Abstract: The invention relates to a volumetric compressor (100) including a container (51) for collecting the lubricant moved by an oil distribution disc (1). The compressor (100) further comprises at least two lubricant distribution channels (52), in which each lubricant distribution channel (52) extends from the collecting container (51) so that during operation, the lubricating oil flowing along the channel itself reaches a lubrication opening (82) of a lubrication duct (81) for a rolling bearing (90) of a rotor (80?, 80?). The lubrication opening (82) is arranged at a lower level with respect to the container (51).

Abstract: In a rotary compressor, a lower end plate includes a lower discharge valve that opens and closes a lower discharge hole, a lower discharge-valve accommodating recessed portion in which the lower discharge valve is accommodated, and a lower discharge-chamber recessed portion that is formed so as to overlap with the lower discharge hole side of the lower discharge-valve accommodating recessed portion and communicates with a refrigerant passage hole. A lower end plate cover is formed in a flat-plate shape and is provided with a bulging portion having a portion facing the lower discharge hole. An upper end-plate cover chamber is formed by the lower discharge-valve accommodating recessed portion, the lower discharge-chamber recessed portion, and the bulging portion. The bulging portion has a volume of 1/18 or greater and 1/9 or less of a total of air volumes of an upper compression chamber and a lower compression chamber.

Abstract: A seal member includes pushing projections that project from a seal body toward at a groove inner-side circumferential surface and are arranged at intervals in a circumferential direction of the seal body. The pushing projections push the seal body against the groove inner-side circumferential surface and a groove outer-side circumferential surface between the groove inner-side circumferential surface and the groove outer-side circumferential surface. This reduces the gap between the groove outer-side circumferential surface and the seal member in the seal accommodating groove. Thus, salt water is unlikely to collect in the gap between the groove outer-side circumferential surface of the seal accommodating groove and the seal member. This improves the corrosion resistance of the housing and the seal member.

Abstract: Embodiments to help detect operation conditions of a compressor of a TRU in real time by a genset are disclosed. The operation conditions of the compressor can be determined by monitoring a parameter pattern of the genset, such as value changes of a horsepower, a torque, an exhaust temperature, fuel consumption and/or a RPM of a prime mover of the genset, or a current drawn from a generator of the genset, over a period of time. In one embodiment, when a scroll compressor is used in the TRU, the scroll compressor may start a periodical load/unload duty cycle when the TRU reaches its setpoint. The periodical load/unload duty cycle of the scroll compressor can be detected based on a corresponding fluctuation pattern in genset parameters. When this periodically fluctuating pattern of ECU parameters and/or current drawn is detected, the prime mover can be switched to a low operation speed.

Abstract: A screw compressor, method of operating, and refrigerant circuit are disclosed. The screw compressor includes a suction inlet that receives a working fluid to be compressed. A compression mechanism is fluidly connected to the suction inlet that compresses the working fluid. A discharge outlet is fluidly connected to the compression mechanism that outputs the working fluid following compression by the compression mechanism. A valve assembly is configured to vary a location at which the compression mechanism compresses the working fluid, the valve assembly being disposed to modify a suction location of the screw compressor.

Abstract: A screw compressor, refrigerant circuit, lubrication method are disclosed. The screw compressor includes a suction inlet that receives a working fluid to be compressed. A compression mechanism is fluidly connected to the suction inlet. A discharge outlet is fluidly connected to the compression mechanism that outputs the working fluid following compression by the compression mechanism. The screw compressor includes a slide valve that is movable between a first position and a second position. The first position corresponds to a high volume ratio and the second position corresponds to a low volume ratio. The slide valve includes a plurality of lubricant passageways selectively connectable to a lubricant source. A first of the plurality of lubricant passageways is configured to be selected to provide lubricant at the high volume ratio, and a second of the plurality of lubricant passageways is configured to be selected to provide lubricant at the low volume ratio.

Abstract: A method for controlling an ESP-lifted well in an optimal fashion using the ESP speed and choke opening as actuators subject to operational constraints.

Abstract: A flush-mounted fan system for an industrial ventilation system includes a fan device equipped with a blade group and an electric motor group. The electric motor group includes a drive shaft on which the blade group is mounted, an electric motor operatively connected to the drive shaft, and an electronic command device of the electric motor. The flush-mounted fan system also includes a flush-mounted frame housing the fan device including a flush-mounted box and a bracket group for supporting the fan device.

Abstract: An electric blower includes a motor, a fan to generate a first air current, a fan to generate a second air current, and a housing. The first air current and the second air current are exhausted from the housing in opposite directions to each other in the axial direction.

Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, an impeller arranged in a main flow path and including a plurality of vanes. The impeller is configured to rotate about an axis. A channel is outside the main flow path. A first orifice fluidly couples the channel to the main flow path upstream of the vanes, and a second orifice fluidly couples the channel to the main flow path downstream of leading edges of the vanes.

Abstract: What is needed is a system that a system that may allow a consumer to adapt a light source to customize a room. Accordingly, the present disclosure relates to a system that may be adapted to a range of features, wherein the system may convey a preference for a sport, sports team, college, or other source of fandom. In some embodiments, a sport cover may be integrated with a feature, such as a fan, wall mount, chandelier, or lamp. In some aspects, the sport cover may comprise a range of customizable attributes, such as colors, sounds, images, and sport cover types. According to the present disclosure, a consumer may change out the light fixture on the fan to with an adaptable or convertible sports cover.

Abstract: A centrifugal compressor includes a partition wall that is arranged between a ring member and the bottom of a main body in a speed-increaser chamber. The centrifugal compressor further includes an introduction passage that guides oil in a stirring region to a storage region. The stirring region includes a region between the partition wall and the ring member in the speed-increaser chamber. The storage region includes a region between the partition wall and the bottom of the main body in the speed-increaser chamber. The oil that has been stirred by rotation of the ring member collides the inner circumferential surface of a speed increaser housing before flowing toward the partition wall. The oil is then guided to the storage region via the introduction passage. Since the oil stored in the storage region is unlikely to be stirred by rotation of the ring member, only a small amount of oil is stirred by the ring member.

Abstract: An impeller for use in an aquarium filter pump includes a shaft and a plurality of impeller blades radially extending from the shaft. Each of the impeller blades includes opposite blade faces. A depression is in each of the blade faces and aids in pushing the water. The depression can be a variety of shapes and can have its deepest portion along one of the edges of the blade.

Abstract: A blower includes a rotor blade rotatable about a central axis extending in an axial direction, a motor that rotates the rotor blade, and a housing that surrounds the rotor blade and the motor. The housing includes stator blades extending in a forward rotation direction of the rotor blade toward an axially lower side of the blower, a porous wall including multiple holes arranged in both the radial direction and in the circumferential direction, and a cylinder portion extending in the axial direction and radially outward of the porous wall. The hole penetrates the porous wall through upper to lower surfaces thereof. The stator blade is axially below the rotor blade. An axially upper end portion of the porous wall is between an axially lower end portion of the rotor blade and an axially upper end portion of the stator blade.

Abstract: A vacuum pump housing a rotor, comprises: a first case including a first flange; and a second case including a second flange, connected to the first case through the first flange and the second flange, and arranged on an exhaust port side with respect to the first case. The first flange and the second flange are fastened to each other with a bolt, and the first flange includes a first recessed portion formed corresponding to an attachment position of the bolt ata surface, and the second flange includes a second recessed portion formed corresponding to the attachment position of the bolt at a surface.

Abstract: The invention relates to centrifugal pumps and can be used for pumping oil and other fluids along pipelines. A pump comprises a set of strength elements in the form of reinforcing ribs connecting a pump housing to the surfaces of supporting feet of the pump. The fastening surfaces of the feet are situated along the central axis of the inlet and outlet lines. The feet are connected by the reinforcing ribs to the inlet and outlet lines and to bearing assembly housings and connect the housings to one another. The feet themselves are connected to each other in pairs by ribs which pass below the base of the pump housing. The base and the cover of the housing are configured with interior chambers which form an inlet and an outlet. All of the ribs are integral with the cover or the base. The invention is directed toward increasing the reliability and working life of the pump by reducing vibration loads and increasing leak tightness while at the same time minimizing the material requirements of the pump structure.

Abstract: A waterproof blower includes a casing and at least four drain holes placed along a circumferential direction of the casing in the outer peripheral wall portion, in the first side wall portion, or in the second side wall portion of the casing. The at least four drain holes communicate with the inside and the outside of the casing. The at least four drain holes each have an opening on an inner side of the casing. The openings of adjacent two drain holes of the drain holes as viewed in a direction of a rotation axis of the impeller are placed at positions where a straight line as a chord linking portions, which are located on the outermost peripheral side of the casing, of opening edges at the shortest distance hardly intersects with the impeller.

Abstract: A compressor is disclosed for a charging device of an internal combustion engine. An iris diaphragm mechanism is arranged upstream of the compressor wheel. An actuator is mechanically coupled to an adjusting ring of the iris diaphragm mechanism for transmitting torque of an actuator shaft to the adjusting ring for rotating the adjusting ring. A pivotable coupling pin is arranged eccentrically on the actuator shaft and has a bearing bush which is displaceable along a longitudinal axis of the coupling pin. The bearing bush is mounted between two fingers of an adjusting lever of the adjusting ring so as to be displaceable along the fingers. An outer contact surface of the bearing bush is spherical. Inner contact surfaces of the two fingers are cylindrical to correspond to the spherical outer contact surface of the bearing bush and are in sliding contact with the outer contact surface of the bearing bush.

Abstract: A radial compressor has an iris diaphragm mechanism for a pressure-charging device of an internal combustion engine. The radial compressor has a bearing assembly, in which a rotor shaft is rotatably mounted, having a compressor impeller arranged in a compressor housing for conjoint rotation on the rotor shaft and having a fresh air supply channel for carrying a fresh air mass flow to the compressor impeller. The iris diaphragm mechanism is upstream of the compressor impeller, allowing variable adjustment of a flow cross section for the fresh air mass flow for admission to the compressor impeller, at least over a partial region. The iris diaphragm mechanism has a plurality of blades, each having at least one first and one second blade section, wherein an offset is formed between the first blade section and the second blade section of the respective blade.

Abstract: A radial compressor comprising an iris diaphragm mechanism for a charging device of an internal combustion engine. The charging device comprises a radial compressor and a lamella for the iris diaphragm mechanism. The radial compressor has an impeller which is rotationally fixed to a rotatably mounted rotor shaft; and a fresh air supply channel for conducting a fresh air mass flow to the impeller. An iris diaphragm mechanism is arranged upstream of the impeller such that a flow cross-section for the fresh air mass flow for admission to the impeller can be variably adjusted at least over a sub-region. The iris diaphragm mechanism comprises several lamellae, wherein each lamella has a lamella base body with an inner edge portion for delimiting the diaphragm aperture, and the inner edge portion of each lamella has an inner edge, which is blunt-edged, on a side facing away from the impeller.

Abstract: A blower includes a moving blade, a motor, and a housing. The housing includes a holding portion located below the moving blade to hold the motor, and a peripheral wall portion having a cylindrical shape centered on the central axis and extending upward from a radially outer end portion of the holding portion. The peripheral wall portion includes a peripheral wall recess that is recessed downward from an upper end portion of the peripheral wall portion and connects a space radially inside of the peripheral wall portion and a space radially outside of the peripheral wall portion, and includes a first peripheral surface facing one circumferential direction that is opposite to a rotation direction of the moving blade. The first peripheral surface extends in one circumferential direction from the upper end of the peripheral wall recess toward the lower side.

Abstract: The present invention is directed to a portable fan for the use in firefighting and other ventilation use-cases. The portable fan provides firefighters the ability to provide positive pressure ventilation in use for fighting fires which does not require power cables or combustible fuel powered motors, and provides increased portability, reduced risk, and reduced deployment time associated with managing and fighting a fire.

Abstract: A centrifugal compressor includes one or more impellers, a casing which covers the one or more impellers, and a silencer. The casing includes a radial passage which guides a gas flowing out from a final stage impeller to a radially outer side, and an outlet scroll passage which communicates the radial passage with an outlet. The silencer includes a perforated plate in which a plurality of acoustic holes are formed, and a space forming body which forms an acoustic space connected to the plurality of acoustic holes. A first surface of the silencer opposite to a surface of the perforated plate defining the acoustic space forms at least part of an inner surface of the casing which defines the outlet scroll passage.

Abstract: There is provided a fluid control device that enables accurate control of a fluid flowing through a flow path. This fluid control device includes a block body having an internal flow path, a resistor provided within the flow path, a first pressure sensor upstream of the resistor, a second pressure sensor downstream of the resistor, and fluid control valves that control the fluid based on detection values from the pressure sensors. The block body further has an internal housing portion forming a portion of the flow path and housing the resistor. Additionally, a downstream-side flow path downstream of the housing portion has a base end connected to a downstream-side area through which flows the fluid that has already passed through the resistor. Moreover, the second pressure sensor is connected to the downstream-side area or to a vicinity of the base end.

Abstract: Provided is an electric work vehicle having a simple configuration, yet allowing a hydraulic cylinder to function appropriately even in a low-temperature environment. An electric work vehicle includes a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder and includes also a hydraulic system for feeding work oil to these hydraulic cylinders and a traveling motor. The hydraulic system includes an oil heating circuit for heating the work oil using heat generated from the traveling motor.

Abstract: A construction retention system. The system includes a construction clip having a body portion coupled to an elongated portion and a shortened portion. The body portion includes a carrying rod receiving portion disposed between elongated portion and the shortened portion. The clip includes a first tab coupled to a proximate end of the body portion. The carrying rod receiving portion receives a carrying rod. The first tab receives a tensioning wire. The system further includes a beam clamp removably secured to an I-beam and secures the carrying rod. The construction clip is removably secured to the beam clamp and to the carrying rod. The tensioning wire tension-secures the construction clip to the carrying rod and the beam clamp.

Abstract: An apparatus is disclosed. The apparatus has a an adjustable attachment assembly including at least one movable member, a body assembly that is movably attached to the adjustable attachment assembly, a movable assembly that is movably attached to the body assembly, a power storage disposed in at least one of the movable assembly and the body assembly, and a device stand assembly movably attached to the movable assembly. The adjustable attachment assembly is movable in a first direction relative to the body assembly. The movable assembly is movable in a second direction relative to the body assembly that is different from the first direction.

Abstract: A u-shaped metal portion and a u-shaped plastic portion can be coupled together to define an interior rib receiving cavity between both the metal sides and the plastic sides. The u-shaped metal portion can include a first metal rib retention barb extending interiorly of the plastic portion in the interior rib receiving cavity and can be designed to engage the rib to couple the dual material U-base fastener to a first component rib with the rib received within the interior rib receiving cavity. The u-shaped plastic portion can include a first plastic aperture retention wing extending exteriorly of the metal portion and designed to engage a second component aperture to couple the dual material U-base fastener to the aperture with the inner plastic and outer metal insertion ends extending through the aperture.

Abstract: A tolerance compensation fastening apparatus (1) for fastening a first vehicle component (200) to a second vehicle component (300) by way of a bolt (100), the fastening apparatus being set up to compensate for a tolerance within a tolerance compensation range. A fastening system including such a fastening apparatus, as well as to a method for fastening a first vehicle component to a second vehicle component by way of a bolt.

Abstract: The present disclosure provides an edge clip assembly for attachment of a component, and, more specifically, to an edge clip assembly which is self-locking. The edge clip assembly includes a clip body and a spacer provided within the clip body, and further includes an interlock securing the spacer in a final position in which the clip body can be engaged with the component to hold the component under tension.

Abstract: A method is provided for fitting a snap fit arrangement, as well as a fitting arrangement for fitting the snap fit arrangement for joining a first part with a second part. The snap fit arrangement comprises an engagement hook which is arranged at the first part. The snap fit arrangement comprises a latch element which is arranged at the second part. When the snap fit arrangement closes, the engagement hook deforms elastically and engages into the latch element. In the method, an auxiliary tool is provided. The elastic deformation is caused in the engagement hook by means of the auxiliary tool. The first part is joined to the second part and retracting the auxiliary tool. Retracting causes a spring-back of the elastic deformation in the engagement hook.

Abstract: A connecting mechanism, configured to connect a plurality of plates, includes a main body, having a first surface and a second surface, and being of an elongate strip-shaped structure; a first groove, provided on the first surface; a plurality of locating columns, disposed on two sides of the first groove; and a second groove, provided at a position of the second surface corresponding to the first groove. When the connecting mechanism is connected to the plurality of plates, the plurality of locating columns are inserted into the locating holes of the plates which have the positions and shapes corresponding to the locating columns, the plates are connected to the two sides of the connecting mechanism and foldable towards a direction of the first groove via the connecting mechanism.

Abstract: A method for mounting fastening structure of automobile sunshade includes providing a fixing strip by stacking a first release layer with a torn portion, an adhesion layer, and a second release layer in turn; tearing off the torn portion to form a reserved opening exposing adhesion layer; providing a positioning unit, adhering the positioning unit to adhesion layer in the reserved opening temporarily and adjusting relative position between the automobile sunshade and the positioning unit; detaching the positioning unit, and exposing a sticking layer the adhesion layer after removing the second release layer to adhere to internal window frame; spreading a crosslinking agent to the adhesion layer in the reserved opening; tearing off the first release layer and adhesion layer; adhering the positioning unit to crosslinking agent on internal window frame.

Abstract: A wall anchor assembly with a sleeve and an anchor elastically coupled to the sleeve with an elastic member. Wherein, the elastic member defines a sleeve coupling portion that is substantially circular and couples the elastic member to the sleeve.

Abstract: Fasteners and related systems according to the invention include a collet body having a first part of a two part anti-rotation arrangement and a cylinder body having a second part of the two part anti-rotation arrangement wherein the collet body and the cylinder body are mateably axially translatable with respect to each other, and have the same or similar outer diameter in some embodiments or not in others. A threaded member rotationally engages the collet body and compressively contacts the cylinder body during operation of the fastener to creating a clamping effect. Rotational interference between the first and second parts of the anti-rotation arrangement preferably occurs at sectional face portions of at least the collet body. Resistance to induced rotation of the cylinder body relative to a work piece rotation of the threaded member is preferably provided by a tool engaging a tool interface present on the cylinder body.

Abstract: A connection fastener in which a plurality of fasteners for a driving tool are connected includes a connection band which detachably connects sleeves holding the fasteners one by one. A gap is formed between the sleeve and the fastener so as to face a toe side of the fastener.

Abstract: A plastic component having a core that has a thermoset matrix and an add-on part anchored to the core. At least the securing region of the add-on part can be formed from a thermoplastic and is secured by the securing region to the core of the plastic component, the securing region being attached to the core or inserted or pressed into the core, bonding, in a fusible state produced by the application of energy, in particular by ultrasonic vibrations, with the core and being anchored thereto or therein after solidification, in particular, as a connection anchor.

Abstract: A faceted lobular threaded component and methods for making and/or installing the same. A faceted lobular threaded component may include a head, and a shank extending along a longitudinal axis away from the head. The component may also include an external faceted lobular thread in the shank extending around the longitudinal axis. The external faceted lobular thread may include at least four facets per thread revolution, and at least four lobes per thread revolution circumferentially interspersed between the at least four facets and established by the at least four facets.

Abstract: A first and second electric members respectively having electrical connection portions are electrically connected in a state that mutual positions are regulated by guide pins, and fastening screws which are inserted through fastening screw insertion holes of the second electric member are screwed into screw holes for fastening of the first electric member, and thereby the first and second electric members are fastened. At least one of the screw holes for fastening has large-diameter portions into which the guide pin is detachably inserted, and small-diameter portions equipped with female screw portions. The female screw portions are not arranged in the large-diameter portions, and inner diameters of the large-diameter portions are larger than root diameters of the female screw portions, and outer circumferential surfaces of the fastening screws which are screwed with the female screw portions and inner circumferential surfaces of the large-diameter portions are not in contact with each other.

Abstract: The present apparatus provides an assembly that can be inserted into an open ended bore along the central axis of a fastener. The assembly can be used to continuously monitoring clamp load (tensile force) status throughout the life of a fastener and is attached at positions that help to reduce or eliminate problems that occur in existing load indicating fasteners that are associated with yielding, unknown force distribution, or stress versus elongation relationships occurring in non-uniform sections of a fastener. The apparatus has a design which makes it simple and inexpensive to manufacture and install.

Abstract: The utility model discloses a wheel nut, including a nut body which the outside surface comprises of multiple identical arc surfaces. The arc surface is protruding outward, and the radius of the arc surface is larger than the circumscribed radius of the outside surface of the nut body. The utility model designs the existing square surface of the outer hexagon feature of the wheel nut as an arc surface, which the contact area between the wheel nut and the sleeve and the loading area of the wheel nut can be increased, and then the deformation and looseness of the wheel nut can be avoided effectively, and therefore the service life of the wheel nut can be improved.

Abstract: A buoyant fastener structure includes a body portion and a fastening element. The body portion has a rotation-preventing portion and a position-limiting portion. The fastening element has a position-corresponding rotation-preventing portion, a position-corresponding position-limiting portion and a fastening portion. The rotation-preventing portion and the position-corresponding rotation-preventing portion prevent each other from rotating. A rotation-preventing buoyancy level exists between the rotation-preventing portion and the position-corresponding rotation-preventing portion. The position-limiting portion corresponds in position to and limits the position of the position-corresponding position-limiting portion. Therefore, the body portion is coupled to a first object, whereas the fastening portion is coupled to or removed from a second object, so as for the first and second objects to be coupled together and separated, repeatedly and quickly.

Abstract: The present disclosure relates to a self-locking threaded fastening assembly that comprises malleable thread tightening pins within the threads of an externally-threaded male component or an internally-threaded female component, and uses thereof. In certain embodiments, the self-locking threaded fastening assembly is used in connection with a rotary paint atomizer system, for example to ensure secure connection between a bell cup and the drive shaft of a turbine apparatus.

Abstract: This invention provides a combination clip and hook (clip) for use generally in suspending articles having shoulder or hand straps, or carrying other accessories, such as keys, which is rotatably movable about a rotary joint between a first position in which two opposing, rotatably joined portions of the overall clip structure are oriented together to form a continuous, enclosed shape that can be secured around another strap or loop on an item or piece of clothing, and a second position in which the two portions of the structure are rotated out of the enclosed shape, and into, for example, a substantially S-shaped hook in which one portion of the structure supports the strap of the item and the other portion can be applied to a clothing hook, chair back, table surface, door top, or other supporting member.

Abstract: A pivot fitting for moveable furniture parts on pieces of furniture has a first lever and a second lever mounted so as to pivot relative to each other about a common pivot axis from a basic position through a predetermined angle in an adjusting direction and a resetting direction, a latching mechanism, with which the two levers can be latched at different angular positions within the predetermined angle relative to each other counter to a force acting in the resetting direction, the levers being pivotable in the resetting direction when the latching mechanism is deactivated. A force-transmission shaft of the adjusting mechanism is coupled to the second level in a rotationally fixed manner. The latching mechanism can be deactivated by pivoting the second lever relative to the first lever in the adjusting direction when an end position has been reached.

Abstract: A self-centering bearing assembly is provided. The bearing assembly includes a magnetic bearing device configured to support a rotating shaft and a magnetic bearing support housing. The magnetic bearing housing has a disc-like shape and multiple tabs extending from an outer diameter portion in an axial direction. The bearing assembly further includes an auxiliary bearing device configured to support the rotating shaft during an auxiliary bearing condition, and an auxiliary bearing support housing. The auxiliary bearing support housing has a disc-like shape with a first diameter portion and a second diameter portion. The first diameter portion has a larger diameter than the second diameter portion. The tabs are configured to couple to the second diameter portion such that the auxiliary bearing support housing is concentric to the magnetic bearing support housing.

Abstract: The present disclosure provides a power supply system for a magnetic bearing and a control method therefor. The system includes a rectifying and filtering circuit configured to rectify and filter an alternating current to obtain a first direct current with a first DC bus voltage, the first direct current being configured to supply power to an electric motor controller of an electric motor to which the magnetic bearing belongs; a power obtaining circuit configured to obtain a second direct current with a second DC bus voltage from the first direct current, the second DC bus voltage being within an input voltage range allowed by the DC-DC power supply; a DC-DC power supply configured to convert the second direct current to a third direct current with a third DC bus voltage, the third direct current being configured to supply power to a bearing controller of the magnetic bearing.

Abstract: The invention relates to an anti-friction lacquer having a polymer as a resin matrix and functional fillers, the functional fillers containing mixed-phase oxides and optionally further functional fillers. The invention further relates to a sliding element having a metallic substrate layer and a coating which is applied thereon and made of at least such an anti-friction lacquer and to a method for the production thereof.

Abstract: The present disclosure relates to a low friction bearing liner for a solenoid that may include a core layer, a first outer layer overlying a first surface of the core layer, a second outer layer overlying the first outer layer, a first inner layer overlying a second surface of the core layer that is opposite of the first surface of the core layer, and a second inner layer overlying the first inner layer. The first outer layer and the first inner layer may include a fluoropolymer material and may have a melt flow rate of at least about 2 g/10 min at 372° C. The second outer layer and the second inner layer may include a fluoropolymer material distinct from the fluoropolymer material of the first outer layer and may have a surface coefficient of friction of not greater than about 0.2.

Abstract: An outer ring for a deep groove ball bearing assembly is disclosed. The outer ring includes a radially inner surface defining a raceway, and a radially outer surface defining a single groove extending between axial ends of the outer ring. The single groove contacts at least one axial end face of the outer ring.