Abstract: The purpose of the present invention is to provide: a slide member in which the bonding strength between a Bi-containing copper alloy layer and a substrate is enhanced; and a method for manufacturing the slide member. The slide member according to the present invention has a substrate and a copper alloy layer. The copper alloy layer comprises a copper alloy containing 4.0-25.0 mass % of Bi and has a structure in which Bi phases are scattered in a copper alloy structure. The volume ratio of Bi phases in the region of the copper alloy layer extending 10 ?m from the bonding interface with the substrate is not more than 2.0%. The slide member is manufactured by casting a molten copper alloy onto the substrate and causing the copper alloy to unidirectionally solidify.

Abstract: The invention relates to a sliding element, in particular for a stretching installation and/or a conveyor chain, comprising graphite or electrographite, wherein the sliding element has pores which have an open pore size of ?7.5% by volume, and wherein the particle size of the graphite particles used as a starting material for the sliding elements is between 3 ?m and 15 ?m.

Abstract: A bearing unit having at least one row of rolling bodies; and at least one cage for retaining a respective one of the at least one row of rolling bodies. The at least one cage comprising at least one base bar, a plurality of arms circumferentially spaced apart and extending from one side of the base bar, and a plurality of partially spherical cavities for retaining the respective one of the at least one row of rolling bodies. The respective row of rolling bodies and the at least one cage are in contact with each other along contact points positioned near a polar region of the respective one of the at least one row of rolling bodies, so that an angular distance (?) of the contact points with respect to an equator of the respective one of the at least one row of rolling bodies is between 40° and 75°.

Abstract: A cage arrangement comprises substantially flat rollers, which are guided in a roller cage arranged on a housing and are held in position by a substantially strip-like cage metal sheet attached to the housing at a position remote from the roller region. The cage metal sheet has a retaining piece that protrudes in the direction of a roller in an intended installation position and has an end-face region, the shape of which corresponds to that of a roller surface facing the retaining piece.

Abstract: A cage (110) for a roller thrust bearing (100), including a first cage half (120) including an annular portion (122), a first flange (130) extending axially from an inner peripheral edge (124) of the annular portion, and a second flange (132) extending axially from an outer peripheral edge (126) of the annular portion, and a second cage half (140) including an annular portion (142), a first flange (150) extending axially from one of an inner peripheral edge (144) and an outer peripheral edge (146) of the annular portion, a second flange (152) extending both axially and radially from the other of the inner peripheral edge and the outer peripheral edge, the second flange including a first flange portion (154) and a second flange portion (156), wherein the second flange portion of the second flange of the second cage half is disk-shaped and is disposed in a plane that is transverse to a longitudinal center axis of the roller retainer cage.

Abstract: There is provided an engine equipped with a supercharger that suppresses heat deterioration of engine oil. The engine equipped with a supercharger includes a supercharger; an oil supply passage that supplies engine oil to a shaft bearing part of the supercharger; an oil discharge passage that discharges the engine oil from the shaft bearing part of the supercharger; and a water-cooling-type oil cooler. The water-cooling-type oil cooler is provided in the oil discharge passage, and the engine oil discharged from the shaft bearing part of the supercharger is cooled by the engine cooling water that passes the water-cooling-type oil cooler. The engine cooling water is desirably supplied from the cylinder jacket to the water-cooling-type oil cooler.

Abstract: A coupling device for the torque-transmitting connection of a transmission with an electric machine, includes a drive element and an output element which are coupled with each other in a torque-transmitting manner. The drive element and the output element are electrically separated from each other by way of an electrical insulator.

Abstract: A shaft connection, e.g., for a motor vehicle driveline, comprises a metal shaft tube material and a metal connecting element. The connecting element comprises a connecting portion with an outer toothing which is pressed with a press fit into a connecting portion of the shaft tube so that an interlocking connection effective in the circumferential direction is formed for torque transmission, wherein the connecting element comprises a maximum outer diameter in the region of the outer toothing; wherein the shaft tube comprises an axial connecting region which is formed radially inwardly into a section of the connecting portion that is reduced relative to the outer toothing so that an interlocking axial connection effective in the axial direction is formed between the shaft tube and the connecting element for transmitting axial forces. A drive shaft can have such a shaft connection.

Abstract: The present disclosure provides an output shaft component and a power output mechanism. The output shaft component includes a housing connected to the driven member, an adapter shaft connected to an output shaft of the power output mechanism, and an elastic body mounted in the housing. The adapter shaft is rotatably mounted in the housing. The elastic body includes an inner ring, an outer ring located outside the inner ring, and an elastic portion connected between the inner ring and the outer ring. The adapter shaft is sheathed in the inner ring, the inner ring is synchronously rotatably connected to the adapter shaft, and the outer ring is fixed on the housing.

Abstract: A power take off includes a housing, an input mechanism that is supported in the housing and is adapted to be rotatably driven by a source of rotational energy, and an output mechanism that is supported in the housing and is rotatably driven by the input mechanism, the output mechanism being adapted to rotatably drive a rotatably driven accessory. The power take off further includes a two piece damping assembly that minimizes the transmission of torque transients from the input mechanism to the output mechanism. The two piece damping assembly may be an input cluster gear assembly that includes a first gear portion and a second gear portion that are supported for rotational movement relative to one another. The two piece damping assembly may also be part of a clutch assembly for selectively the output mechanism to be rotatably driven by the input mechanism.

Abstract: The wide-angle constant velocity joint (100) includes: a central core (101) forming respective inner yokes (24, 25) for connection and in which there is housed a guide disc (11); and outer yokes (103, 105). The central core (101) forms a lubricant reservoir (1) in communication with an annular seat (7) in which the guide disc (11) is slidingly received.

Abstract: A constant velocity joint includes an outer joint portion with a first longitudinal axis, a first attaching end, an aperture end and outer ball tracks on an inner circumferential surface, an inner joint portion with a second longitudinal axis, a second attaching end, an inner face facing towards the outer joint portion and inner ball tracks on its outer circumferential surface, balls for torque transmission between the outer and inner joint portions, an annular ball cage between the outer and inner joint portions with several cage windows in which the balls are guided. The inner and outer joint portions are arranged so that one outer ball track and one inner ball track are in each case arranged opposite to each other to form three different types of track pairs to receive one respective balls. The balls have different controlling behaviors due to different track geometries.

Abstract: A method of manufacturing a universal joint includes: temporarily assembling a bearing, which supports a shaft portion of a joint spider such that the shaft portion is rotatable, with respect to a through-hole and the shaft portion by press-fitting the bearing to a first position in the through-hole of a yoke; and clinching, after the bearing is temporarily assembled, a portion of the yoke around the through-hole, and pressing the bearing deeper into the through-hole with a clinched portion formed by the clinching to press-fit the bearing to a second position located deeper than the first position in the through-hole.

Abstract: A power transmission device for a vehicle is disclosed. The power transmission device includes a first rotating member, a second rotating member configured to rotate relative to the first rotating member, a torque transmission portion, and a hydraulic pressure applying portion. The torque transmission portion is configured to transmit torque from one of the first rotating member and the second rotating member to the other of the first rotating member and the second rotating member by pressure of hydraulic fluid. The torque transmission portion is disposed between the first rotating member and the second rotating member. The hydraulic pressure applying portion is configured to apply pressure to the hydraulic fluid of the torque transmission portion.

Abstract: A vehicular power transmission device includes: a support member; first and second rotating shafts rotating about a shaft; and first and second bearings supporting first and second rotating shaft, respectively, to be rotatable with respect to the support member. Further, an oil hole is formed in the support member for supplying lubricating oil to a space between the first bearing and the second bearing, the space is divided into first and second spaces on sides of first and second bearings, respectively, by a partition wall formed on the support member, the oil hole is formed in the support member so as to discharge the lubricating oil to one space of the first space and the second space, and a communication hole communicating with the first space and the second space is formed in the partition wall.

Abstract: An electric vehicle transmission method includes the steps of: detecting a gear-shift command; judging if the gear-shift command is in conflict, if it is in conflict, then it returns back to the step of detecting the gear-shift command while if it is not in conflict, then proceeds to the next step; proceeding to a synchronized position, a dispelling fork drives a synchronizer to make the synchronizer move from the original gear position to a synchronized position, and the dispelling fork does not move within a synchronized time; and proceeding to a target position, the dispelling fork drives the synchronizer again to make the synchronizer move to the target gear position.

Abstract: A band-sawing check valve device is provided. The band-sawing check valve device includes a main wheel, a transmission assembly, a driving assembly and a check valve assembly. The transmission assembly is linked to a transmission shaft. The transmission shaft is disposed to the transmission assembly, the driving assembly drives the transmission shaft to drive the main wheel, and the check valve assembly is used to limit the rotation of the main wheel in a single direction.

Abstract: A one-way clutch includes a rotating body, an outer ring arranged on an outer periphery of the rotating body, a roller, a biasing member, and a recess portion. The outer ring includes an indent portion. A wedge-shaped space is formed between the indent portion and an outer peripheral surface of the rotating body. The roller is disposed in the wedge-shaped space. The biasing member biases the roller to one side of the wedge-shaped space. The outer ring has a protrusion at a position corresponding to a radially outer side of the indent portion. The recess portion is formed continuously with the side surface in a circumferential direction of the protrusion on the outer peripheral surface of the outer ring.

Abstract: A friction clutch for a drivetrain includes an input shaft, an output shaft, a compressible friction pack including a normally closed spring system, and an actuating device. The compressible friction pack is for transmitting a torque between the input shaft and the output shaft in a closed state of the friction clutch. The actuating device is for producing an axial actuating force to compress the compressible friction pack. The actuating device includes an opening spring for exerting an opening force, a centrifugal mass unit including a ramp, and a switching element including a counterpart ramp. The centrifugal mass unit is movable through a radial travel at a predetermined rotational speed of the input shaft. The ramp and the counterpart ramp form a ramp pairing with a ramp gradient to convert the radial travel into the axial actuating force acting counter to the opening force to compress the compressible friction pack.

Abstract: A centrifugal clutch for a drive train of a motor vehicle includes an input part, an output part, a friction unit, a counterpressure plate, a shifting device, and a snap ring. The output part is arranged coaxially and rotatably in relation to the input part and includes a leaf-spring core with a fixing element. The friction unit includes first friction elements connected to the input part and second friction elements connected to the leaf-spring core. The second friction units are arranged in alternate layers with the first friction elements in an axial direction. The shifting device is arranged to clamp the first friction elements and the second frictional elements against the counterpressure plate for frictional engagement in response to a centrifugal force. The fixing element extends through the counterpressure plate. The counterpressure plate is fixed to the fixing element by the snap ring.

Abstract: A method and a device for operating a drive train of a motor vehicle are provided. The drive train includes at least a first and a second shaft, a first clutch having at least one first friction surface pairing, and an electric drive, the first and the second shaft being coupleable to one another via the at least one first friction surface pairing, wherein for cooling the first clutch, a fluid is used via which a drag torque of the first clutch is influenced after the first clutch is disengaged, the method including: a) Rotating the first shaft and the second shaft when the first clutch is at least partially engaged; b) Disengaging the first clutch; c) Accelerating the first shaft by means of the electric drive and discharging the fluid from an area of the at least one first friction surface pairing; wherein the drag torque of the first clutch is reduced by the accelerated discharge of the fluid.

Abstract: A caliper cover has a first mount and a second mount which are configured to engage with opposing sides of a brake caliper. A cover is engaged to the first and second mounts with a pair of struts extending between the mounts and the cover. Each mount is configured for engagement to the caliper without tools through a sliding to a preliminary position and then by imparting pressure to flex the body of the mount to expand and compress upon opposite sides of the brake caliper.

Abstract: A floating caliper brake assembly comprising: a caliper housing that is movable between a brake on position and a brake off position; a support bracket at least partially enclosed by the caliper housing and configured to extend around a rotor of a vehicle, the caliper housing being in communication with and movable relative to the support bracket, wherein the caliper housing has one or more fingers that extend radially downward and cover the support bracket so that when the brake assembly is viewed from an outboard side along an axis coaxial with, or substantially parallel to, an axis of rotation of the rotor the support bracket is obscured from view.

Abstract: The invention relates to a method and an apparatus for simultaneously ascertaining surface parallelism, axial perpendicularity and rotational surface runout of a rotational surface capable of rotating about a rotation axis relative to a reference surface. According to the invention, at least three distance sensors are provided which are stationary with respect to the reference surface and which have a measuring direction perpendicular to the reference surface and in the direction of the flat face of the rotational body. The distance sensors transmit distances ascertained during the rotation of the rotational body to an evaluation device, wherein an axial perpendicularity, a rotational surface runout of the rotational body and a surface parallelism can be ascertained from said distances. Prior to measuring the rotational surface runout, the angular deviation of the rotational surface is first ascertained.

Abstract: A brake caliper according to this disclosure is, for example, equipped with: a body having a pair of side walls arranged with a gap therebetween, a peripheral wall running between the pair of side walls, wherein the pair of side walls and the peripheral wall enclose the peripheral edge portion of a disk rotor from the outside of the disk rotor in the radial direction; brake pads positioned between the side walls and the disk rotor; pistons that are supported by the side walls and that press the brake pads toward the side surfaces of the disk rotor by means of applied hydraulic pressure; and a shaft that supports the brake pads and passes through an opening provided in the side walls. The opening includes a retaining part that retains the shaft in the circumferential direction at two contact points separated from each other along the edge of the opening.

Abstract: A guide pin assembly, comprising: (a) a sleeve; and (b) a guide pin comprising: (i) a head portion; and (ii) a shaft portion integrally formed with the head portion and extending through a hole of the sleeve, wherein an engaging portion of the shaft portion engages an internal surface of the sleeve, and the sleeve and the guide pin are substantially coaxial; and wherein the guide pin assembly is configured to be inserted in a borehole of a brake caliper.

Abstract: Provided is a friction member (such as a disc brake pad) having light weight by reducing weight of a back plate and having improved durability after repeated braking. Specific examples of the friction member include a friction member having a friction material disposed on one surface of the back plate comprising a material having a lower specific gravity than that of steel, wherein heat conductivity in a thickness direction of the friction material is 0.40 W/m·K or less.

Abstract: A radially biasing portion (19) of a pad spring (14) includes a first extending portion (19A) extending from a lower surface plate (18B) of a guide plate portion (18) outwardly in a disc axial direction, a curled portion (19B) folded on a distal end side of the first extending portion, and a second extending portion (19C) extending from the curled portion in a direction approaching a disc (1), the second extending portion with which an ear portion (11A) of a friction pad (10) comes into contact. A contact portion (20) extends from the second extending portion of the radially biasing portion (19) toward a middle of the friction pad in a disc rotational direction of the friction pad. The contact portion comes into surface contact with a contacted surface (11B) as a lateral surface of the friction pad (backing plate 11) in the disc rotational direction.

Abstract: A brake drum for a vehicle includes a friction ring and a drum body. The friction ring has grooves arranged on a radial outer surface along a circumference, and a coating formed on the grooves. The drum body is cast onto the radial outer surface of the friction ring so that the grooves are filled with a material of the drum body. The grooves include first grooves and second grooves. A first axial segment is formed at the friction ring in which the first grooves are introduced so that the first grooves are inclined relative to a first axial end of the friction ring. A second axial segment is formed at the friction ring in which the second grooves are introduced so that the second grooves are inclined in a direction which is opposite to that of the first axial segment. Each of the grooves have undercuts.

Abstract: A ventilated brake disc comprising a pair of annular members, each having a brake application surface and a back surface, a plurality of connection members that connects said pair of annular members and defines, together with said back surface, ventilation channels for passage of cooling air, and a plurality of longitudinal vortex generators (LVG) disposed along the passage of cooling air that generates vortices with a central axis in the downstream direction of the cooling air.

Abstract: The invention relates to a hydraulic brake system for a vehicle, comprising a cylinder (3) and a piston (4) movably arranged inside the cylinder (3), wherein the piston (4) has a closed end, an open end (6) and a piston wall surrounding a cavity (8) of the piston (4) between the closed end and the open end (5), the piston (4) being movable along a longitudinal axis (5) of the cylinder (3) by hydraulic pressure within the cavity (8) for pressing at least one brake pad (9) against a brake disc (2). An outer diameter of the piston (4) is smaller in a central section (13) between the open end (6) and the closed end than at the open end (6) and at the closed end so that, in the central section (13), a space (14) remains between the piston wall and an inner wall of the cylinder (3).

Abstract: A slack adjuster for use with a braking system which has an increased let-out length that enables the use of brake shoes having an increased thickness. The slack adjuster includes a dual spring and canister assembly, an external yoke trigger, or a combination of both the dual spring and canister assembly and the external yoke trigger. A method of retrofitting a truck-mounted brake system is provided, in which the slack adjuster is positioned within the brake system in order to increase the let-out length while maintaining a predetermined spatial envelope within the brake system. The slack adjuster has an increased let-out length enabling the use of thicker brake shoes without requiring modification of the interacting components of the truck mounted brake system since the overall size of the slack adjuster remains the same.

Abstract: A motor includes a housing containing a rotor and stator. A brake assembly is adapted to restrain rotation of the rotor. A brake controller includes a brake diagnostics system. At least one vibration sensor is located in the housing and provides vibration data to the brake diagnostics system in response to a brake operation cycle of the brake assembly. The vibration data is used by the brake diagnostics system to assess an operative condition of the brake assembly.

Abstract: An overload protection mechanism includes a first accommodating member, a second accommodating member, a force storage member, and an object. The second accommodating member is rotatably disposed on the first accommodating member. The force storage member is disposed between the first accommodating member and the second accommodating member. Opposite ends of the force storage member are connected to the first accommodating member and the second accommodating member. The object is connected to the second accommodating member. When an external force is exerted on the object and a torque generated by the external force is larger than a torque provided by the force storage member, the external force forces the object to drive the second accommodating member to rotate with respect to the first accommodating member.

Abstract: To provide a vibration control bush that ensures improved durability of a rubber elastic body. An inner pipe film portion of the vibration control has an inclined surface whose inclination angle ? with respect to an axis O direction is set to one degree or more and less than three degrees, and the inner pipe film portion has an end portion in the axis O direction whose thickness dimension is set to a quarter or less of a dimension in an axis O perpendicular direction from an outer peripheral surface of an inner pipe to an apex of the protruding portion. This ensures reducing a rubber elastic body to deform so as to bend (close contact) between the inner pipe film portion and the outer pipe film portion when a load in a wrenching direction is input. Accordingly, a durability of the rubber elastic body can be improved.

Abstract: The present invention includes a torsion spring including a middle plate having a first attachment point displaced from the geometric center of the middle plate; a first elastomeric element secured to a first side of the middle plate and having an opening coincident with the first attachment point of the middle plate; a second elastomeric element secured to a second side of the middle plate and having an opening coincident with the first attachment point of the middle plate; a first outer plate secured to the first elastomeric element and having an opening coincident with the first attachment point of the middle plate; and a second outer plate secured to the second elastomeric element, having an opening coincident with the attachment point of the middle plate.

Abstract: A damping valve having a damping valve body with at least one flow channel for damping medium. A valve rod is arranged in the flow channel. The valve rod cooperates with a valve disk and a valve seat surface. The valve rod carries a further valve disk that cooperates with a second valve seat surface. The first valve disk together with the first valve seat surface forms a first partial valve having a first permanently open pilot orifice cross section, and the second valve disk together with the second valve seat surface forms a second partial valve having a second pilot orifice cross section, and a shuttle valve is formed which opens one partial valve and closes the other partial valve depending on the flow direction.

Abstract: An air spring assembly having pressure relief capability, where the air spring assembly includes a single air volume, or a multi-chamber air volume. When the air spring assembly is operating at a stiffer spring rate in combination with a setting to increase ground clearance, during certain road events, the air spring assembly is compressed, and the pressure in the air spring assembly increases. In order to not exceed the safe mechanical limits of the air spring assembly, the pressure is limited to a maximum value when full compression is achieved. The air spring assembly includes at least one valve, which is opened based on a “cracking pressure,” which is determined based on the mechanical limits of the air spring assembly. This facilitates the operation of the air spring assembly at settings to increase ground clearance of the vehicle, while allowing for pressure relief when the mechanical limit is reached.

Abstract: Generally described, aspects of the disclosed subject matter are directed to electronically controlled dampers having shimmed pistons. In accordance with aspects of the present disclosure, the dampers generally include a shaft having a piston with compression and rebound valves extending therethrough. For further damper tuning and adjustment, a fluid bypass assembly permits damping fluid to bypass the piston during operation. The fluid bypass assembly may include a metering pin for manual adjustment of the fluid bypass, and a control valve for electronic adjustment of the fluid bypass. In this regard, the control valve may be controlled automatically, manually, or a combination thereof.

Abstract: A shock absorber with a hydrostopper is provided. The hydrostopper includes a stopper piston that is relatively displaceable along a rod portion of a piston and partitions one cylinder chamber into an upper chamber and a lower chamber, and a compression coil spring that biases the stopper piston against a stopper disc fixed to the rod portion in the lower chamber. The stopper piston has an orifice passage connecting the upper and lower chambers. The hydrostopper includes an elastic disk functioning as an elastically deformable member that increases an amount of elastic deformation to increase an amount of reduction of an effective passage cross-sectional area of the orifice passage as a differential pressure between pressures in the upper and lower chambers is larger when the pressure in the upper chamber is higher than the pressure in the lower chamber.

Abstract: An impact absorbing apparatus includes a first chamber including a first chamber wall and a first valve disposed in the first chamber wall. The impact absorbing apparatus includes a second chamber including a second chamber wall and a second valve disposed in the second chamber wall. A plurality of connecting pillars connects the first chamber to the second chamber. The plurality of connecting pillars is configured to shift position in response to a first impact. The first valve is configured to pass air in and out of the first chamber. The second valve is configured to pass air in and out of the second chamber.

Abstract: A power transmission device is disclosed. The device includes a first rotating member, a second rotating member rotating relative to the first rotating member, and a torque transmission portion. The torque transmission portion is provided on the first rotating member and transmits torque from one of the first and second rotating members to the other via a hydraulic fluid. The torque transmission portion includes an oil chamber portion filled with the hydraulic fluid, a first piston pressing the second rotating member, a second piston retaining the hydraulic fluid in the oil chamber portion with the first piston, and an elastic portion elastically holding the second piston. The first piston receives pressure of the hydraulic fluid on a first pressure receiving area. The second piston receives pressure of the hydraulic fluid on a second pressure receiving area. The first pressure receiving area is smaller than the second pressure receiving area.

Abstract: A vibration damping device equipped with a resonator mechanism comprising at least one resonator, the at least one resonator having a first beater extending from an embedded end to a free beating end. The resonator consists of an elastically deformable base equipped with a first branch and a second branch connected by a central section, the embedded end being embedded at the first branch, the first branch extending from a first end to a second end each rigidly fastened to a mount, the second branch extending from a first end section to a second end section each rigidly fastened to a vibration source.

Abstract: A driving belt that can limit damages on a hoop and elements. A boss projecting from a front surface of the element is inserted into a hole formed on a rear surface of the fellow adjacent element to form an element array, and the element array is fastened by a hoop. A radially inner clearance between a leading edge of the boss of the element and the hole of the fellow adjacent element in the radial direction is set wider than a radially outer clearance between the leading edge of the boss of the element and the hole of the fellow adjacent element in the radial direction, within a straight region of the driving belt between the pulleys.

Abstract: The invention relates to a method for producing a belt- or band-shaped component made of elastomer material, which is driven to run around under tensile stress and which has an electronic circuit or electronic device installed in the component, the component having tension members or cords which are arranged in the longitudinal direction, wherein, during the fabrication and before the vulcanization of the component blank, planar intermediate plies or strips made of material which cannot be crosslinked by vulcanization are inserted into the blank structure in subregions of the blank, wherein, after the fabrication, the blank is completely vulcanized to form the component and, where appropriate, cut or trimmed, and wherein the intermediate plies or strips are then removed from the component through correspondingly incorporated or method-intrinsically formed openings, and an electronic circuit or electronic device is introduced into the thus resulting planar empty space or interspace in the component.

Abstract: A rope swinging device includes a strap attached to an optional handgrip, and a clamp attached to the strap. The clamp may be attached to a rope that is swung by a user.

Abstract: Various embodiments include a fastening unit for fastening a tendon to a system. The fastening unit comprises: a head with a first opening; a shaft with a second opening and an external thread; and a channel extending from the first opening along the head to the second opening at least partly along the shaft. The external thread and the channel in each case accommodate the tendon.

Abstract: A work vehicle includes an actuator, a metering element, and a powertrain configured to transmit power from the actuator to the metering element to drive the metering element in rotation about a first axis to meter a commodity at a predetermined rate. The powertrain includes an actuator output member supported for rotation about a second axis. The powertrain includes a metering input member that is fixed for rotation with the metering element about the first axis. The actuator output member is engaged with the metering input member for power transmission from the actuator output member to the metering input member. The first axis is transverse to the second axis.

Abstract: A reduction gear and an electromechanical device are provided. The reduction gear has a motor and a speed reduction assembly. The motor has a first rotary shaft and a second rotary shaft which rotate around a central axis, a second rotor, a first rotor, a stator and a first motor housing; the speed reduction assembly has: a first gear, a second gear, a third gear, and an output shaft driven by the third gear; and the motor further has: a first bearing and a second bearing, the first bearing and the second bearing are located on two sides of the stator in an axial direction, and the first gear is located on one side, away from the stator, of the second rotor. According to the embodiments, the reduction gear which is small in size and high in drive capability may be obtained.

Abstract: A two-stage cycloid speed reducer comprises two rotating disc assemblies. Each rotating disc assembly comprises two cycloid discs. In other words, the cycloid speed reducer has four cycloid discs to be in contact with the corresponding rollers. Consequently, the load withstood by each cycloid disc is reduced. Since the cycloid speed reducer has stronger structural strength, the cycloid speed reducer can be applied to the high-load circumstance. Moreover, an eccentric assembly of the eccentric device includes a plurality of eccentric cylinders. The eccentric cylinders are disposed within the axle holes of the corresponding cycloid discs. Due to the eccentric cylinders, the eccentric direction of two cycloid discs is opposite to the eccentric direction of the other two cycloid discs. Consequently, it is not necessary to install an additional weight compensation device in the cycloid speed reducer to compensate the dynamic equilibrium. Moreover, the cycloid speed reducer can be assembled easily.