Abstract: The invention discloses an energy storage device, comprising a mounting seat, a first spring energy storage component, a second spring energy storage component, a one-way limiter, a transmission component, and a generator; the first spring energy storage component comprises a first rotating shaft, a first spring, and a first spring barrel; the second spring energy storage component comprises a second rotating shaft, a second spring, and a second spring barrel. The device uses two spring energy storage components to collect the gravitational potential energy of different dispersion points at the same time, and store it in the corresponding spring, then through the action of the one-way limiter, the energy of the spring with larger energy storage can be released and converted into electrical energy.

Abstract: The present invention relates to a flow control method for a high-accuracy and high-stiffness hydrostatic device, comprising: a main body and an auxiliary body; the upper surface of the main body forms a first flow channel, and a lug boss is formed on the first flow channel; the upper surface of the main body forms a second flow channel; the middle of the main body is concave down to form a pressure stabilizing cavity; the end of the first flow channel is provided with first throttling holes; the second flow channel is provided with a main oil hole; the first flow channel is provided with an oil distribution channel; the lug boss is provided with a second throttling hole; a bump matched with a bearing platform is formed on the bottom of the auxiliary body; a film sheet is arranged between the bump and the bearing platform; and the surface of the bump is provided with a groove.

Abstract: An inner sliding surface for a radial plain bearing, including four circle arcs in at least one cross section. A first arc and a second arc of the four circle arcs lie on different sides of a longitudinal sectional plane which intersects a third arc of the four circle arcs, a fourth arc of the four circle arcs and a common center point of the third arc and the fourth arc. The first arc and a center point of the first arc lie on different sides of the longitudinal sectional plane, and the second arc and a center point of the second arc lie on different sides of the longitudinal sectional plane.

Abstract: A rolling element cage for positioning a plurality of rolling elements between two rail elements of a telescopic rail or a linear guide which are mounted so as to be movable relative to each other is provided. The rolling element cage is composed or can be composed of two or more module elements which include a base module and one or more extension modules. Each module element has at least two receiving legs, each having one or more openings for receiving rolling elements, and at least one connecting section connecting the two receiving legs, the base module and the one or more extension modules being fixedly or releasably connected or connectable to one another in series in the longitudinal direction of the rolling element cage via fasteners.

Abstract: An arrangement for supporting one or more bearings of a crankshaft assembly of a hydraulic fracturing pump includes a frame and one or more bearing supports. The frame is of a first material and defines one or more bearing support profiles. The bearing supports are of a second material different from the first material of the frame. The bearing supports are cast-in-place within the corresponding bearing support profiles of the frame and are configured to be in contact with an outer race of the corresponding bearings of the crankshaft assembly. Compared to the first material of the frame, the second material of the bearing supports is more effective at preventing slippage of the bearings.

Abstract: There is described an actuator device comprising a single molded housing, a linear bridge feature, a spring hook retention feature, and a power spring. The single molded housing is formed by integrating the linear bridge feature across the single molded housing and the spring hook retention feature to one side of the linear bridge feature. The power spring is inserted laterally through the linear bridge feature of the actuator device. The power spring includes a spring hook at one end, and the spring hook of the power spring attaches to the spring hook retention feature of the actuator device. The power spring applies, at least in part, a torque to a control shaft coupled to the actuator device.

Abstract: To provide a grease-sealed bearing that is superior in fretting wear resistance and sealing performance when used under an oscillation condition with acceleration and deceleration such as a condition used in a robot joint. A grease-sealed bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, a plurality of rolling elements 4 interposed between the inner ring 2 and the outer ring 3, and a grease composition 7 sealed around the rolling elements 4. The bearing oscillates such that a bearing rotational direction changes while accelerating and decelerating. The grease composition contains a base oil and a thickener. The worked penetration of the grease composition is 310 or more. The thickener is a calcium sulfonate complex soap.

Abstract: A bushing for use in an aircraft includes a hollow cylindrical shaft having a first end and a second end opposite the first end, a radially outwardly extending flange disposed at the first end of the hollow cylindrical shaft, an entry way disposed along the radially outwardly extending flange, and a lubrication passageway fluidly coupled to the entry way. The lubrication passageway extends between the first end and the second end.

Abstract: The present disclosure relates to a low friction bearing liner for a solenoid may include a low friction layer. The low friction layer may include a first fluoropolymer matrix component and a first thermoplastic filler component distributed throughout the first fluoropolymer matrix component. The content of the first fluoropolymer matrix component may be at least about 1 wt. % and not greater than about 99 wt. % for a total weight of the first low friction layer. The content of the first thermoplastic filler component may be at least about 1 wt. % and not greater than about 99 wt. % for a total weight of the first low friction layer.

Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements housed between the inner ring and the outer ring, and a sealing device. The sealing device includes a first shield connected to the inner ring, a second shield connected to the outer ring to rotate therewith, a first sealing element connected to the second shield and provided with a sealing lip contacting the first shield, and a second sealing element connected to the first shield and facing a radially outer section of the first sealing element, defining a channel therebetween inclined at an acute angle to a common axis of symmetry of the shields and delimited between a conical smooth lateral surface of the first sealing element and a lateral surface of the second sealing element arranged opposite and parallel to the first lateral surface and provided with a plurality of steps.

Abstract: A retainer that suppresses retainer sound, includes a main body portion, a plurality of pockets provided in a circumferential direction, and penetrating through the main body portion in a radial direction, and a retaining surface facing a ball, and forming a C shape when viewed from the radial direction. The retaining surface includes a C-shaped outer circumferential corner portion, a C-shaped inner circumferential corner portion, a first retaining surface arranged in a first rotational direction with respect to the ball, and a second retaining surface arranged in a second rotational direction with respect to the ball. The first retaining surface extends along a first spherical surface obtained by rotating a first virtual circle around a virtual line passing through an axial center and a center of the ball. The second retaining surface extends along a second spherical surface obtained by rotating a second virtual circle around the virtual line.

Abstract: A bearing unit for a marble cutting machine, comprising a radially outer ring, rotatable about an axis of rotation (X) of the bearing unit and provided with a radially outer flange portion; a stationary radially inner ring having a raceway and a through hole; a row of rolling bodies interposed between the radially outer ring and the radially inner ring; a seat formed in the radially inner ring and shaped as a portion of a circular crown; and a sensor fit in the seat, wherein a ratio between an internal diameter (D) of the through hole and an axial thickness (t) of the radially inner ring is between 6.7 and 11.1.

Abstract: The gas bearing pad includes a main body portion including a recess portion, a porous body fitted into the recess portion of the main body portion, and a bolt inserted into a bolt insertion hole provided in the porous body and fixing the porous body to the main body portion. A gas bearing is formed between the porous body and the base by blowing compressed gas from the main body portion through the porous body toward the base. A counterbore hole that accommodates a head portion of the bolt is provided in the bolt insertion hole. In the counterbore hole, a space is provided between a top surface that faces the guide surface in the head portion of the bolt and a bearing surface that faces the guide surface of the porous body.

Abstract: A slew bearing that includes an inner ring. The slew bearing also includes a first outer ring positioned about a first portion of the inner ring. The slew bearing also includes a second outer ring operably engaged with the first outer ring, wherein the second outer ring is positioned about a second portion of the inner ring opposite to the first outer ring. The slew bearing also includes at least one set of ball operably engaged with the inner ring and one or both of the first outer ring and the second outer ring. The inner ring of the slew bearing is configured to rotate about the first outer ring and the second outer ring.

Abstract: A bearing unit with rolling bodies for use in the food and beverage industry, for example. The bearing unit may have a high resistance to wear and to corrosion and may have a radially outer ring, stationary, a radially inner ring, rotatable with respect to an axis of rotation (X), and a sealing and protection device mounted on the radially inner ring and on opposite sides of the radially outer ring, both to protect the radially outer ring from the action of external contaminants and to prevent any such external contaminants from getting into a gap between the radially outer ring and the radially inner ring. The bearing unit may further have protective layer being arranged in contact with the radially inner ring, and being made of composite polymeric material to isolate and protect the radially inner ring from external contaminants.

Abstract: A sensor bearing unit comprising: a bearing comprising first and second rings, each provided with an outer cylindrical surface, an inner cylindrical surface, and lateral surfaces, and an impulse ring provided with a target holder being axially mounted against one of said lateral surfaces, and comprising a fixing portion secured to the first ring and coming into radial contact with said one of cylindrical surfaces and an abutment portion coming into axial contact with said lateral surface. Besides, at least one of the lateral and cylindrical surfaces is provided with a textured area comprising a plurality of ribs, and the abutment portion and/or the fixing portion of the target holder is made of a hard material and comprise a soft coating covering the hard material and inside which the ribs are engaged.

Abstract: Provided is a bearing device for a vehicle wheel comprising: an outer-side seal that is resistant to deterioration over time and can prevent foreign matter. This bearing device for a vehicle wheel comprises an outer-side seal member 7 that closes an outer-side opening end of an annular space formed by an outer ring 2 and a hub ring 3. The outer-side seal member 7 including a core metal 8 which is fitted to the outer ring 2, a seal member 10 which is joined to the core metal 8, and a metal ring 9 which is fitted to the hub ring 3 and with which the seal member 10 is in sliding contact. An annular space S is provided between the metal ring 9 and the hub ring 3, and the annular space S being filled with a sealing material 20.

Abstract: Rotor bearings for ESP motors can include anti-rotation tabs configured to engage with a stator during assembly of the ESP motor. Prior to insertion of the rotor bearing within the stator, the anti-rotation tabs may be held in place within axial slots in the outer surface of a bearing bushing of the rotor bearing using retention rings. The retention rings and the bearing bushing may be configured to allow for interference fit.

Abstract: The present invention relates to a bearing cup set for a steering column comprising a bearing cup and a securing element, wherein the bearing cup has a bearing cup portion for the at least partial receiving of a rolling bearing and a holding portion extending radially outwards starting from the bearing cup portion. The bearing cup portion has a first opening side with a collar extending radially inwards and a second opening side. The securing element is connected to the bearing cup in such a manner that the securing element fixes a rolling bearing received by the bearing cup portion in the axial direction in respect of the bearing cup. A steering column comprises a jacket tube in which a steering shaft is received by the rolling bearing so as to be rotatable. The rolling bearing is arranged in the bearing cup portion of the bearing cup.

Abstract: A wheel end assembly for a vehicle, comprising a central wheel support member such as a spindle or a steering knuckle, and an outboard wheel end bearing arranged concentrically around the central wheel support member. The outboard wheel end bearing comprises roller elements accommodated between an inner race-forming part and an outer race-forming part surrounding the inner race-forming part. The inner race-forming part is configured to be supported by the central wheel support member. The central wheel support member comprises a first rotational lock portion. The inner race-forming part comprises a second rotational lock portion configured to engage with the first rotational lock portion to prevent the inner race-forming part from rotating relative to the central wheel support member. The invention also relates to a vehicle comprising such a wheel end assembly.