication of speed (bearing rotation) without further sensors.

Abstract: A ring magnet is attached to an outer ring by a magnet holding unit. A coil hold unit attached with a generator coil is provided at an inner ring to face the ring magnet. A substrate with a transmission circuit and a loop antenna is attached to the coil hold unit. Rotation of the inner ring causes the generator coil to generate power. The generated power is applied to the transmission circuit. A sensor output or the like is transmitted by the transmission circuit as a weak wave via the loop antenna to be received at the stationary side.

Abstract: The invention relates to a protective arrangement with a rolling bearing unit with ABS capability which has a structurally integrated angle transmitter. The angle sensor is connected to a rotatable bearing ring so that it can rotate and has permanent magnet poles for coupling with an external sensor. The invention includes a weak magnetic cover which is located on the rolling bearing unit at a distance from the angle transmitter in such a way that a magnetic shield is formed between the angle transmitter and the environment outside.

Abstract: A precision moving table system for transverse translation and comprising: first and second relatively movable table members, the first member supporting the second member at respective opposing surfaces of the members, at least one of said members comprising a magnet; and a first set of rolling elements held firmly, by magnetic force developed by the magnet, between the opposing surfaces of the members for fully rolling motion along both members to support the second member in transverse translation; wherein at least some of the rolling elements roll along the magnet.

Abstract: A wheel bearing having an external, rotating, magnetic encoder which registers rotational speed of the bearing, and a magnetic particle trapping device spaced from the magnetic encoder to protect it against contamination. The trapping device includes a permanent magnet and a cooperating soft iron member which together form an L-shaped configuration relative to each other, with the magnet extending axially relative to the rotation of the wheel and the soft iron member extending radially, or vice versa. Contaminants are collected in a space between the soft iron member and the magnet. A magnetically non-conductive element may be provided to separate the trapping device from the metallic housing of the constant velocity joint on which the trapping device is mounted. A wiping finger may be provided to dislodge accumulated contaminant particles, which may then fall to the roadway.

Abstract: A roller bearing having a central axis comprising an inner race having a first race track; an outer race disposed concentrically around the inner race with respect to the central axis and having a second race track facing the first race track; and a plurality of rolling bodies disposed between the inner race and the outer race for rolling against the first race track and the second race track. Each of the plurality of rolling bodies has a fixed axis of rotation about which each of the rolling bodies rotates, each of the rolling bodies being rotatably attached to the roller bearing such that the fixed axis of rotation about which each of the rolling bodies rotates remains substantially parallel to the central axis of the roller bearing.

Abstract: A rotary pump for liquid comprising a housing, a shaft carrying a motor rotor, a motor stator fixed in the housing and surrounding the rotary to rotate the rotor and shaft about an axis, where the shaft is mounted in the housing by axially spaced conical bearings each of which includes a first element fixed on the shaft with a first conical bearing surface concentric with the axis and a second journal element carried by the housing with a second conical bearing surface concentric with the axis and slidably engaging the first bearing surface. A biasing element forces the second elements or journal toward each other in an axial direction to compensate for wear between the friction surfaces.

Abstract: A rotary pump for liquid comprising a housing, a shaft carrying a motor rotor, a motor stator fixed in the housing and surrounding the rotor to rotate the rotor and shaft about an axis, where the shaft is mounted in the housing by axially spaced conical bearings each of which includes a first element fixed on the shaft with a first conical bearing surface concentric with the axis and a second journal element carried by the housing with a second conical bearing surface concentric with the axis and slidably engaging the first bearing surface. A biasing element forces the second elements or journals toward each other in an axial direction to compensate for wear between the friction surfaces.