Abstract: A turbo machine of the present disclosure includes a rotation shaft, a first bearing, a casing, an impeller, a first space, a second space, a storage tank, a first outlet passage, a supply passage, a pump, a main passage, and a sub-passage. The second space is in communication with a space formed between a bearing surface of the first bearing and an outer surface of the rotation shaft. The main passage is in communication with the second space and extends in the rotation shaft from an end of the rotation shaft in an axial direction of the rotation shaft. The sub-passage is formed in the rotation shaft and allows communication between the space between the bearing surface of the first bearing and the outer surface of the rotation shaft and the main passage.

Abstract: A compressor includes a cylindrical casing, a bundle which includes a tubular stationary member and a rotor accommodated into the tubular stationary member, the bundle being configured to be inserted into an inner portion of the casing, and a roller configured to roll on an inner circumferential surface of the casing while supporting the bundle when the bundle is inserted into the inner portion of the casing along an axial direction. An outer circumferential surface of the roller is a continuous convex curved surface defined such that a curvature radius of an end side curved surface portion along a rotating shaft of the roller is smaller than a curvature radius of a center curved surface portion.

Abstract: It is an object of the present invention to provide a sealing structure for a casing that can reduce the number of used gaskets and achieve further weight reduction, with the sealing function of the gaskets secured. The object is solved by including: a case 2 having an opened top; a cover 3 attached to the top of the case 2 to form a fluid flow path therein; a center plate 5 interposed between the case 2 and the cover 3 and partitions an inner space into the side of the case 2 and the side of the cover 3; and a gasket 4, which is disposed between the case 2 and the cover 3, and forming the center plate 5 so as to have a size that is within an inner peripheral side relative to a sealing line 41 of the gasket 4 and stacking this center plate on the gasket 4, and attaching the cover 3 to the top of the case 2 with the stacked gasket 4 and center plate 5 sandwiched there between to compress the gasket 4 with the mutual butting surfaces between the case 2 and the cover 3.

Abstract: A pump includes first and second impellers and a sealing element. The sealing element is arranged between the first and second impellers around the drive shaft. The sealing element has a first end transvers to the drive shaft and facing the first impeller and a second end transverse to the drive shaft facing the second impeller. The sealing element has a length along an axis smaller than the distance between the first and second impellers such that the sealing element is movable along the axis between the first and second impellers. The first and second ends of the sealing element have first and second areas transverse to the axis, the first area being larger than the second area such that the force exerted by the lower pressure generated by the first impeller is substantially equal to the force exerted by the higher pressure generated by the second impeller.

Abstract: An impeller includes a hub and a plurality of blades. Each blade extends out from the hub. The impeller has an original diameter defined by respective tips of the plurality of blades. Each blade includes a central axis, a leading edge, a trailing edge, an original profile, and a plurality of trim profiles. The original profile has an outside portion and a trailing portion. The outside portion has an angle within a range of about 40° to about 90° from the central axis and the trailing portion having an angle within a range of about 10° to about 50° from the central axis. A first selected trim profile of the plurality of trim profiles extends along a first line parallel to the outside portion and a second line parallel to the trailing portion.

Abstract: The present invention relates to an impeller assembly for centrifugal pumps, comprising a first disk-like element, operatively arranged towards a coaxial inlet, facing a second disk-like element with a smaller diameter, operatively arranged towards the outlet; this second disk-like element is rigidly connected to the first disk-like element through a set of angularly spaced blades, and is centrally provided with fastening means for fastening to a drive shaft. The distinctive feature of the present invention is that the blades comprise appendices, in flat sheet form, adjacent to the second disk-like element, which are essentially located in correspondence with areas subject to lesser axial thrust.

Abstract: In one aspect, a fan assembly is provided that includes a plurality of elongated metallic fan blades, a first metallic end ring, a second metallic end ring, and a metallic hub support connected to the fan blades intermediate the first and second end rings. The fan blades include straight inlet edges radially inward from first and second radially inner edges of the first and second metallic end rings so that inlet portions of the blades extend radially inward from the first and second metallic end rings. In another aspect, a fan assembly is provided that includes a hub support having a hub strip and a hub ring. The hub strip has an elongate configuration with an attachment portion connected to the hub ring at one end of the hub strip and another attachment portion connected to the hub ring at an opposite end of the hub strip.

Abstract: A turbofan engine includes a compressor rotor, a plurality of main blades circumferentially mounted on the compressor rotor, and a plurality of spinner blades circumferentially mounted on the compressor rotor. Each of the spinner blades is located forward of a leading edge of a corresponding one of the main blades. Each of the spinner blades is circumferentially offset to the corresponding one of the main blades.

Abstract: Blade made of composite material, with an integrated platform, for an aircraft turbine engine, including a root connected to an aerofoil and having a connection platform between the root and the aerofoil, the root having a generally elongate shape along an axis (A) of elongation, the aerofoil having a curved cross-sectional shape and including a pressure face and a suction face, the platform including a first portion extending on the pressure-face side of the aerofoil and including a first longitudinal free edge and a second opposite longitudinal edge for connecting to the rest of the blade, the platform including a second portion extending on the suction-face side of the aerofoil and comprising a third longitudinal free edge and an opposite fourth longitudinal edge for connecting to the rest of the blade, wherein the first longitudinal free edge is concave and the third longitudinal free edge is convex, and, for any plane (P, P?) perpendicular to the axis of elongation and intersecting the platform, the dist

Abstract: A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial flow passage that provides communication between the axial communication cavity of the downstream-side cavity group and the axial communication cavity of an upstream-side cavity group; another radial flow passage that provides communication between the axial communication cavity and the outer cavity of the upstream-side cavity group; and an outlet flow passage through which the gas inside the outer cavity of the upstream-side cavity group flows out into the gas compression flow passage.

Abstract: Embodiments of a core-protecting fan module are provided, as are embodiments of a turbofan engine containing such a fan module. In an embodiment, the core-protecting fan module contains a nose member, a fan rotor downstream of the nose member, a full span stator downstream of the fan rotor, and a splitter structure downstream of the fan rotor. The fan rotor includes a plurality of fan blades, which extends from a rotor hub and which is angularly spaced about a rotational axis. Certain fundamental angular relationships are observed between the angles formed by rotational axis, the nose member, the fan rotor, and a leading edge of the splitter structure to reduce contaminant ingestion by the core flow path and to promote moisture shedding to reduce susceptibility to icing within the fan module, while further avoiding or minimizing negative impacts to other structural and functional aspects of the turbofan engine.

Abstract: A compressor rotor, such as a fan, for a gas turbine engine is described which includes alternating at least first and second blade types. The leading edge of the second blade types includes a leading edge tip cutback extending to the blade tip thereof. The leading edge tip cutback of the second blade type defines a chord length at the blade tip of the second blade types that is less than that of the first blades types. The first and second blade types generate different shock patterns when the fan or compressor rotor operates in supersonic flow regimes.

Abstract: A hub for a fluid-flow control system of a vehicle can include an interface surface configured to be positioned adjacent to a corresponding interface surface of the fluid-flow control system. The interface surface can have at least two openings positioned to align with at least two corresponding openings in the corresponding interface surface of the fluid-flow control system and through which mounting components are receivable for coupling the hub to the fluid-flow control system. The hub can also include a raised surface protruding from the interface surface and having a diameter that is smaller than another diameter of the interface surface. The raised surface can have a profile with at least two keys configured to be received in corresponding keyholes of the corresponding interface surface of the fluid-flow control system.

Abstract: A folding and unfolding structure of blade of a ceiling fan includes a driving device, a rotary member, multiple connection arms, multiple fixed arms, multiple extension arms, multiple elastic members and multiple blades. The rotary member rotates synchronously with the driving device. One end of the connection arm is connected to the rotary member, and the other end of the connection arm is pivotably connected to one end of an extension arm by a first pivot. One end of the fixed arm is connected to a blade, and the other end of the fixed arm is pivotably connected to the other end of an extension arm by a second pivot. The elastic members are provided between the extension arms and the connection arms to restricting outward expansion of the extension arms, such that the extension arms are pivoted upward about the first pivots and move close to the rotary member.

Abstract: An axial impeller for a fan or blower includes a hub and a plurality of blades. The geometry of the blades is determined by a course of a blade leading angle and of a blade trailing angle of blade sections from a blade root at the hub to a blade tip opposite the blade root, i.e., according to the hub ratio. The blade leading angle is curved to the left according to the hub ratio and/or the blade trailing angle is curved to the right according to the hub ratio and the blade leading angle is 29°±3° near the blade root and 14°±3° near the blade tip and/or the blade trailing angle is 69°±3° near the blade root and 27°±3° near the blade tip.

Abstract: An abrasive tip comprises an additive layer having an additive; the additive is configured to prevent adhesion of an organic component from an abradable seal onto an abrasive blade tip.

Abstract: The present invention discloses a high flow low pressure suction device. The device is a non-contact suction device based on multiple stage turbulence based low pressure suction mechanism which comprises fan(s) or rotating impeller(s) for drawing air/fluid/slurries operates without any seal between the device and the sucked surface. The device compounds this turbulence based low pressure generation along with Bernoulli's principle to yield a high efficiency suction device. The device implements the above concept by making the air/fluid/slurries flow through two or three zones selected from the acceleration zone(s), turbulence zone(s) (high turbulence zone) and smooth zone(s) (minimum turbulence zone).

Abstract: A centrifugal fan includes: an impeller configured to suction or discharge air; a motor configured to rotate the impeller; a housing configured to accommodate the impeller and have a suction port through which air is suctioned by rotation of the impeller and a discharge port through which air is discharged by rotation of the impeller; and a cut-off portion formed on one side of the discharge port. A flow cross-sectional area of air flowing in the housing is gradually increased from the cut-off portion to the discharge port in an air flow direction, and a distance from a lower portion of the impeller to an inner peripheral surface of the housing in a rotational axis direction of the impeller is gradually increased in at least a portion from the cut-off portion to the discharge port in the air flow direction.

Abstract: A blower (100) may include a housing (110), a motor (120), a fan assembly (170) and an inlet assembly (160). The housing (110) may include a handle (140) operably coupled thereto. The fan assembly (170) may be operably coupled to the motor (120) to force air through a blower tube (150) responsive to operation of the motor (120). The blower tube (150) may define a tube axis (152). The inlet assembly (160) may provide a path for air to the fan assembly (170). The inlet assembly (160) may include an inlet aperture (162) formed at an end of the housing (110). The inlet assembly (160) may further include an inlet mesh (164) disposed within the housing (110) spaced apart from the inlet aperture (162).

Abstract: An inner cylinder inside an outer cylinder is disposed to be coaxial to an air pressure supply rod inside the inner cylinder. A first piston is disposed between the air pressure supply rod and the inner cylinder, a pneumatic chamber is disposed on a side of one surface (hydraulic surface) of the first piston in the inner cylinder, and a first hydraulic chamber is disposed on a side of the other surface. A second piston is disposed between the outer cylinder and the inner cylinder, and a second hydraulic chamber is disposed on a side of a surface of the second piston which is provided in the same direction as the hydraulic surface of the first piston in both of the cylinders. The inner cylinder is provided with a communication hole for transmitting a negative pressure along with movement of oil with which the first hydraulic chamber and the second hydraulic chamber are filled. In this configuration, it is possible to shorten an overall length of a fluid pressure cylinder.

Abstract: Provided are an apparatus and a method for controlling spool displacement of a construction machine, which are capable of improving regeneration efficiency of the construction machine, and improving a fuel efficiency characteristic of the construction machine by reducing pressure loss in the operating mode by adjusting the quantity of spool displacement in a regeneration mode when a current pressure of a main pump is less than a predetermined operating pressure, and determining whether the construction machine is in an operating mode or the regeneration mode in real time according to an operating angle of a joystick and the current pressure of the main pump when the current pressure of the main pump is greater than or equal to the predetermined operating pressure to variably change the quantity of spool displacement in the operating mode.

Abstract: A hydraulic pump assembly having a main pump, a charge pump and an auxiliary pump driven by a single shaft is provided. A pair of hydraulic porting members cooperates to feed and distribute hydraulic fluid between the three pump units, and a single inlet may be used to provide hydraulic fluid to the charge pump and the auxiliary pump.

Abstract: A double-rod ram (1), preferably for an extruder, comprising an outer cylinder (10), an inner cylinder (20) installed therein and arranged concentrically therewith, a double-acting work piston (41) provided in the inner cylinder to be displaceable and a bypass device (50) with at least one bypass valve (52), wherein the work piston (41) divides the inner cylinder (20) into two compartments (42) and can be loaded with a hydraulic fluid from both compartments (42), wherein the bypass device (50) is so arranged that in a bypass position of the bypass valve (52) a fluid connection between the two compartments (42) is formed by a direct connection, preferably at least one bypass line, and in a work position of the bypass valve (52) no such fluid connection is present.

Abstract: In a piston unit of a fluid pressure cylinder a plurality of magnets are disposed through holes provided in a ring body. The magnets are disposed in facing relation to detection sensors that are mounted on connecting rods, and are provided in the same quantity as the connecting rods. Further, a guide rod extending from a head cover to a rod cover is inserted through the interior of the ring body. When the piston unit is displaced along the cylinder tube, rotational displacement is restricted by the piston unit being displaced along the guide rod, whereby the magnets are retained to face toward the connecting rods at all times. Therefore, the position of the piston unit is detected by the detection sensors through the magnets.

Abstract: A controller for a valve assembly that is configured to meet requirements for use in hazardous areas. These configurations may regulate flow of instrument air to a pneumatic actuator to operate a valve. The controller may comprise enclosures, including a first enclosure and a second enclosure, each having a peripheral wall forming an interior space, and circuitry comprising a barrier circuit disposed in the interior space of one of the enclosures that power limits digital signals that exits that enclosure. In one example, the peripheral wall of enclosures are configured to allow instrument air into the interior space of the first enclosure but to prevent instrument air from the interior space of the second enclosure.

Abstract: A hydraulic system (1) is provided comprising a group of at least two valves (2a, 2b, 2c) connected to a bus (8), each of said valves (2a, 2b, 2c) comprising a primary memory (9a, 9b, 9c) for storing a set of parameters of the valve (2a, 2b, 2c). The service work of such a hydraulic system should be facilitated. To this end each valve (2a, 2b, 2c) comprises a secondary memory (10a, 10b, 10c) storing said set of parameters of a different valve (2b, 2c, 2a) of said group.

Abstract: A widener is provided, including: a base, a pushing assembly and a driving assembly. The base includes an inner space, a first passage and a second passage which are communicated with one another, and the first passage is transverse to the second passage. The pushing assembly includes a first pushing board, a second pushing board and a linkage member. The first pushing board is positioned at the base. The linkage member is movably inserted within the second passage. The second pushing board comovably connected with the linkage member. The driving assembly includes a tube body, a driving member and a driving block. The tube body defines a driving space, and the driving block is movably received in the driving space. An end of the tube body is connected with the first passage and the driving space is communicated with the inner space.

Abstract: A shell having a first shell portion and a second shell portion. A first and second claiming surface may be disposed at an end of the first and second shell portions respectively. The first arm and the first shell portion may include a first outer surface. The first arm may include a first arm non-extended position. The first arm may extend away from the first shell portion when in a first arm extended position. The second arm may extend away from the second shell portion when in a second arm extended position. The first shell portion may be disposed to the second shell portion such that the first clamping surface and the second claiming surface separate in response to an external force applied to the first arm in the first arm extended position and the second arm in the second arm extended position.

Abstract: A clip may have a clip main body that is configured to be coupled to a coupling rib of an attachment base formed in an attaching article and to be inserted into an attaching hole formed in an object member. The clip main body may include a head portion, a pair of engagement legs continuous with the head portion and elastically deformable inward and outward about the head portion, and a pair of retainer members continuous with the head portion and respectively configured to engage the coupling rib of the attachment base. The engagement legs respectively have first bent portions, second bent portions, and engagement portions positioned between the first and second bent portions and configured to engage an inner peripheral edge of the attaching hole. The engagement legs respectively have space-limiting portions that are respectively formed in inner surfaces thereof along the second bent portions thereof.

Abstract: A high retention force fastener for fixing at least two panels together is disclosed. The fastener includes two components. One component is a metal clip and the other is a plastic insert that can be substantially inserted into the metal clip. The metal clip includes a body having opposed panel engagement features extending therefrom, an insertion stop plate spaced apart from the engagement features and plastic insert locking tabs extending from the stop plate. The metal clip is preferably U-shaped and includes two sides joined by a connector. Each of the sides includes a pair of the panel engagement features. The plastic insert includes a head and a leg for insertion into the metal clip. The leg extends from the head. The plastic insert additionally includes metal tab engagement arms extending from and integrally formed with the head for engaging the plastic insert locking tabs of the metal clip.

Abstract: In one example, an article including a soft substrate defining at least one of a first outer perimeter of the substrate or an aperture extending through the soft substrate defining a second outer perimeter of the aperture; a hard coating on the outer surface of the soft substrate; and at least one reinforcement member extending through the soft substrate at a location adjacent to at least one of the first outer perimeter or the second outer perimeter, wherein the at least one reinforcement member increases resistance to compression of the soft substrate at the location of the at least one reinforcement member.

Abstract: A clamp for clamping an object having an aperture therethrough to a member is disclosed. The clamp passes through the aperture when clamping the object to the member. The clamp has a head portion defining a channel adapted for receiving an edge of the aperture; a body portion extending from the head portion; and a tail portion extending from the body portion. The tail portion has a member contacting surface shaped for wrapping around at least a portion of a perimeter of the member. A vehicle having a windshield clamped to a frame member using at least one such clamp is also disclosed.

Abstract: A laminated load ring for a balloon assembly includes a plurality of ring stacking units stacked one on top of the other. Each of the ring stacking units can include a main body having a central opening, a plurality of arms, and at least one weld line. The plurality of arms may each extend away from the main body around a circumference of the main body. The at least one weld line can be formed on the main body. The plurality of arms of the plurality of ring stacking units may be aligned with one another. The weld line of each of the plurality of ring stacking units may be offset from the weld line of a directly adjacent ring stacking unit in a direction extending around the circumference of the laminated load ring.

Abstract: A hold open rod assembly includes an outer tubular structure and an inner tubular structure positioned for telescoping movement relative to the outer tubular structure. A locking mechanism retains the hold open rod assembly in an extended state to support a panel of an aircraft in an open position at the selection of a user.

Abstract: A set including a panel and a slider, such as a drawer slider. The slider including a slider surface and the panel comprising a panel surface. The slider is configured to be assembled to the panel with the slider surface facing the panel surface. The panel surface is provided with an insertion groove and an undercut groove, which are of a longitudinal shape. A strip protrudes from the slider surface, and the strip is configured to be inserted into the insertion groove and the undercut groove by an angling motion.

Abstract: A toggle fixing for fixing an article to a thin-walled component, having a crosspiece for engaging behind the component, which crosspiece has an opening for receiving a screw. Connected to the crosspiece there is an elongated strip having a displaceable sleeve which has a screw hole for passage of the screw. The sleeve has an engagement element for threaded engagement of a screw in order that the latter does not unintentionally tilt the crosspiece during mounting. In order to provide quick insertion of a screw, the engagement element has a manipulating element such that the engagement element is movable radially outwards relative to the longitudinal axis, and the engagement element is manipulatable from a rear side of the sleeve emote from the crosspiece.

Abstract: An adaptor is used to couple a prime mover to an actuator. The adaptor includes a first portion that attaches to the prime mover and a second portion that attaches to the actuator. The outer surface of the first portion is defined by at least one flat portion connected by at least one arcuate portion. The second portion has a bore configured to accept the first portion, with an inner surface shaped to complement the outer surface of the first portion. A bore through the first portion accepts a drive shaft of the prime mover therethrough where the drive shaft is configured to engage the actuator.

Abstract: An apparatus includes a first pin half, a second pin half opposite the first pin half, and a center pull pin disposed between the first and second pin halves. The first and second pin halves each include a first end, a second end opposite the first end, a bottom portion proximate the second end, and a middle portion adjacent to the bottom portion. The bottom portion extends in a radial direction a first distance. The middle portion extends in the radial direction a second distance less than the first distance. The center pull pin is removable from between the first and second pin halves. The first and second pin halves are collapsible towards each other when the center pull pin is removed from between the first and second pin halves.

Abstract: A frangible fastener system configured to secure a second retained member to a first retained member until the frangible fastener system receives a breaking force is described. The frangible fastener system comprises a first fastener and a second fastener. The first fastener comprises a flange configured to cause retention of the first retained member toward a base member. The first fastener is configured to engage the base member and to receive the second fastener along a first axis of the frangible faster system. The second fastener comprises a frangible portion configured to separate responsive to receiving the breaking force, and a head portion connected to the frangible portion. The head portion is configured to cause retention of the second retained member toward the first retained member until the frangible portion separates responsive to receiving the breaking force.

Abstract: The invention relates to a clip body (10) with a retainer (12) for a fastening device (14), wherein the clip body (10) can be fastened to a panel (18) provided with at least one fastening opening (16), wherein the clip body (10) has two limbs, of which one can be arranged on a first side of the panel (18) and the other can be arranged on a second side of the panel (18), and for this purpose is placed onto an edge of the panel (18), and the clip body (10) has at least one positioning element (20). According to the invention, the at least one positioning element (20) can be guided through the fastening opening (16) in the panel (18), and the clip body (10) can be positioned on the panel (18) by a stop of the at least one positioning element (20) on an edge (22) of the fastening opening (16). The invention also relates to a clip (30) and a fastening arrangement (50).

Abstract: A telescopic drive shaft in a protective tube of a handheld work apparatus has one end connected to a rotational drive and the other end thereof to a driven tool. The drive shaft includes a rigid shaft segment and a connecting section. The rigid shaft segment has a hollow shaft end portion and an engagement length (E) of the connecting section engages therein. The engagement length (E) and the length of the hollow shaft end portion mutually overlap to form a joining section. The hollow shaft end portion is deformed for connecting the connecting section to the rigid shaft segment. The material of the hollow shaft end portion is compressed over its entire periphery and deformed so that the material of the hollow shaft end portion is radially displaced and is pressed in a rotative manner onto the engagement length (E) to produce a balanced, loadable connection.

Abstract: The invention relates to an exhaust-gas-driven turbocharger having a hydrodynamic plain bearing having a rotor and a stator, the rotor being rotatable with respect to the stator, the rotor bearing surface being located opposite a counter-surface of the stator in order to generate hydrodynamic pressure in the region of a converging gap. In such a hydrodynamic plain bearing, the application properties can be improved by the fact that the rotor bearing surface and/or the counter-surface constitutes in a section view, in the context of a section along and through the rotation axis, a continuous bearing contour that is constituted from convex or concave curvatures and/or from at least two contour segments that are embodied as straight lines and/or curvatures. The invention also relates to a hydrodynamic plain bearing or bearing arrangement having such a plain bearing.

Abstract: A roller bearing for at least one set of roller bodies, which are disposed in an annular manner, the roller bearing having at least one track element with a track, on which the roller bodies are provided for rolling. The track comprises a track base having a circular circumferential line. The track element comprises, on each axial side of the track base, a shoulder or a rim for the roller bodies, each shoulder or rim having a circular circumferential line. The track element is formed such that, as viewed perpendicular to the planes defined by the circumferential lines, all center points of the three circumferential lines are different from each other.

Abstract: The present disclosure relates to a rotation unit and method for adjusting bearing clearance. The rotation unit includes a shaft that is rotated around its longitudinal axis by a rotating motor. The shaft is supported to a body of the rotation unit by a bearing assembly. The rotation unit further includes an adjusting arrangement for generating pre-load for the bearing assembly and adjusting bearing clearance. The adjusting arrangement includes an axial adjusting space and at least one pair of half-elements arranged between axial adjusting surfaces limiting the adjusting space.

Abstract: The present invention provides a method for producing a durable semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at a start time of an operation of a swash plate compressor, can be restrained from deteriorating in its lubricating property due to generated frictional heat, and can be restrained from deteriorating in its strength at a production time and an injection molding die. A semispherical shoe (4), for a swash plate compressor, to be produced by the production method has a base material (5), consisting of a hard material, which has a hollow part along a central axis thereof and a resin layer, consisting of a resin composition, which is formed on a surface of a planar part, disposed on a periphery of the base member, which is to be subjected to sliding contact with the swash plate and on a surface of a spherical part, disposed on the periphery thereof, which is to be subjected to sliding contact with a piston.

Abstract: A thrust roller bearing includes rollers, a cage that holds the rollers in a manner that allows the rollers to roll, and a washer including a raceway surface on which the rollers roll. The washer includes a raceway portion that has the raceway surface and is disposed on a first axial side of the cage, and hook portions that extend toward a second axial side. Each of the hook portions includes a first projecting portion that extends toward the second axial side from the raceway portion, a second projecting portion that extends radially toward the rollers and toward the second axial side from an end portion of the first projecting portion on the second axial side, and a third projecting portion that further projects radially toward the rollers from an end portion of the second projecting portion on a side opposite to the first projecting portion.

Abstract: Rolling bearings and methods of making the same are disclosed. The rolling bearing may include an inner ring, an outer ring and rolling elements arranged radially or axially between the inner ring and the outer ring. A coating may be formed at least partially on the inner ring, and/or on the outer ring, and/or on the rolling elements, wherein the coating is formed predominantly from tungsten and is configured to prevent white etching cracks. The rolling bearing may be used in a wind turbine.

Abstract: A sealed bearing assembly includes an inner race, a bearing element, and an outer race extending radially in axial alignment between a rotatable member having an axis of rotation and a stationary support structure. The sealed bearing assembly also includes a first inlet header coupled to a first axial end of the outer race. The first inlet header includes at least one oil inlet port, at least one oil nozzle, and a first sealing member extending between the first inlet header and a first surface of the inner race.

Abstract: When inner diameter side opening portions are projected on an outer circumferential surface of a retainer along extension lines of central lines of radial holes, at least parts of the inner diameter side opening portions of a plurality of radial holes of an outer ring are positioned within an area of two circles formed by connecting each of axial end portions of adjacent pockets of the retainer in an axial direction. When a central line of any one radial hole coincides with a circumferential phase of a center of a ball, any other radial hole is formed such that the projected inner diameter side opening portion is separated from the ball and an inner circumferential surface of the pocket when viewed from the radial direction of the ball bearing, and a central line of the other radial hole overlaps with the pocket when viewed from the axial direction.

Abstract: A linear motor conveyor system and method for lubrication including: a linear motor track comprising a first guide rail and a second guide rail, wherein the first guide rail has a shaped profile and the second guide rail has a flat profile; at least one moving element provided to the linear motor track comprising a first bearing having a shaped profile with a first bearing surface of polymer configured to engage the first guide rail and a second bearing having a flat profile with a second bearing surface configured to engage the second guide rail; and a lubrication system provided to one of the track and the at least one moving element and configured to provide a lubricant between the first guide rail and the first bearing surface.