Abstract: A rotary electric machine includes an enclosure delimiting an internal space for stator and rotor units. An access hole gives access to the internal space. An internal gasket encircles the access hole adjacent a wall of the enclosure. A closing element is disposed in the internal space, movable towards and away from the wall between a closed configuration compressing the gasket to seal the access hole and an open configuration connecting the internal space with the surrounding atmosphere. An elastic device operates to move the closing element from the open to closed configurations to compress the gasket and seal the access hole. The closing element has a pressure surface facing the access hole and accessible through the access hole via a pin. Pressing the pressure surface causes the closing element to move from the closed configuration to the open configuration.

Abstract: A liquid pump/motor combination powered by an electric motor, preferably, an oil pump or reducing-agent pump with an electric motor, a positive displacement pump and a bearing shield arranged between the electric motor and the positive displacement pump. The liquid pump/motor combination comprises a positive displacement pump; an electric motor; and a bearing shield having a contact face, the bearing shield arranged between the electric motor and the positive displacement pump. A spherical bearing is accommodated in the bearing shield, the spherical bearing, under application of a force, being able to swivel to a limited extent. A connecting shaft is accommodated in the spherical bearing. The connecting shaft is positioned between the electric motor and the pump. An annular bearing gap, filled with liquid, is between the inside diameter of the spherical bearing and the connecting shaft. The arrangement functions as a hydrodynamic sliding bearing.

Abstract: A motor may include a rotor including a shaft; a stator arranged radially outside of the rotor; a bearing arranged on an upper side of the stator; a tubular housing; a bearing holder arranged on the upper side of the stator; and a busbar unit arranged on an upper side of the bearing holder. The rotor may include a rotor magnet fixed to the shaft. The stator may include an annular core back; teeth arranged to extend radially inward from the core back; and coils wound around the teeth. The housing may include a housing inner circumferential surface arranged to hold the stator. The bearing holder may be arranged to be in contact with the housing inner circumferential surface. The busbar unit may be arranged to be in contact with the housing inner circumferential surface.

Abstract: An improved bearing for use in movable sockets and suspension joints. The improved bearing is annular, having an outer dimension sized to seat within the housing of a suspension joint or movable socket. An inner surface of the bearing is configured to receive the head of an articulating stud within the housing. Three or more radial slots are disposed on the inner surface. Each radial slot disposed on one-half of the bearing inner surface has a unique radial dimension, such that the radial slots are optimally configured to minimize stress and stiffness within the improved bearing, whereby the bearing can be seated within the housing in a radially and rotationally locked configuration, but remain movable in an axial direction.

Abstract: An automatic assembly machine includes a basis (10), a sliding device (30) horizontally movably attached on the basis for supporting a fan (40) thereon, a tube (27) fixed to the basis for receiving a plurality of bearings (28) therein, a diversion station for provisionally holding one bearing thereon, a mounting device (70) vertically movably attached to the basis, a horizontal driving device (60), a vertical driving device (80), and a control device (90) for controlling periodical movement of the horizontal and vertical driving devices. In one period, the vertical driving device drives the mounting device to catch the bearing from the diversion station and then the horizontal driving device drives the sliding device and the diversion station to move to allow the diversion station to receive another bearing from the tube and the mounting device to mount said bearing to the fan upon driven of the vertical driving device.

Abstract: In a bearing holding structure in which a bearing whose outer circumferential surface is formed in a spherical shape is sandwiched between an end frame and a holding plate, the holding surfaces of the end frame and the holding plate extend axially in opposite directions to each other and each of the holding surfaces is tapered axially to expand straight toward the opposing holding surface. Accordingly, the bearing holding structure may be easily formed with simpler shape of the holding surfaces.

Abstract: An electric drive unit for windshield wipers of a motor vehicle, including a drive motor having an armature accommodated in a substantially cup-shaped pole housing, a substantially cup-shaped gearbox, secured on a face end to the pole housing, for receiving gear elements that convert the rotation of an armature shaft of the armature, supported on one end in the pole housing and on the other end in the gearbox. The armature shaft, adjacent to a bottom of the pole housing, is supported in a cylinder bearing mounted with a press-fit, whose outer diameter is greater than or equal to three times a length of the cylinder bearing.

Abstract: In order to simplify the adjustment of an axial play of a rotor shaft (2.4) between the rotor shaft (2.4) and a stator (1) of a motor with the purpose of reducing the component expenditure and the assembly expenditure of the motor, a first clamp holder (3) and a second clamp holder (4) exert pressure on both sides of a plain bearing (5). In a first step, a rotor (2) of the motor is positioned relative to a housing (1.3) of the motor. A bearing receiver (1.1) is then fixed relative to the housing (1.3) of the motor by inserting, at an axially inner end of the bearing receiver (1.1), the second clamp holder (4); by moving the second clamp holder (4) to a second operating end position; and by fixing the second claim holder (4) at the second operating end position. Next, at an axially outer end of the bearing receiver (1.1), the plain bearing (5) and the first clamp holder (3) are axially inserted into the bearing receiver (1.1).

Abstract: In order to simplify the adjustment of an axial play of a rotor shaft (2.4) between the rotor shaft (2.4) and a stator (1) of a motor with the purpose of reducing the component expenditure and the assembly expenditure of the motor, respective clamp holders (3;4) exert pressure on both sides of a plain bearing (5). These clamp holders (3;4) are axially moved to respective operating end positions in a bearing receiver (1.1;7.1). There, the clamp holders (3;4), which have different spring stiffniess, are fixed by respective claws. The clamp holder (3) which has the higher spring stiffness adjusts the axial play of the rotor shaft (2.4) while the clamp holder (4) which has the lower spring stiffness exerts, in particular, an elastic axial pressure against the plain bearing (5) and, therefore, against the first clamp holder (3).

Abstract: An electric motor having a housing, having an armature, having an armature shaft supported in two slide bearings, where one of the slide bearings axially displaceably receives the armature shaft and the other slide bearing limits an axial displaceability of the armature shaft by the disposition of a stop disk between a slide bearing bush of the slide bearing and the armature, by the disposition of an axial stop, in the form of a stop ring pressed over one end of the armature shaft. The armature shaft end protrudes out of the housing and is intended for carrying and driving a fan wheel that has a hub which is located adjacent the particular a slide bearing that receives only radial forces.

Abstract: A stationary washer in a motor is positioned on a shaft intermediate the motor rotor and a bearing. The shaft extends through the washer, rotor, and bearing. The stationary washer is free to move laterally and to tilt to insure that it remains in alignment with the bearing when the shaft tilts from its preferred normal orientation.

Abstract: A bearing 4 is accommodated within a cylindrical bearing support portion 2 projecting from an end surface of a motor casing 1 made of a metal. The bearing 4 has an outer diameter smaller than the inner diameter of the bearing support portion 2 such that a clearance is formed between the bearing 4 and the bearing support portion 2. At an approximate center of the bearing 4 with respect to the thrust direction, a projection 19 is continuously or non-continuously formed on the inner circumferential surface of the bearing support portion 2 along a circular line centered on the motor shaft. Further, a depression 20 corresponding to the projection 19 is continuously or non-continuously formed on the outer circumferential surface of the bearing 4 along the circular line. Thus, the bearing 4 is supported within the bearing support portion 2 in such a manner that thrust movement is prevented, but slight tilting about the projection 19 is permitted.

Abstract: A bearing system and journal which may incorporate either a sleeve or a ball bearing. The system includes a bearing journal having a sleeve bearing portion and a ball bearing portion. When a sleeve bearing is used in the system, a first end of the sleeve bearing is supported in the sleeve bearing portion of the journal, and a second end of the sleeve bearing is supported by a finger spring. The sleeve bearing and finger spring are retained within the journal by an end cap, which is press-fit into the ball bearing portion of the journal. When a ball bearing is used in the system, the ball bearing may be press-fit directly into the ball bearing portion of the bearing journal, or press-fit into a spacer, which is press-fit into the ball bearing portion of the bearing journal.

Abstract: In a bearing holding structure in which a bearing whose outer circumferential surface is formed in a spherical shape is sandwiched between an end frame and a holding plate, the holding surfaces of the end frame and the holding plate extend axially in opposite directions to each other and each of the holding surfaces is tapered axially to expand straight toward the opposing holding surface. Accordingly, the bearing holding structure may be easily formed with simpler shape of the holding surfaces.

Abstract: A bearing retainer ring having a compliant tab is mounted on a motor shaft between a C-ring mounted on the shaft and one or more washers and a bearing mounted on the shaft. After completion of the construction of the electric motor, the shaft is loaded axially, deforming the projecting tab and providing axial end play between the bearing and its adjacent washer.

Abstract: A floating sleeve bearing assembly for supporting the shaft of an electric motor, the shaft having an axis of rotation and the motor having a stator. The sleeve bearing assembly includes a bearing having therein a bore for receiving the shaft. The bearing has a plurality of cylindrical outer surface portions that are centered on respective axes which are substantially perpendicular to the axis of rotation and which all lie in the same plane substantially perpendicular to the axis of rotation. The sleeve bearing assembly also includes a bearing support bracket having an axis and including a main body fixable relative to the stator. The bracket further includes a plurality of circuitously spaced resilient projections extending from the main body and generally parallel to the bracket axis.

Abstract: A pendulum sliding bearing has a sliding bearing bushing provided for receiving a rotatable elements, such as shafts, axles and the like, the sliding bearing bushing having calotte portions at end sides, a bearing body formed of a metal plate and having a ring-shaped abutment surface for one of the calotte portions of the sliding bearing bushing, a wall extending substantially outwardly of the abutment surface, and a casing adjoining the wall and provided for insertion in a cylindrical opening, a spring disk having a central opening and an adjoining at least one second abutment surface for the second calotte portion of the sliding bearing bushing and having a radially outer edge fixed on the bearing body, the casing being subdivided into casing fields which extend substantially parallel to a longitudinal axial of the bearing body so that gaps are available between the casing fields, a plurality of supporting fingers extending at least over a width of the gaps from the wall in a direction opposite to a course

Abstract: A rotating shaft of a rotating machine is supported at its both ends by bearing bushes which are held in a frame of the rotating machine. The outer periphery of the bearing bush is rounded and held with a rounded surface formed on the frame, so that the rotational axis of the shaft and the bearing are self-aligned by rotation of the bearing bush. The inner bore of the bearing bush rotatably supporting the shaft therein is shortened by forming a relief bore, the diameter of which is larger than that of the inner bore. Because of this bearing structure, a natural vibration frequency of the shaft varies less, and, therefore, the rotating machine can be easily designed so that harmful noises due to the natural vibration are sufficiently suppressed.

Abstract: The invention provides a motor and a bearing support and motor housing assembly, wherein the bearing support is detachably mounted to the housing with a flexible fastener, such as a snap ring. A resilient member, such as a spring washer, is seated between the fastener and either the housing or the bearing support to apply a biasing force against the fastener.

Abstract: A bearing retainer for use in a dynamoelectric machine having a rotating shaft and a bearing having a passage therethrough for rotatably receiving the shaft and being positioned within a bearing seat, includes inner and outer concentric support elements. The inner support element defines a thrust portion. Each of the inner and outer support elements defines a plane. A plurality of connectors extend between and connect the inner and outer concentric support elements. The connectors are configured so as to support the inner support element in concentric relation to the outer support element and to support the inner and outer support elements such that the planes defined thereby are non-coplanar with one another. A plurality of bearing load support projections extend inwardly from the outer concentric support element. The support projections extend inwardly a distance so as to define a gap between an end of each projection and the inner support element.

Abstract: An electrical motor has bearing support structures which self adjust to axially align bearings. The bearings may tip--but not rotate--within supporting sockets so that the bearings may self align to accommodate a shaft passing through them. The bearings are somewhat barrel shaped to fit into somewhat spherical shaped sockets on plastic bridges. The bearings have longitudinal grooves and the sockets have tabs that fit into the grooves to restrain bearing rotation while allowing a tipping which produces the self alignment.

Abstract: A brushless motor having a plurality of weight reducing holes is disclosed. The weight reducing holes are formed in the thick parts of the stator housing of the motor to prevent shrinkage of the thick parts of the housing when forming the housing through injection molding. The weight reducing holes are formed in the housing by appropriately positioning cores in the mold before injecting melted resin into the mold. The weight reducing holes are formed in a bearing seat mouth of the housing as well as in an outer portion of the mouth.

Abstract: An end frame assembly for an electric motor is described. In one embodiment, the assembly includes an endshield, a bearing, an oil wick, and an oil well cover. The oil well cover has at least one endshield engagement tang for aligning with and being secured within an oil well cover engagement opening in the endshield and at least one bearing alignment finger for assisting in maintaining the bearing oriented with respect to a rotor shaft.

Abstract: A bearing assembly including a bearing member with a passageway therethrough at least in part defining a cylindrical journaling surface having a central axis and a preselected axial length is described. A partial circumferential or spherical surface on at least a part of a peripheral portion of the bearing member extends generally coaxial about the cylindrical journaling surface. A bearing seat supports the bearing member at a generally circular line of engagement defining an imaginary plane extending generally perpendicular to the central axis through the mid-point of the preselected axial length of the cylindrical journaling surface.

Abstract: A bearing retaining device is provided to maintain a shaft bearing within a housing. In one embodiment the device has a housing with a central bore into which is received a bearing. The bearing rests upon a bearing seat and is maintained in the housing by a retainer clip. The retainer clip is generally disc shaped with a number of spring tab members extending at an angle therefrom. When the retainer clip is rotated within the housing, the spring tab members are compressed by brush holders protruding into the housing and above the retainer seat. The spring tab members spring back to position after clearing the protrusions and dimpled ears formed in the retainer clip body frictionally engage the brush holders. The trailing edge of each spring tab member grips the side of each brush holder. The bearing is thereby locked into the housing and displacement and vibration thereof are eliminated.

Abstract: A bearing retainer 20 has a hollow body 21 with an open end forming a mouth 25. The mouth opens into an inner void 23 having a bearing support surface 28 for receiving a bearing. The void also has a plurality of axially extending ribs 30 defining a number of lubrication reservoirs or recesses 33. A plurality of teeth 26 extend axially from the open end for engaging a hole in the motor casing to prevent rotation between the retainer and the casing and are deformable to prevent axial separation. Proud co-planar abutment surfaces 27 are respectively disposed between adjacent teeth and bear against the casing to axially align the casing and retainer. The bearing is made by forging, casting or sintering.

Abstract: A bearing device for miniature motors comprising a stator formed by fitting an end plate to an open end of a housing formed into a bottomed hollow cylindrical shape. A rotor rotatably supported by bearings is provided on the housing and the end plate. A bearing retaining body is provided formed of a resin material into a basket shape. The bearing retaining body has such a construction that a flange and a bottom member, both formed into a ring shape, are connected by a plurality of axially extending and circumferentially disposed connecting members. A plurality of axially extending support columns are disposed in the circumferential direction on the inner edge surface of the bottom member. The bearing retaining body is fitted to a retaining part provided on the housing and/or the end plate, and a ball bearing is supported via the supporting claims.

Abstract: A structured product family of dynamoelectric machines for use in a plurality of applications has a frame with a closed end, and a set of permanent magnets is adhesively secured within the frame. An armature disposed in the frame for interaction with the permanent magnets includes a shaft, a core having a set of winding receiving slots therein, and a commutator. During manufacturing and assembly, stress on the motor shaft and commutator is minimized. A brush plate is associated with the frame for locating a set of brushes relative to the commutator, and an end shield is secured to the frame opposite its closed end. At least one freely aligning bearing assembly disposed in the end shield for freely aligning the shaft and including a bearing and a retainer having predetermined conditions preset with the retainer being adhesively secured to the end shield. A bracket is adhesively secured to the frame for connecting the dynamoelectric machine in anyone of the applications; and a novel brush assembly is provided.

Abstract: An angularly biassed self-aligning bearing has a bearing member which is seated in a housing and held in place by a retainer which urges a first external, part-spherical, surface-of-revolution on the bearing member axially into engagement with an internal, part-spherical, surface-of-revolution formed in the housing. The retainer has first and second resilient retaining members which engage opposite sides of a transversely extending first portion of a second external surface-of-revolution on the bearing member. The first resilient retaining members exert greater loading on the bearing member than the second resilient retaining members so that the bearing member is tilted relative to the housing.

Abstract: A fractional horsepower motor has a thrust bearing assembly mounted on the motor shaft to dampen the axial movement of the shaft. The assembly includes a thrust collar formed of resinous material and a thrust plate formed of metal with a wave spring positioned therebetween. Apertures in the thrust plate receive resilient hook projections formed on the thrust collar as a means for coupling the plate to the collar. Torque transmitting projections formed on the thrust collar engage notches formed in the thrust plate. The hook projections and the torque transmitting projections act together to capture and hold the wave spring between the collar and plate.

Abstract: A self-adjusting pivot mechanism for a car steering column arranged to take up wear and backlash, the mechanism including a housing bracket 9 for receiving a steering column 10, the housing having opposed symmetrical tapered trunnions 9A received in corresponding female tapered portions 11A of housing support brackets 11. The male and female tapered portions are resiliently urged towards one another by means of sprag washers 12 secured on extremities of the tapered portions 11A, which washers draw the parts 9A and 11A towards one another. Relative rotational movement between the portions 9A and 11A is accommodated.

Abstract: A bearing device for miniature motors having a cylindrically-shaped bearing support formed by pressing an end face of a metallic motor case, and a bearing press-fitted into the bearing support to rotatably support a motor shaft, characterized in that a pressed groove is formed on the outer circumferential surface of the bearing support by pressing the outer circumferential surface is disclosed. A method of making a bearing device for miniature motor in which the clearance between the bearing and the motor shaft is set by pressing the outer circumferential surface of the bearing support using a pressing jig in a state where the motor shaft is inserted into the bearing is disclosed.

Abstract: An end shield and bearing assembly for an electric starter motor for internal combustion engines comprises a bearing extension and a bearing for supporting a drive shaft and received in the bearing extension. A cover cap is fitted over the bearing extension of the commutator end shield and encloses the end of the drive shaft and an armature longitudinal play compensator mounted on the above shaft end. A member is located lubricant-tight in the cover cap between the end face of the bearing extension and the cover cap and defines a lubricant space surrounding the compensator.

Abstract: The disclosed clamping plate exhibits a particularly great spring action and it includes a clamping rim (10) and with spring tabs (20) which point radially inward and against which the cups of the self-aligning or cup-type bearing make contact. According to the invention the spring tabs (20) are particularly long and extend from the clamping rim (10). The tabs also bend inwardly over a bead (9) limiting the clamping rim (10). An especially inexpensive design from the aspect of production engineering and assembly is achieved in that the transition from the bead (9) to the plug-in hole (2) is rounded in the plug-in direction (6) of the clamping plate and the lower area of the bead (9) is designed as oil collecting groove.

Abstract: Automatic self-aligning ball metals rotatably mounted at both end parts of a rotor shaft in an electric motor are supported by holding devices. The holding device is designed in the form of a disc having a flange portion around the outer periphery thereof. It is formed with a plurality of pawls having different intensities of resilient force which extend in the radial direction from an area located in the proximity of the flange portion. The pawls having a higher intensity of resilient force and the pawls having a lower intensity of resilient force are alternately arranged in the peripheral direction of the holding device and the inner part of each of the pawls is bent at a certain inclination angle. The pawls having a lower intensity of resilient force are adapted to come in contact with the metal ball earlier than the pawls having a higher intensity of resilient force. Each of the pawls having a higher intensity of resilient force has a width wider than the pawls having a lower intensity of resilient force.

Abstract: A structured product family of dynamoelectric machines for use in a plurality of applications has a frame with a closed end, and a set of permanent magnets is adhesively secured within the frame. An armature disposed in the frame for interaction with the permanent magnets includes a shaft, a core having a set of winding receiving slots therein, and a commutator. During manufacturing and assembly, stress on the motor shaft and commutator is minimized. A brush plate is associated with the frame for locating a set of brushes relative to the commutator, and an end shield is secured to the frame opposite its closed end. At least one freely aligning bearing assembly disposed in the end shield for freely aligning the shaft and including a bearing and a retainer having predetermined conditions preset with the retainer being adhesively secured to the end shield. A bracket is adhesively secured to the frame for connecting the dynamoelectric machine in anyone of the applications; and a novel brush assembly is provided.