Abstract: This compressor comprises a compressor body, an electric motor that has a rotating shaft extending along an axis and drives the compressor body via the rotating shaft, and a housing that houses the compressor body and the electric motor. The electric motor has a rotor capable of rotating about the axis and an annular stator centered about the axis. The housing has a housing body and a pair of highly rigid parts that are provided on the outer side of the housing body in positions opposite in the radial direction and that have higher rigidity than other portions. The stator is fixed to the inner peripheral surface of the housing at a plurality of fixing points provided at positions different from points where the housing intersects with a first straight line connecting the pair of highly rigid parts and a second straight line orthogonal to the first straight line.

Abstract: A method for operating an impeller, in the case of which method the impeller comprises an impeller housing (15) and a motor housing (19) which is arranged in the impeller housing. A motor (16) is arranged in an interior space (36, 38) of the motor housing (19), wherein an impeller rotor (14) is driven by way of the motor (16), in order to generate an air stream along an annular chamber (31) which is enclosed between the impeller housing (15) and the motor housing (19). A positive pressure is applied in the interior space (36, 38) of the motor housing (19), with the result that a leakage flow which is directed to the outside from the interior space (36, 38) of the motor housing (19) is produced through a sealing gap (37) which is arranged between the motor shaft (17) and the motor housing (19). The invention also relates to an associated impeller.

Abstract: A micro flow device for separating or isolating cells from a bodily fluid or other liquid sample uses a flow path where straight-line flow is interrupted by a pattern of transverse posts. The posts are spaced across the width of an expanded collection chamber region in the flow path, extending between the upper and lower surfaces thereof; they have rectilinear surfaces, being curved in cross-sections, e.g. circular or tear-drop shaped, and are randomly arranged so as to disrupt streamlined flow. The device is oriented so that its lower surface is aligned at about 45° to the horizontal. Sequestering agents, such as Abs, which are attached to surfaces of the collection region via a hydrophilic coating, preferably a permeable hydrogel containing isocyanate moieties, are highly effective in capturing cells or other targeted biomolecules while the remainder of the liquid sample exits horizontally.

Abstract: A combined fan structure includes sub-fans and a connector connected between two adjacent sub-fans, the sub-fan includes an impeller mounting shell and an impeller assembly mounted on the impeller mounting shell, each of two sidewalls of the impeller mounting shell away from each other is respectively configured with two sockets, two sidewalls of the two sockets away from each other are each configured with an insertion opening configured for the connector to be inserted into, two sidewalls of the socket adjacent to the insertion opening are respectively configured with a limiting bar, a limiting channel is formed between the limiting bar and a bottom of the socket, the limiting channel is in communication with the insertion opening; a snapping groove is defined at the bottom of the socket, when the connecting plate body is inserted in the socket, the hook is snapped in the snapping groove.

Abstract: A manual-adjustment-type device for adjusting the swing angle of an electric fan according to identifications, the device comprising an identification disc, an angle adjustment knob and a sliding slot-sliding block crank adjustment mechanism.

Abstract: A ceiling fan blade protection system is disclosed. The system includes a ceiling fan that has a first fan blade, a transparent first blade cover, and an adhesive material. The first blade cover is shaped like the first fan blade as a bag and defines a first opening, a first upper surface, and a first lower surface. The first blade cover is slidably mounted on and removable from the first fan blade. The adhesive material is bonded with the upper surface of the first blade cover and designed to collect dust.

Abstract: A device for centering and guiding a shaft of an aircraft turbine engine is provided. The device includes an outer ring of a rolling bearing extending about an axis and having orifices, an annular bearing support extending about the axis and at least partially about the ring, the support having orifices and a series of studs for connecting the ring to the support. The studs can be distributed about the axis and extend parallel to the axis. The ends of first studs can be engaged without clearance in the orifices, and ends of second studs can be engaged with clearances in the orifices of the ring and/or of the support, the clearances being configured so that the device has different stiffnesses in at least two directions perpendicular to the axis.

Abstract: A multistage centrifugal compressor capable of maintaining and improving efficiency while having a static flow path with a reduced outer diameter is provided. Each of return flow paths is provided with a plurality of return vanes disposed in a circular cascade form centered on a center line of a rotational shaft. Each of the return vanes is disposed as a leading vane (8A) and a trailing vane (8B). The trailing vanes are offset toward the pressure surface side of the leading vanes in a circumferential direction and provided so as to guide a flow from the pressure surface side of the leading vanes to negative pressure surfaces of the trailing vanes.

Abstract: A gas turbine engine includes a turbomachine comprising a compressor section, a combustion section, and a turbine section arranged in serial flow order; a fan defining a fan axis and comprising a plurality of fan blades rotatable about the fan axis; and a pitch change mechanism operable with the plurality of fan blades to control a pitch of the plurality of fan blades. The pitch change mechanism imparts a torque to each fan blade of the plurality of fan blades via first and second forces imparted in opposite directions to each fan blade of the plurality of fan blades.

Abstract: The disclosure relates to a slurry pump for mineral processing and a pump housing for a slurry pump. The pump housing comprising a front part, a peripheral part, and a back part. The peripheral part comprises one or more first protrusions and/or indentations configured to create a turbulent flow.

Abstract: A liquid cooling pump unit including a pump unit and water block unit is provided. The pump unit includes a chamber body and rotor assembly unit. The rotor assembly unit is mounted to and in fluid communication with the chamber body. The pump unit is mounted to and in fluid communication with the water block unit. The chamber body includes a chamber bottom having a chamber side including a pair of velocity enhancing openings. The pair of velocity enhancing openings is configured so that the working fluid flows from the rotor assembly unit to the water block unit via the pair of velocity enhancing openings. The rotor assembly unit is configured to increase a pressure and flow of working fluid flowing through the water block unit. The pair of velocity enhancing openings is configured to increase a velocity of the flow of working fluid to the water block unit.

Abstract: A centrifugal pump includes at least one impeller. Downstream of the impeller there is arranged a guide device. The guide device is a hybrid component that includes at least one conventionally manufactured constituent and at least one generatively manufactured constituent.

Abstract: A blower according to an embodiment of the present disclosure includes: a case; a fan; and a diffuser disposed downstream of the fan and guiding air, discharged from the fan, toward the discharge ports, wherein the diffuser includes: an outer wall; an inner wall spaced apart inwardly from the outer wall so that an air passage is formed therebetween; and a plurality of vanes extending radially between the outer wall and the inner wall and dividing the air passage into a plurality of unit passages, wherein the outer wall and the inner wall are formed to have areas with different radial separation distances D between the outer wall and the inner wall, such that in an area of the air passage of the diffuser in which air is discharged to a portion having a high flow resistance in the blower, the radial separation distance D increases to widen the air passage S, thereby compensating for the asymmetry of the passage inside the blower, allowing a uniform volume of air to reach the entire area of the discharge ports,

Abstract: Provided is a turbo compressor capable of compressing a gas and supplying the compressed gas to outside, the turbo compressor including a compression unit including an impeller for compressing a gas introduced through a compressed gas inlet, a motor including a rotating shaft having an end coupled to the impeller, to rotate the impeller, a housing including a motor accommodation space for accommodating the motor, a cooling air channel provided to pass through the motor accommodation space and formed to continuously circulate a cooling gas accommodated therein, one or more air bearings supporting a radial load or an axial load of the rotating shaft, and a non-contact explosion-proof unit provided as a passage through which flames produced in an inner space of the housing pass so as to be cooled and then discharged to the outside, and having a width less than or equal to a predetermined value and a length greater than or equal to a predetermined value, wherein a compressed gas channel is spatially separate from

Abstract: A blower includes a housing through which air is introduced, a plurality of discharge ports disposed above the housing, each having a discharge port, and facing each other, a blowing space formed to be spaced at least partly between the plurality of discharge departments facing each other and open at least front and rear, a ground disposed on a downstream side of the blowing fan, spaced downward from the plurality of discharge departments, and connected to the housing, and a supporter extending upward from the ground to support the plurality of discharge departments. Accordingly, it is possible to improve blowing performance of the blower by reducing the occurrence of vortex through a pressure buffer zone formed by vertical separation of the ground and the discharge department, and structural stability of the blower can be improved by supporting the discharge department by the supporter and ground disposed inside the housing.

Abstract: A hydraulic system includes: a first hydraulic cylinder including a first volume chamber and a second volume chamber; a second hydraulic cylinder including a third volume chamber and a fourth volume chamber a first connection pipe that allows the first volume chamber and the third volume chamber to communicate with each other; a second connection pipe that allows the second volume chamber and the fourth volume chamber to communicate with each other; and a correction mechanism that corrects a position of the first piston by causing the first piston to advance or retreat in a state where the second piston is stationary, in which the correction mechanism includes a brake that regulates a movement of the second piston and, a bypass pipe that allows the first connection pipe and the second connection pipe to communicate with each other; and a valve that opens and closes the bypass pipe.

Abstract: A solenoid valve manifold (10) includes a connector member (70) that is formed by integrating a base portion (71) with a first connector portion (80) configured to electrically connect a first conductive member (52) to a circuit board (41) and a second connector portion (90) configured to electrically connect a second conductive member (62) to the circuit board (41). The base portion (71) has a through-hole (72). The base (30) includes two engagement projections (46). The base portion (71) is elastically deformable in a direction intersecting an insertion direction when the two engagement projections (46) are inserted into the through-hole (72). The connector member (70) is configured to be attached to the base (30) when a part of the base portion (71) around the through-hole (72) is engaged with the two engagement projections (46).

Abstract: A pneumatic stepper motor includes a housing, said housing accommodating at least part of: a rack or geared axle comprising a plurality of gear elements; and two pistons, each comprising at least two teeth, said pistons being arranged to cooperate with said rack or geared axle. The racks may either be straight or curved. The pistons are preferably double-acting pistons. A device includes at least one, and preferably a plurality of, such pneumatic stepper motor(s). The device may in particular be an MRI-compatible robotic system, more in particular for example an MRI-guided breast biopsy device.

Abstract: A working cylinder has a cylinder tube has closure parts arranged at tube ends. The cylinder tube and the closure parts define a cylinder interior. The cylinder has a coupling section that has one of the closure parts, a cylinder tube end and a hollow adapter body. The closure part has an external thread and the adapter body has an internal thread that define a common threaded section constructed to releasably couple the closure part and the adapter body. The cylinder tube end is connected to the adapter body on a cylinder tube side thereof by a ring weld seam. The weld seam defines a sealing plane sealed with respect to a pressure media. The piston unit defines at least one working chamber inside the cylinder.

Abstract: A system for an air regulated controller. In one embodiment, a solar powered air regulated controller is disclosed. This allows the tanks to be pneumatically controlled via air rather than wet gas. The result is significant emissions reduction. Additionally, as less wet gas is used for venting, more is directed to the downstream sales line.

Abstract: A system for automatically actuating a hydraulic accumulator—useful for oil collection systems—capable of operation while maintaining a zero or near zero draw of electrical energy.

Abstract: A clamp (10) for the composition of a technical structure for furniture, protection and/or delimitation provided with vertical elements, the clamp (10) comprises an upper jaw (1), a lower jaw (2) and a locking system (3) fixed to said upper jaw (1). The locking system (3) comprises thrust means (33) and at least one pin (32). The lower jaw (2) has at least one hole (7) in a position corresponding to at least one pin (32) adapted to be inserted into said at least one hole (7) when said thrust means (33) are in an extended position, in order to lock and close the clamp (10).

Abstract: A method of anchoring a first object in a second object. The second object defines an opening. The first object has an insert portion that defines an insertion axis and has an outer shape that may form an undercut with respect to axial directions. The method includes inserting the insert portion in the opening, with a hardenable composition (prepolymer; mortar) between a wall of the opening and the insert portion, and causing mechanical vibration energy to impinge to cause the hardenable composition to undergo a chemical hardening process to yield a hardened composition, so that a first connection between the first object and the hardened composition and a second connection between the hardened composition and the second object results, whereby the first object is anchored in the second object. The first connection and/or the second connection may include an adhesive connection and/or a positive-fit connection.

Abstract: Provided is an element that allows being rigidly joined to a metal plate without adding a shape difficult to machine (a shape required for joining) in advance. An element 1 includes a flange-shaped part 2 and a columnar part 3 having a smaller diameter than the flange-shaped part 2. In a state where the columnar part 3 is inserted into an insertion hole 12 drilled in the metal plate 11, by applying pressure in an axial direction to deform and flow the metal plate 11 in a compression direction at the flange-shaped part 2 and to deform a part at a distal end edge of the columnar part 3 to expand in diameter to receive a deformed and flowed metal, so as to allow the element 1 to be joined to the metal plate 11 made of metal.

Abstract: A component holder, in particular for aircraft, for indirectly securing components to the fuselage or body shell. The component holder has a base portion and an attachment element which is lockable to the base portion and has a component receiving member arranged thereon. The base portion has a circular shell form, and the upper edge has retention and locking elements. The lockable attachment element has a s dome-like basic structure, and the lower edge region has retention and locking elements which complement those of the base portion and are lockable therewith. The component receiving member is formed integrally on the attachment element and arranged at a dome zenith on the outer side. The dome is formed from at least three frames which are angularly offset on the circumference. The frames extend from the dome lower edge region to the base location of the component receiving member at the dome zenith.

Abstract: A fastener structure and an assembling method thereof are introduced, the fastener structure includes a head portion, rod member and fitting member. The head portion has a lateral holding portion and vertical receiving portion. The rod member has a lateral attaching portion and engaging member. The rod member is penetratingly disposed at the receiving portion to allow the attaching portion to correspond in position to the holding portion. The fitting member is penetratingly disposed at the attaching portion and the holding portion to fit the head portion and the rod member together. To couple two objects together, the head portion drives the rod member to fasten or disengage, so as to achieve quick coupling and easy unfastening.

Abstract: Embodiments of the present disclosure provide a fastener for a server cabinet and the server cabinet. The fastener for the server cabinet includes an upper limit member, a fastening spring, a lower limit member, and a fastening pin rod. The present disclosure relates to the field of server cabinet technology. The fastener for the server cabinet provided in the present disclosure is small in volume, compact and reliable in structure, stable in fastening, and suitable for fastening connection in narrow space. The fastener may easily achieve fastening or unfastening operation by rotating 90° without restriction of a rotation direction, which is fast in installation and convenient for disassembly and assembly.

Abstract: An adjustable-length stretch cord system has a connector and a stretch cord. The position of the connector along the stretch cord can be adjusted so as to adjust the effective length of the stretch cord. The connector has a primary path through which the stretch cord can slide during adjustment. A secondary path is also defined within the connector and parallel to the primary path. A cleat between the primary path and secondary path receives and compresses the cord as the cord turns about 180° in the cleat. The secondary path can have teeth that can engage and block sliding of the cord toward the cleat. The secondary path can also have grip that holds the cord.

Abstract: A carabiner comprises a body and a gate fixed to the body to be movable between closed and open positions. A catch is fixed to the body and installed movable between a blocking position and a release position of the gate in the closed position. A first spring is connected to the gate and to the catch. The first spring biases the gate to the closed position and biases the catch to the blocking position. In the closed position, the first spring is curved with a first mean radius of curvature. In the open position, the first spring is curved with a second mean radius of curvature that is larger than the first radius of curvature.

Abstract: A casing cap is connected to an end of an outer casing through which an inner cable is inserted, the casing cap comprising: a main body portion having a curved guide path guiding the inner cable in a curved state; an outer casing connecting portion protruding from the main body portion at a one-side end in an extending direction of the guide path; and an engaging portion for engaging the casing cap with an mounting target, wherein the engaging portion protrudes from the main body portion at the other-side end in the extending direction of the guide path.

Abstract: A fibre-reinforced polymer composite shaft for transmitting loads along a central axis is provided. The composite shaft comprises a first interface surface extending along the central axis and comprising at least one helical groove and/or a plurality of circumferential grooves for engaging with at least one corresponding helical ridge and/or a plurality of corresponding circumferential ridges of a second interface surface of an end fitting. The at least one helical groove and/or the plurality of circumferential grooves comprises at least one flank with a flank angle of between 32° and 51°. In such an assembly, a preload structure is arranged to provide a radial biasing force to bias the first interference surface against the second interference surface.

Abstract: The ball socket assembly includes a housing with an inner bore and a bearing that is received in the inner bore of the housing. The bearing is made as a monolithic piece of a plastic material and has a curved bearing surface which surrounds a ball cavity. A ball stud, which has a ball portion and a shank portion, is received in the ball cavity of the bearing. The ball portion has an equator. The curved bearing surface of the bearing is in slidable contact with the ball portion of the ball stud on opposite axial sides of the equator. The plastic material of the bearing comprises 8-12 mass percent polytetrafluoroethylene, 2-6 mass percent carbon fibers, and the remainder acetal. The ball stud having a hardened layer along at least a portion of its outer surface, the hardened layer being a Nitrox layer.

Abstract: An outer joint member 31 and a hub wheel 16 are coupled so as to be able to transmit torque by meshing face splines 51 and 52 respectively provided and applying a tightening force in an axial direction between both the face splines 51 and 52. Shapes of tooth surfaces of both the face splines 51 and 52 are determined such that, in a process of bringing both the face splines 51 and 52 close to each other in the axial direction and meshing with each other, tooth surfaces 51a and 51b of both the face splines 51 and 52 first come into contact with each other in, among an outer diameter portion Ea of a meshing region X between both the face splines, an inner diameter portion Ec, and an intermediate portion Eb sandwiched between the outer diameter portion and the inner diameter portion, the intermediate portion Eb.

Abstract: In a wheel bearing device, an axial end surface of a hub 1 of a wheel bearing 6 and an axial end surface of an outer joint member 20 of a constant velocity universal joint 7 are coupled by a recess-and-protrusion fitting structure (face spline structure X) in a torque transmittable manner. An inner peripheral surface of the hub 1 of the wheel bearing 6 and an outer peripheral surface of the outer joint member 20 of the constant velocity universal joint 7 are fitted to each other.

Abstract: According to an aspect, a bearing compartment includes a body, one or more oil cooling channels integrally formed within the body, and one or more oil nozzles coupled to the one or more oil cooling channels. At least one of the one or more oil nozzles is oriented to direct oil toward a thermal zone with a predicted hot spot within the bearing compartment.

Abstract: According to an aspect, a bearing compartment includes a housing and a spring integrally formed with the housing. An oil passage is internally fabricated within the housing, and the oil passage extends into the spring. Further aspects can include a gas turbine engine with a bearing system and a method of manufacturing a bearing compartment.

Abstract: A ball bearing for the scroll of a scroll compressor, having an outer race, an inner race and a plurality of balls disposed therebetween, characterized in that the balls are held and guided in a ball bearing cage, wherein the ball bearing cage is formed as an externally guided plastic cage with a reinforcing structure made of metal as a hybrid cage.

Abstract: A cage is provided which is less likely to be deformed by a centrifugal force, and in which the strength of a weld is less likely to decrease. Each horn portion includes a base wall axially connected to a ring portion, and located between pockets; and a pair of claws separated from each other. The pair of claws each has a pocket inner surface facing the pocket; and an opposed surface (14) on the side opposite from the pocket inner surface. The base wall includes a pair of connection portions axially connecting the respective claws to the ring portion; and an intermediate portion circumferentially connecting the connection portions to each other. A weld is disposed in a resin area consisting of one of the claws, one of the connection portions, and a circumferential section of the ring portion.

Abstract: A bearing device includes an oil supply body that cooperates with a bearing ring to form an oil retention space to be filled with a lubricating oil. The oil retention space is open at least on a rolling element side. Thus, the lubricating oil is supplied from the oil retention space to a rolling bearing.

Abstract: An oil distributor is provided for a bearing chamber. The oil distributor includes an outer annular manifold, which is integrally formed with an interior surface of the bearing chamber and which defines a first interior cavity receptive of pressurized oil which defines a first interior cavity receptive of pressurized oil, an inner annular manifold, which defines a second interior cavity and comprises an interior facing surface defining holes respectively communicative with the second interior cavity and one or more support struts by which the inner annular manifold is supported within the outer annular manifold. Each of the one or more support struts defines interior lines by which the pressurized oil flows from the first interior cavity to the second interior cavity and to the holes.

Abstract: According to an aspect, a bearing compartment includes a housing having an upper housing portion and a lower housing portion, and a support structure fabricated within the bearing compartment. The support structure includes an upper portion within the upper housing portion and a spring section within the lower housing portion. The spring section includes a plurality of struts and is separable from the support structure for use as a spring within the housing.

Abstract: As a stopper for restricting movement of a rotary shaft 31 of a transmission device 3 and a shaft part 41 of a first drive-side joint member J11 in a direction of approaching each other, a stopper part 5 is formed separately from the shaft part 41 and a yoke body part 42 of the first drive-side joint member so that the stopper function of the first drive-side joint member J11 is guaranteed by the separately-formed stopper part 5 in the present invention. With this configuration, a change in the gravity center position of the first drive-side joint member caused due to build-up processing on the shaft part or the yoke body part is suppressed. It is possible to restrict relative movement of the first drive-side joint member and the rotary shaft while ensuring adequate machining for formation of a shaft-part-side seal surface on the first drive-side joint member.

Abstract: A drive system for a vehicle closure includes a drive unit having a first coupler supported for rotation about a first longitudinal axis. The first coupler defines a receptacle. A second coupler has a first side and a second side configured to engage with a hinge component of a vehicle. A driveshaft extends between the first and second couplers at an angled orientation relative to the first and second axes. The driveshaft has a first end connected to the first coupler and a second end connected to the first side of the second coupler.

Abstract: A drive system as disclosed includes an input shaft, an output shaft, and at least two coupling elements respectively coupled to the input shaft and the output shaft. In order to absorb assembly and manufacturing tolerances with respect to the shafts, the coupling elements and their attachment to the shafts and thereby prevent jamming of the drive system, at least one coupling element has an elastically deformable section, the elastically deformable section having a different material or a different cross-section than an adjacent section of the coupling element.

Abstract: A clutch assembly includes a first shaft extending along and rotatable about a first shaft axis, and a second shaft extending along and rotatable about a second shaft axis that is parallel with the first shaft axis. The clutch assembly also includes a first friction component coupled to and rotatable with the first shaft, and a second friction component coupled to and rotatable with the second shaft. The clutch assembly additionally includes a band clutch assembly. The band clutch assembly includes a retaining band disposed about the first and second friction components, and a retaining component coupled to the retaining band. The retaining band is engageable with the first and second friction components, and the retaining band and the retaining component are rotatable with the first and second shafts during rotation of the first and second shafts.

Abstract: An object of the invention is to provide a positive clutch that has a high rigidity and simple structure, and offers potential to allow easy adjustment of torque limit load, suppress friction loss and noise generation, realize a size reduction, and extend the service life. This positive clutch is configured to prohibit relative rotation of an outer and inner races by circumferentially holding each of a plurality of rollers between an outer race slope portion and an inner race slope portion. The clutch includes a torque limiter mechanism, which includes a piston member having a flat portion that forms the outer or inner race slope portion, and a resilient member that applies a constant load on the piston member. The piston member is slidably accommodated in a piston member accommodating hole formed in the outer race or the inner race.

Abstract: This clutch control device includes a clutch apparatus configured to connect and disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a driving force for actuating the clutch apparatus, a control unit configured to drive the clutch actuator, and an operating force transmission mechanism configured to transmit an operating force of a driver with respect to a clutch operator to the clutch apparatus, an operating force sensor configured to detect the operating force of the driver is provided in the operating force transmission mechanism, and the control unit drives the clutch actuator according to a detection value of the operating force sensor.

Abstract: A method for standstill control of a multi-body system (MKS) having at least one drive body and at least one friction body mechanically coupled to the drive body. A static friction acts on the friction body, a velocity of one of the bodies of the MKS is determined as measurement velocity subject to a measurement noise and converted in a dead zone element to a dead zone velocity. The dead zone velocity assumes the value of zero for values of the measurement velocity above a value of zero and below a positive dead zone limit, and assumes the value of the measurement velocity for values of the measurement velocity above the positive dead zone limit. The dead zone velocity is provided to a velocity controller as an actual velocity for controlling.

Abstract: A method for effecting efficient engagement of a clutch to interconnect an engine and an implement which monitors operational parameters of the engine and implement and determines from those operational parameters at least two ramp rates for the application of hydraulic pressure to the clutch. The hydraulic pressure is applied at a first ramp rate to the clutch for a first period and applied at a second ramp rate to the clutch for a second period. A determination is made from the relationship between the input and output speeds of the clutch whether the clutch is fully engaged. If it is not fully engaged, clutch pressure is released and the ramp rates are reevaluated and reset. They are then sequentially applied for the first and second periods. The process repeats until full engagement is achieved or a determination is made that full engagement cannot be achieved.

Abstract: A ball ramp caliper brake is disclosed. The brake can include a housing having an actuator side with a first pad nearer thereto and a carrier side with a second pad nearer thereto; the actuator side including ball ramps on an inner part, and threaded holes, the carrier side including housing holes therethrough; bolts respectively passing through one of the housing holes and respectively threaded into one of the threaded holes, to thereby compress a respective spring against the first pad; a lever having ball ramps facing the actuator side ball ramps; and a plurality of balls each being between respective ones of the ball ramps; wherein the springs are positioned coplanar with a radial center of the ball ramps, such that force of the springs provides constant compressive load on the ball ramps, and such that the force does not cause the first pad to tip.