Abstract: Embodiments of the invention provide a pump having a motor, a housing, a seal plate coupled to the housing and including a seal plate hub with mounting supports, an impeller arranged within the housing, a coupling assembly coupling a motor shaft and a pump shaft, and a seal and jacking assembly including a mechanical seal and a seal gland. The seal gland is removably coupled to the mounting supports and includes threaded jacking apertures extending axially through the seal gland, each configured to receive a jacking element. When the seal gland is decoupled from the mounting supports, the seal gland is moveable axially between a first position whereat the seal gland engages the mechanical seal and a second position whereat the seal gland engages a retaining ring coupled to the pump shaft in response to rotation of the jacking elements received within the pair of threaded jacking apertures.

Abstract: A multi-stage centrifugal pump includes pump stages (6), with impellers (13) arranged on a rotatable shaft (12) arranged within a pump casing. The shaft passes through a chamber (8), provided within the pump casing, and is sealingly led out of the pump casing for connection to a drive motor (11). A shaft ring (22) is fixedly and sealingly connected to the shaft (12) and has one side, at least in sections, that is subjected to the pressure of the pump and is arranged in or on the shaft. An axial seal (19) is provided with a rotating part formed by the shaft ring (22) or a seal part (23) arranged thereon and with a non-rotating part formed by a counter-ring (24) or a seal part which is arranged thereon. The counter-ring (24) is radially sealed with respect to the chamber (18) and is axially movably guided within the chamber.

Abstract: In accordance with some embodiments of the present disclosure, a thrust washer and a diffuser for use in a downhole electrical submersible pump are disclosed. The pump may include a shaft and a motor communicatively coupled to the shaft. The motor may be operable to rotate the shaft. The pump may further include an impeller coupled to the shaft. The impeller may contain a balance ring, a balance hole, and a hub. The pump may further include a diffuser disposed adjacent to the impeller. The pump may further include a thrust washer coupled to the impeller. The thrust washer may be located between the balance ring and the hub without blocking the balance hole to allow fluid flow through the impeller and the diffuser. The pump may further include a discharge operable to direct fluid flow out of the multi-stage electrical submersible pump.

Abstract: Articles of manufacture, preferably pump component parts, and a method for making the articles, include providing a plurality of layers of reinforcing fibers in a stack of consecutive layers in a matrix of synthetic polymeric material. The reinforcing fibers of different layers are of corresponding different materials, and the layers are arranged such that the material of the reinforcing fibers in each layer is different from the material of the reinforcing fibers in the next consecutive layer. The layers are stitched together with further reinforcing fibers extending within the stack essentially perpendicular to the layers and interspersed throughout the stack. The stack is compressed and cured to establish a block having a plurality of layers of reinforcing fibers and further reinforcing fibers in a matrix of synthetic polymeric material. The block is machined to establish a prescribed configuration of a desired article.

Abstract: An impeller according to the present disclosure includes a hub and wings. Each of the wings has a leading edge portion and a body portion. The leading edge portion is positioned on an upper surface side of the hub. The body portion is positioned on a lower surface side of the hub. A tip of the leading edge portion and a tip of the body portion extend from the upper surface side of the hub toward the lower surface side of the hub on a side opposite to a side where the wing is in contact with the hub. In a plan view of the wing seen from a radial direction perpendicular to an axis of the impeller, a profile of the tip of the leading edge portion has a linear shape and a profile of the tip of the body portion has a curved shape.

Abstract: A double inlet blower wheel has a plurality of blades having at least one notch. A center disk has an outer diameter and a plurality of slots disposed about a circumference. The slots extend inwardly from the outer diameter of the center disk. The center disk has roll-over tabs for each of the slots, wherein each of the blades engages a respective one of the slots. The plurality of blades are fully encapsulated about a periphery, where an edge of the blades defines a blower wheel outer diameter, where the outer diameter of the center disk is less than the blower wheel outer diameter. A support disk is coupled to a central region of the center disk, providing a greater thickness of the center disk and adds rigidity to the center disk. A pair of inlet rings also respectively secures opposing ends of each of said plurality of blades.

Abstract: Embodiments of an impeller shroud support for disposition around an impeller are provided, as are embodiments of gas turbine engine including impeller shroud supports. In one embodiment, the impeller shroud support includes a shroud body, a support arm joined to and extending around the shroud body, and a plurality of Mid-Impeller Bleed (MIB) flow passages. Each MIB flow passage includes, in turn, an inlet formed in the shroud body and configured to receive bleed air extracted from the impeller, a throat portion, an outlet formed in the support arm and through which the bleed air is discharged, and a curved intermediate section between the inlet and the outlet. During usage of the impeller shroud support, the curved intermediate section turns the bleed air flowing through the MIB passage in a radially outward direction prior to discharge from the outlet of the MIB flow passage.

Abstract: A compressor housing includes a compressor inlet duct and an inlet for a compressor wheel. The compressor inlet duct has a longitudinal axis and connects an air intake duct with the compressor wheel inlet. The compressor housing includes at least one appendix positioned between an upstream portion of the compressor inlet duct and the compressor wheel inlet. The appendix includes a pipe closed in a distal part thereof with respect to the longitudinal axis of the compressor inlet duct.

Abstract: Methods and systems are provided for a swirl generating device upstream of a compressor. In one example, a method for actuating the swirl generating device, which is located in a ring-shaped duct, adjust a swirl of charge air flowing through the ring-shaped duct to the compressor in response to engine operating conditions.

Abstract: An axial fan is provided which has a high degree of freedom of design of a condition of gas to be discharged. An axial fan 1 of the present disclosure comprises a discharge port; a rotation axis; an impeller 23; and a casing 30 including a side wall 31 part that encloses the impeller 23, wherein the side wall part 31 includes a plurality of inner face parts 37a1 in a circumferential direction on the discharge port 2 side, and an inner face part angle is an angle of the inner face part 37a1 with respect to the rotation axis, and the inner face part angle on an outwardly spreading side with respect to the rotation axis is a positive angle, and the inner face part angles are greater than 0°, and the two inner face parts adjacent to each other have different inner face part angles.

Abstract: In one aspect, the present disclosure is directed to a cooling circuit for a gas turbine engine. The cooling circuit includes a rotor blade having a connection portion and a rotor disc having a first axial side and a second axial side. The rotor disc defines a connection slot and a cooling passage extending between the first axial side and the second axial side. The connection slot receives the connection portion to couple the rotor blade to the rotor disc. Cooling air flows through the cooling passage.

Abstract: An impeller having a solidified ultraviolet-curing adhesive, a fan having the impeller, and an impeller weight-balancing method are provided to solve the problems of the conventional impeller weight-balancing method as the conventional method can only be used with the impeller having high production complexity and manufacturing cost and has a low operational efficiency and a low weight-balancing precision. In addition to the solidified ultraviolet-curing adhesive, the impeller further includes a shaft, a hub and an air-driving unit. The hub is coupled with the shaft. The air-driving unit is coupled with the hub. The solidified ultraviolet-curing adhesive is coupled with a surface of the air-driving unit.

Abstract: A rotor in BLISK or BLING design of an aircraft engine, comprising: a rotor disc that, at its radially outer area, forms an annulus which delimits the flow channel of the aircraft engine radially inside; and a plurality of rotor blades that project from the annulus; wherein the rotor disc forms a first structure and a second structure which are arranged at a distance from each other in the radial direction, wherein the first structure and the second structure respectively have an arm that protrudes upstream and/or downstream in the axial direction. An arm of the first structure arranged upstream and an arm of the second structure arranged upstream and/or an arm of the first structure arranged downstream and an arm of the second structure arranged downstream are connected to each other by means of a damping element that comprises an elastomer or is formed from an elastomer.

Abstract: A fan shroud assembly (10) includes a fan shroud (14) having a boss (54) formed thereon, and a shield (22) having an aperture (58) and at least one slot (62) communicating with the aperture to allow deflection of the shield in a region adjacent the aperture. The aperture is smaller than the boss such that the aperture receives the boss with an interference fit, causing deflection of the shield, to secure the shield on the fan shroud.

Abstract: A compressor system includes a compressor (50) configured to compress a gas, a compressed gas circulation unit (52) in which a gas compressed by the compressor (50) circulates, a hydrate anti freezing agent supply unit (53) configured to supply a hydrate anti freezing agent for preventing hydration of the gas to the compressed gas circulation unit (52), a compressor hydrate anti freezing agent supply unit (54) configured to supply part of the hydrate anti freezing agent supplied from the hydrate anti freezing agent supply unit (53) to the compressor (50), and a pressure changing unit (59) configured to change a pressure of the hydrate anti freezing agent inside the compressor (50).

Abstract: A wet-gas centrifugal compressor is disclosed. The compressor comprises a compressor casing and at least one impeller arranged in the compressor casing for rotation around a rotation axis. A stationary diffuser is arranged in the compressor casing and extends around the impeller. The diffuser has a curved end portion with a radially inner curved wall and a radially outer curved wall. A plurality of dry-gas extraction holes is provided, ending at a plurality of respective inlet ports arranged around the rotation axis and on the inner curved wall of the curved end portion of the diffuser. Each dry-gas extraction hole extends from the respective inlet port towards the rotation axis and is inclined over a radial direction, such that each dry-gas extraction hole is oriented in a counter-flow direction with respect to a direction of the gas flow in the curved end portion of the diffuser.

Abstract: The invention relates to a master cylinder for an actuating device of a clutch or a brake of a motor vehicle, including a cylinder housing having a pressure cylinder section, as well as a piston mounted movable relative to the cylinder housing, wherein the piston is arranged inside the pressure cylinder section in an actuation state in order to control a fluid pressure in a fluidically sealed pressure chamber by a sealing device on the piston side, and is arranged in a pressureless state such that the pressure cylinder section is fluidically connected to a retention system, wherein a seal of the sealing device is configured, and attached to the piston, such that it rests on a seal protection area of a stop element at least in a parking position in the pressureless state; as well as a method for mounting such a master cylinder.

Abstract: A hydraulic system is provided for a working machine, that includes a hydraulic cylinder for raising and lowering an implement The hydraulic system includes a sensor for measuring a pressure in the hydraulic cylinder; and a control unit for controlling the movement of the hydraulic cylinder; wherein the control unit is configured to compare a pressure value measured by the sensor with a preset target pressure level range and to control the pressure in the hydraulic cylinder to be within the preset target pressure level range by adding or draining hydraulic fluid to/from a pressure side of the hydraulic cylinder for maintaining a substantially constant ground contact force between the implement and the ground.

Abstract: A hydraulic rotary manifold has a core manifold having a barrel and a rotatable spindle inserted in the barrel. The core manifold is common to a variety of different configurations involving removable spindle-mounted and barrel-mounted manifolds, which may be removably mounted on the core manifold and exchanged for other removable manifolds to provide different hydraulic fluid flow paths in the rotary manifold using the common core manifold. The rotary manifold permits retrofitting a secondary fluid flow path to use a secondary fluid in conjunction with a work tool mounted on the rotary manifold. The rotary manifold permits mounting a rotary position encoder on a barrel-side of the rotary manifold permitting the use of the common core manifold when a rotary position encoder is desired.

Abstract: A hydraulic drive unit for a shaping machine comprising a pump driven by a motor, a closed-loop or open-loop control unit for closed-loop and/or open-loop control of the drive unit to a reference operating point of the drive unit, and a memory connected to the closed-loop or open-loop control unit, wherein a relationship between a parameter characteristic of a sound directly or indirectly caused by the drive unit and a data set representing various operating points of the drive unit is stored in the memory and the closed-loop or open-loop control unit is adapted to select the reference operating point on the basis of the relationship.

Abstract: A method of health monitoring of a hydraulic actuator includes sensing a first hydraulic fluid pressure at a first chamber of a hydraulic cylinder, the first chamber defined by a piston disposed in the cylinder and a first cylinder wall. The method further includes sensing a second hydraulic fluid pressure at a second chamber of the hydraulic cylinder, the second chamber defined by the piston and a second cylinder wall opposite the first cylinder wall. The pressures are summed to derive a pressure sum leakage estimate. An actual piston position in the hydraulic cylinder is determined and compared to an intended piston position to determine a positional error of the piston. A command-response error leakage estimate is derived from the positional error. The pressure sum leakage estimate and the command-response error leakage estimate are fused to determine an internal hydraulic fluid leakage in the hydraulic cylinder.

Abstract: Apparatuses include first and second monolithic members that are coupled together, that are configured to move relative to each other, and that are configured so that they cannot be decoupled from each other without destruction of one or both of the two monolithic members. Apparatuses further include a third monolithic member configured to be selectively coupled to at least one of the first monolithic member and the second monolithic member. Methods of forming and using such apparatuses also are disclosed. Some monolithic members are formed utilizing an additive manufacturing process so that they are restricted from being decoupled from each other. Some apparatuses define clamps. Some clamps are used to precisely align laser projection alignment targets for use with laser projection alignment systems.

Abstract: A method and apparatus for forming a seal over a hole in a structure. The apparatus comprises a washer, a sleeve, and a fastener. The washer has a first channel. The sleeve has a second channel and an expandable section. The sleeve is positioned inside the first channel in the washer. The fastener has an elongate portion positioned inside the second channel of the sleeve to cause at least a portion of the expandable section of the sleeve to form a first interference fit with the washer.

Abstract: A tactical-gear interconnection system apparatus and method allowing connection of a variety of tactical gear such as gun stocks, camera supports, sights, rangefinders, grips, and clamps, in field-interchangeable configurations responsive to changes in field conditions, by providing same-sized threaded plug units on all gear and same-sized interchangeable unions for removable connection of various pieces of gear.

Abstract: A shelving apparatus includes a supporting frame and a plurality of posts for coupling with the supporting frame. Each post includes an upper post member, a lower post member and a post joint, wherein each of the upper and lower post members has a first post wall and a second post wall extended from the first wall at an angle. The post joint includes an engaging tongue extended into interiors of an end portion of the upper post member and an end portion of the lower post member, such that the upper and lower post members are interlocked and coupled with each other end-to-end.

Abstract: The invention relates to an expansible fixing plug (1) which consists of at least two different plastics materials, having a main body (2) made of the first plastics material, which is at least partly encased by a casing (3) made of the second plastics material. The main body (2) has an expansion region (5), which extends along a longitudinal axis (L) and has at least two expansion tongues (11, 12) which are separated from one another by a first slot (13), and a sleeve (6) arranged at the front of the expansible fixing plug (1) in the direction of introduction (E). The sleeve (6) is connected to the expansion region (5) and is at least partly encased by a casing body (18) formed by the casing (3).

Abstract: A sleeve interference fastener including a conformable sleeve, wherein the conformable sleeve is comprised of at least one first material having a hardness of X, and a pin member, wherein the pin member is comprised of at least one second material having a hardness of Y, wherein X is sufficiently less than Y so that, in an installed position of an interference fit, at least a portion of the at least one first material of the conformable sleeve conforms to a contour of an inner surface of a hole of a composite structure so as to create a continuous electrical contact at an interface between the inner surface of the hole of the composite structure and the conformable sleeve.

Abstract: A ball lock pin is provided to avoids the problem of falling balls via machining the retention ring (previously deformed ring) from the inside of the pin body, thus creating a stable and extremely well controlled surface where the steel balls can rest. The pin body does not need to be deformed, thus eliminates any potential corrosion to build up in the area.

Abstract: Thread locks that can be used to secure a threaded bolt within an aperture are disclosed. Devices including a threaded aperture, such as a T-bolt, are also disclosed, which can optionally utilize thread locks disclosed herein. Embodiments disclosed herein are particularly useful in farm animal containment structures, however, the scope of the disclosure is not limited to such applications.

Abstract: A Bowden cable, including a cable transmitting tensile force from an operator side to an active side and a sheath guiding the cable, and a retention device arranged at an end side of the sheath limiting movement of the cable with respect to the sheath in the direction of the operator side. The retention device operative to allow movement of the cable with respect to the sheath when a tensile force acting between the cable and sheath exceeds a threshold value.

Abstract: A retention clip having a body with a first end and a second end opposite the first end; a mounting hole defined in the first end of the body; and a U-shaped retaining slot formed by a leg arranged at the second end of the body and a portion of the body between the mounting hole and the U-shaped slot. The leg arranged at the second end of the body extends substantially perpendicular to a longitudinal axis of the body.

Abstract: To provide a technology with which cleavage fracture to a sliding surface can be prevented. A sliding member and a sliding bearing include a base layer and a cover layer of a cover material having a sliding surface for a counterpart material, the cover layer being formed on the base layer. The cover layer has a crystalline structure of the cover material including crystalline grains having a grain diameter of 3 ?m or more and 7 ?m or less.

Abstract: A pin for use in a dynamic pin joint is provided that comprises a core member that defines a longitudinal axis and an outer diameter and a self-lubricating material overlay that is disposed about the outer diameter of the core member along at least a portion of the longitudinal axis of the core member.

Abstract: A housing and a ball joint including the housing are provided. The housing includes a holding part which holds an end portion of a dust cover and which can be formed at a low cost by deforming only a deformed part reliably without requiring additional process. A receiving part is provided on an upper end side of a housing body. A deformed part is provided at an upper end portion of the housing body to be adjacent to the receiving part. A sum of an angle of the outer peripheral surface of the receiving part relative to an axis-perpendicular direction of the housing body and an angle of the outer peripheral surface of the deformed part relative to the axis-perpendicular direction is set to be less than 180°.

Abstract: An attachment for an extension poles, particularly for painter applications is disclosed. The device is designed to articulate and rotate about two or more axes to allow a painter to work at different angles. The device further provides novel structure allowing it to easily transition between engaged and unengaged positions. Ends of the device are configured to easily attach to an extension pole, paint brush, or roller brush, as applicable. In a preferred embodiment, the device is further telescoping, providing additional functionality.

Abstract: The invention relates to plain thrust bearings, wherein one working surface of which is made of siliconized graphite (or other antifriction material with similar characteristics) and can be used in assemblies of electrical machines and hydraulic machines having thrust bearings of a large size (with a diameter up to 900 mm), preferably electric motors driving a main circulation pump assembly (MCPA) of reactor assemblies, for example, in nuclear power plants. The plain thrust bearing comprises interleaving bearing bands and slots on the side facing to a set of sector. The bearing disk is provided with mounting surfaces, wherein external and internal rings securing the sectors made of antifriction material through elastic elements are mounted on the mounting surfaces. The sectors are fixed to deter them from rotation relative the bearing ring by intermediate bars arranged between the sectors, wherein the bars are fixed by inserting their pins into the openings in the bearing disk.

Abstract: A rotary machine is provided with: a flange section protruding in the radial direction of a rotating shaft which rotates about an axis and rotating together with the rotating shaft; a stationary bush disposed at a distance in the direction of the axis from the flange section, surrounding the outer peripheral surface of the rotating shaft, and provided in a housing supporting the rotating shaft so as to be immovable in the direction of the axis relative to the rotating shaft; and a rotation bush which is disposed between the flange section and the stationary bush so as to be sandwiched there between in the direction of the axis, covers the outer peripheral surface of the rotating shaft, and is rotatable relative to the rotating shaft and the housing while floating in fluid. The rotation bush has, on the surface thereof which faces the direction of the axis, a land surface and a tapered surface which is continuous with the land surface.

Abstract: The present invention provides a rolling bearing that reduces the weight of a holder, that meanwhile maintains the rigidity of the holder itself, and that makes it possible to minimize increases in rotational torque even when rotating at an extremely high speed. The rolling bearing comprises an inner ring, an outer ring, a plurality of rolling bodies, and a holder for holding the rolling bodies between the inner ring and the outer ring.

Abstract: A rolling bearing including an outer ring, an inner ring and two annular, cage-guided rolling body rows, the two rolling body rows being axially pre-stressed by at least one spring element which is disposed therebetween, the two rolling body rows each being pre-stressed against a rim at the end of the outer ring, whilst the inner ring is axially movable against the restoring force of the spring element.

Abstract: A yoke roller assembly includes an inner ring disposed in an outer ring. The yoke roller assembly includes first, second and third rows of rollers positioned between the inner ring and the outer ring. The outer ring has a first width, a first outside diameter and a radially outwardly extending lobe circumferentially extending therearound and formed integrally therewith. The lobe has opposing axial end faces extending a second width, and has a second outside diameter. The second row of rollers are positioned axially inward of the axial end faces of the lobe. The first and third row of rollers each have an axial end positioned axially inward of the axial end faces of the lobe.

Abstract: An axial roller bearing assembly is provided. The axial roller bearing assembly includes a first axial washer including a contact surface, a bearing element engaging the first axial washer, and a spring plate connected to the first axial washer and including a first surface and a second surface. The second surface is in contact with at least a portion of the contact surface. The spring plate is configured to deflect under a load applied to the first surface such that an increasingly larger portion of the second surface abuts the contact surface.

Abstract: A thrust bearing includes: a retainer that is provided with a plurality of pockets; a plurality of rollers that are arranged so as to freely rotate inside the plurality of pockets; and at least one first race that has an annular-shaped first race section in which the plurality of rollers move. The first race is provided with a hook curl section that is formed by bending the first race section from an outer-diameter-side periphery thereof toward the inner-diameter side obliquely in the radial direction, and an outer peripheral surface of the retainer has a conical surface that is formed so as to be substantially parallel to an inner peripheral surface of the hook curl section. The inner peripheral surface of the hook curl section holds the retainer without separating therefrom by contacting the outer peripheral surface of the retainer in a sliding manner.

Abstract: A bearing bush 1 for use in a toggle has a cylindrical metallic base material 2 and a solid lubricant 3 embedded in the metallic base material 2, and the metallic base material 2 has dead end grooves 5 formed in a cylindrical inner peripheral surface 4, an annular groove 6 formed in the cylindrical inner peripheral surface 4, and circular holes 7a and 7b as well as 7c and 7d formed in each of a pair of semicylindrical inner peripheral surfaces 4a and 4b adjacent to each other in an axial direction X and two pairs of semicylindrical inner peripheral surfaces 4c and 4d sandwiching the pair of semicylindrical inner peripheral surfaces 4a and 4b in a circumferential direction R and adjacent to each other in the axial direction X in each pair.

Abstract: A sliding member (1) is formed of a sintered compact. The sintered compact includes: a base layer (3), which mainly contains an Fe-based structure and further contains 1.0 wt % to 5.0 wt % of Cu, a metal having a melting point lower than a melting point of Cu, and C; and a sliding layer (2), which is sintered together with the base layer (3) in a state of being held in contact with the base layer (3) and has a sliding surface (A). The sliding layer (2) mainly contains an Fe-based structure containing at least one kind of alloy element selected from Ni, Mo, Mn, and Cr and further contains Cu and C, and the content of Cu in the sliding layer (2) is larger than the content of Cu in the base layer.

Abstract: An axial roller bearing includes a first bearing including a first cage and a first plurality of rollers and a second bearing including a second cage and a second plurality of rollers. The axial roller bearing further includes a first washer positioned on a side of the first bearing, a second washer positioned on a side of the second washer which is opposite from the side of the first bearing on which the first washer is positioned, and a connecting washer positioned between the first bearing and the second bearing. The first cage is attached at an inner side to the first washer and at an outer side to the connecting washer. The second cage is attached at an inner side to the connecting washer and at an outer side to the second washer.

Abstract: A preloaded bearing assembly includes two tapered roller bearings that each have an inner ring and an outer ring and rolling elements therebetween, wherein both bearings are preloadable with a predetermined preload force by relatively shifting the inner rings and/or the outer rings in an axial direction. Flanges are disposed on the inner rings and/or the outer rings and form an axial stop for the rolling elements, and at least one of the flanges is adjustable on or relative to the associated bearing ring in the axial direction. The axially adjustable flange is disposed with a predetermined press-fit on or relative to the bearing ring and is shiftable on or relative to the bearing ring against a frictional force provided by the predetermined press-fit, and the predetermined preload force is determined by a magnitude of the frictional force of the predetermined press-fit.

Abstract: A surface treated bearing component and a bearing (10) including such bearing component. The bearing component may include a peripheral surface adapted for contacting a rolling body (16). A mass adjoins the surface. The surface has a plurality of visible overlapping striped regions (26, 28) generally devoid of any surface erosion. The surface may have a graphitic layer (36) formed in situ thereon. The mass portion may include a first region (30) having a depth (e.g., of about 50 to about 200 micrometers) and a first carbon content. The mass may include a second region (32) generally adjoining the first region having a depth (e.g., about 50 to about 100 micrometers) and a second carbon content less than the carbon content of the first region. A third region (34) generally adjoins the second region and has a third carbon content less than the carbon content of the first and the second region.

Abstract: Apparatuses (10) for and methods of imparting a laser surface treatment to an exposed outer surface (12) of a rolling bearing component having a carbon-containing coating thereon. The apparatus (10) includes a support housing structure (16). A rolling bearing carrier has a surface adapted to receive and engage at least one ring of a rolling bearing. A motor (22) mounted to the support housing structure (16) is coupled with the carrier and adapted for rotatably driving the carrier. A laser beam emitter aims a laser beam at an exposed surface (12) of the rolling bearing component. The carrier is rotated while the rolling bearing component is in generally opposing relationship with the laser beam so that energy from the beam causes at least a portion of the coating on the bearing component to volatilize and be removed while also causing at least a portion of a carbon content of the coating to diffuse into the bearing component.

Abstract: An inner ring includes: a pair of shoulder outer peripheral surfaces on first and second axial sides of a raceway surface of the inner ring in contact with balls; seal grooves disposed in first and second axial ends of the inner ring and defining labyrinth clearances with lips; and edges disposed on the first and second axial sides. Each of the edges is configured to cause grease flowing along an associated one of the shoulder outer peripheral surfaces to leave the shoulder outer peripheral surface in the direction of an extension thereof. Each of the lips includes a lip oblique surface functioning as a guide surface to guide the grease that has left the edge not to a radially inner region of the bearing but to a radially outer region of the bearing.

Abstract: A segmented cage for a ball bearing is provided, having multiple independent spacers, distributed at intervals between rolling elements of equal number to the spacers. A pocket slot is formed on each of two sides of each spacer in a position of contact with the rolling element, a concave curved surface adapted to hold the rolling element is formed in the pocket slot, and opposing pocket slots of adjacent spacers are matched to form a cage pocket for enveloping the rolling element. At least one main oil hole is formed in each spacer, running through the interior of the spacer and opening at the pocket slots on the two sides. The rolling element is held by the concave curved surface such that the rolling element is unable to contact with an opening edge, in the pocket slot, of the at least one pair of main oil holes.