Abstract: A longitudinal channel with increased holding strength, configured for use as an anchoring element for an anchor used in supporting objects on a substrate and a method for the production thereof and an anchor. The channel has a generally U-shaped axial cross section in at least a portion thereof with, the U-shaped cross section being comprised of longitudinal side walls and a longitudinal base connection between the side walls. The side walls have free edges configured for holding contact with the substrate. A portion of the free edges of the channel are covered with a planar continuous surface material which is co-extensive with non-covered free edges whereby the planar continuous surface material and the free edges provide a planar holding surface with greater surface area than that of the free edges alone for the increased holding strength.

Abstract: An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught.

Abstract: A multi sectioned nut is operable to attach to a threaded fastener. The multi sectioned nut includes a plurality of multi sectioned threaded nut sections and a turn-lock formed on at least one end of the plurality of threaded nut sections. A cage is detachably coupled to the plurality of nut sections operable to spring open on a side opposite the cage to allow the threaded fastener to pass through. The turn-lock is inserted into a strut slot and rotated to removably attach to the strut slot. According to one embodiment, the multi sectioned nut may include at least two sections.

Abstract: Methods and systems are provided for a thrust bearing assembly for a crankcase of an engine. In one example, a thrust bearing may comprise a semicircular curved plate mounted on a main bearing. At least two holes may be asymmetrically positioned on the surface of the thrust bearing to allow attachment with a flywheel housing in a unique manner.

Abstract: A telescopic side arm for a refuse vehicle has an inner and outer boom. A mounting assembly secures the outer boom with a refuse vehicle. A plurality of bearing pads is positioned between the inner and outer booms to provide smooth movement between the inner and outer booms. A plurality of shims is associated with the bearing pads to assure a tight fit between the inner and outer booms.

Abstract: An oil-impregnated sintered bearing in which a Fe—Cu-based sintered body is impregnated with a lubricant and which has a bearing hole that is configured to support a rotary shaft inserted therethrough, in which an inner circumferential surface of the bearing hole includes at least a first region including a central portion in a shaft direction and a second region forming a portion from a first end portion of the first region to a first opening of the bearing hole, and, in a friction surface of the second region, an area of a Fe phase is larger and an area of a Cu phase formed of Cu powder including Cu-based flat raw material powder is smaller than those in a friction surface of the first region.

Abstract: Methods for producing an angular contact roller bearing with unilaterally delimiting rims are disclosed, as well as devices for assembling the angular contact roller bearing.

Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and an annular cage. The annular cage includes a small-diameter annular portion, a large-diameter annular portion, and a plurality of cage bars that couple the small-diameter annular portion and the large-diameter annular portion together. The cage bar has a first facing surface that faces the outer peripheral surface of the tapered roller that is housed. The first facing surface includes a large-diameter-side facing surface, a small-diameter-side facing surface arranged farther away from the outer peripheral surface of the tapered roller than the large-diameter-side facing surface, and an intermediate facing surface inclined gradually away from the outer peripheral surface of the tapered roller with increasing distance from the large-diameter-side facing surface to the small-diameter-side facing surface.

Abstract: A slide rail includes a first rail, a second rail, a third rail, a first resilient member, a second resilient member, and a locking member. When the first rail is pulled out, the first resilient member drives the second resilient member to move along with the first resilient member to pull the second rail. When a receiving slot is aligned with a through slot, a spring piece and the locking member fall into the through slot, the spring piece separates from the first resilient member, the locking member latches onto a first step surface of the through slot to limit movement of the second rail, and the first rail continues to move.

Abstract: A rolling bearing has an outer diameter surface of the outer ring which is a fitting surface with a housing and the inner diameter surface of the inner ring, which is a fitting surface with a shaft. The outer diameter surface of the outer ring or the inner diameter surface of the inner ring is coated with a bonded film containing an organic binder, a solid lubricant powder such as molybdenum disulfide powder, and a friction/wear modifier such as antimony oxide powder. According to the rolling bearing, a creep resistance is kept excellent without causing increase in cost and size and being deformed and softened.

Abstract: Provided is a bearing structure including: a shaft; a first opposed surface, which is formed on the shaft or a member mounted to the shaft; a first bearing portion, which is opposed to the first opposed surface from one end side of the shaft; a second opposed surface, which is formed on the shaft or the member mounted to the shaft, and is positioned on the one end side of the shaft with respect to the first opposed surface and the first bearing portion; and a second bearing portion, which is opposed to the second opposed surface from the one end side of the shaft.

Abstract: A sealing structure with an annular pocket and a sealing device includes an annular pocket and a sealing device. The pocket is provided in a slinger, and the sealing device is attached to a housing of a differential device. The slinger is arranged on an output shaft of the differential device. A recessed part of the pocket is defined by an inner peripheral tubular portion, an outer peripheral tubular portion and a bottom portion of the slinger. The outer peripheral surface of the pocket is formed in the outer peripheral tubular portion of the slinger. The outer peripheral surface of the pocket increases in diameter toward the outside in an axis direction. A side lip of the sealing device extends in the outward direction, and an annular gap is formed between the side lip and the pocket.

Abstract: A coupling for attaching a pair of longitudinally aligned rotatable shafts. It has a pair of circular hubs having a bore through a central axis. A shaft is fixed within each bore. A circular power ring is positioned between the hubs. Either the hubs or the power ring have circular apertures through and spaced around each hub and a hollow bushing positioned in each circular aperture. The other of the hubs or the power ring has mating coupling pins extending outwardly mounted within a corresponding one of the hollow bushings. Preferably an end of the coupling pins mating with the bushings have a generally truncated spherical, bulbous configuration with an outside diameter about 5% to about 25% greater than an outside diameter of its opposite end. Preferably elastically deformable, solid cylindrical spacers are attached to, and projecting between each circular hub and the circular power ring.

Abstract: A clutch device that includes a first and a second input side, a first and a second output side, wherein the input sides and the output sides can be rotated about a common rotation axis. The clutch device further includes a first clutch between the first input side and the first output side, a second clutch between the first input side and the second output side, a third clutch between the first input side and the second input side, and an actuator device for the third clutch when the second input side rotates faster than the first input side.

Abstract: An automatic transmission is provided, which includes a friction engaging element. The friction engaging element includes a plurality of friction plates disposed inside a transmission case, a piston configured to cause the plurality of friction plates to be engaged with each other, and a spring configured to bias the piston. The spring includes a first spring and a second spring with a longer free length than the first spring, and the first spring and the second spring are aligned in circumferential directions of the transmission case.

Abstract: A three-mode clutch, including: an inner ring; an outer ring including a pocket; a cage radially disposed between the inner and outer rings, rotatable with respect to the outer ring, and including a ramp sloping radially inwardly; and a pawl including a portion disposed in the pocket. In a locked mode of the clutch, the ramp is in contact with the pawl and the inner and outer rings are non-rotatably connected. In a one-way mode of the clutch, the cage is in contact with the pawl and relative rotation of the inner ring with respect to the outer ring is enabled only in a first rotational direction. In a freewheel mode of the clutch, the ramp is in contact with the pawl and the inner ring is rotatable with respect to the outer ring in the first rotational direction and in a second rotational direction opposite the first rotational direction.

Abstract: A clutch control device and a clutch control method are capable of preventing progress of wear and damage of a pneumatic clutch actuator. The clutch control device that controls the operation of a pneumatic clutch actuator to disconnect a clutch is characterized by setting a stroke amount of a piston corresponding to a disconnection position of the clutch as a final target stroke amount, setting other stroke amounts different from the final target stroke amount as intermediate target stroke amounts, and controlling the operation of the piston in a stepwise manner such that an actual stroke amount of the piston is matched with the intermediate target stroke amounts and is thereafter matched with the final target stroke amount, thereby disconnecting the clutch.

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: Brake disks with integrated heat sink are provided. Brake disk includes a fiber-reinforced composite material and an encapsulated heat sink material impregnated into the fiber-reinforced composite material. The encapsulated heat sink material comprises a heat sink material encapsulated within a silicon-containing encapsulation layer. Methods for manufacturing the brake disk with integrated heat sink and methods for producing the encapsulated heat sink material are also provided.

Abstract: Disclosed herein is an electronic disc brake. The electronic disc brake according to one embodiment of the present disclosure includes a disc configured to be rotated with a wheel, a caliper housing configured to operate pad plates installed at both sides of the disc, and an actuator including a piston provided in the caliper housing and configured to press the pad plates to bring the pad plates into contact with the disc, a spindle rotatably installed in the caliper housing to move the piston forward and backward, a motor configured to rotate the spindle, and a speed reduction apparatus configured to transmit a rotational force of the motor to the spindle, wherein the speed reduction apparatus includes a power connecting unit connected to the motor, a bracket provide above the motor and configured to support the power connecting unit, and a speed reduction gear unit configured to sequentially connect the power connecting unit and the spindle.

Abstract: A brake pad of a disc brake, in particular for a disc brake for a utility vehicle, has a backing plate, which bears a friction lining and to which an element that can be moved in relation to the backing plate is connected, and an electrical wear sensor designed in such a way that the wear sensor is arranged on the element that can be moved in relation to the backing plate so that the wear sensor itself can be moved in relation to the backing plate.

Abstract: To provide a friction material used for a brake shoe of a drum brake for a passenger car, which continuously reduces generation of low frequency noise and provides excellent braking effectiveness and wear resistance and is manufactured by forming a friction material composition which contains no cleavage substance, 8-12 weight % of a phenolic thermosetting resin as the binder, 9-18 weight % of cashew dust as the organic friction modifier, 6-12 weight % of a rubber particle, where the total amount of the cashew dust and rubber particle is 18-25 weight %, and 4-10 weight % of the aluminum particle as the inorganic friction modifier, all relative to the total amount of the friction material composition. The friction material contains the phenolic thermosetting resin consists of a straight novolak phenolic resin and the unvulcanized nitrile rubber (NBR) particle.

Abstract: Provided is a vibration control bush configured to improve durability of a rubber elastic body. The vibration control bush includes: a shaft member that includes a spherical convex portion; a tubular member that is arranged on a radially outer side of the shaft member; and a rubber elastic body that joins the tubular member and the shaft member. The rubber elastic body is joined to a first portion and a second portion of the tubular member. The first portion is positioned on the radially outer side of the convex portion, and the diameter of the inner circumferential face gradually decreases axially outward from the center. The second portion is positioned on the axially outer side with respect to the first portion, and the diameter of the inner circumferential face gradually increases axially outward.

Abstract: A disc spring assembly comprises a disc spring support having a radially outer surface and a plurality of annular disc springs arranged in a stack over the radially outer surface of the disc spring support. Each annular disc spring comprises a substantially frusto-conical or dished shape and has a radially inner edge region mounted on the radially outer surface of the disc spring support and a radially outer edge region. At least one separator disc is arranged between two axially adjacent disc springs and has a radially outer portion having opposed axially facing surfaces for receiving the radially outer edge regions of the two axially adjacent disc springs. The radially outer portion of the separator disc have at least one drainage passage for allowing drainage of a liquid from a cavity between the disc springs.

Abstract: A damping valve includes a valve body has at least one through-flow channel for each flow direction of a damping medium through the valve body. Each through-flow channel connects an inlet to an outlet. a valve disk covers the through-flow channels at the outlet opening the valve disk has a first volume flow of the damping medium through the valve body, at least one pre-orifice in the valve disk and at least one pre-orifice throttle arrangement is arranged at least indirectly adjoining the valve disk and adapted to at least partially cover or open the pre-orifice depending on the flow direction of a damping medium. The pre-orifice throttle arrangement includes multiple structural component parts arranged coaxial to one another, at least two of the structural component parts are inseparably connected to one another.

Abstract: A method for servicing a dual-stage, separated gas/fluid shock strut may comprise measuring a servicing temperature, charging a secondary gas chamber with compressed gas, wherein a secondary chamber pressure corresponds to the servicing temperature, pumping oil into the shock strut, and charging a primary gas chamber with compressed gas.

Abstract: Shock absorber comprising a tubular base, a piston, a stem connected to the piston, and a plurality of fluid paths for connecting a working chamber and an accumulation chamber on opposite sides of the piston, one of which provides for a ring-shaped obstructing member arranged about the piston and able to slide along an axial length of the piston. The obstructing member comprises a bush of plastic material, which has a flexible lip portion extending from a rear end of the bush and having a radially outer surface tapered towards the rear end of the bush, the lip portion being adapted to seal against a radially inner surface of the base when the obstructing member is in a closed configuration. A support ring member is adapted to radially engage the lip portion of the bush from within, and to push it against the radially inner surface of the base.

Abstract: An adjustment wheel arrangement for a shock absorber with a first adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment tube of a piston rod of the shock absorber, and a second adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment rod extending through the adjustment tube. The first adjustment wheel and the second adjustment wheel can be twisted relative to each other by means of a push-twist connection but are or can be connected by form-fit to each other in the axial direction. The push-twist connection is configured in the manner of a key-lock, such that the first adjustment wheel and the second adjustment wheel can be connected to or separated from each other only in a single relative orientation.

Abstract: A damper device provided with a single cylinder type erecting structure having a free piston includes: a partition wall fixed to the cylinder between a piston and the free piston and partitioning inside of the cylinder into spaces in an axial direction of the cylinder; a partition wall orifice composed of an orifice piercing through the partition wall; a piston orifice composed of an orifice piercing through the piston; a partition wall-side flow variable structure configured to regulate a flow rate of a viscous fluid passing through the partition wall orifice; a piston-side flow variable structure configured to regulate a flow rate of the viscous fluid passing through the piston orifice; and a control unit configured to control the partition wall-side flow variable structure and the piston-side flow variable structure.

Abstract: A powertrain, such as a vehicular electric powertrain, includes a cycloidal speed reducer configured to reduce a speed of an output of a traction motor. The cycloidal speed reducer includes an input member configured to couple with the output of the traction motor. A cycloidal disc has a main body made of a first material and defining a plurality of circumferentially-arranged holes extending through the body. The cycloidal disc has a plurality of inserts each extending through one of the holes. The inserts are made of a second material. A plurality of circumferentially-arranged pins are each disposed in one of the holes and contacting one of the inserts. The inserts provide reinforcement in contact areas between the disc and the pins.

Abstract: Disclosed is a multi-crankshaft cycloidal pin wheel reducer. The gland and the wheel base are fixedly connected by a connecting shaft through screws and are rotated by the main bearing, coaxially with the pin gear shell, with intermediate crankshaft and pin gear shell and roller pin constitutes a cycloidal pin wheel together with the first and second cycloidal to form a rotating pair connection respectively. The plurality of planetary bearings are provided on inner rings of the gland and the wheel base, with the planetary crankshafts being mounted between each pair of the planetary bearings. The planetary crankshafts are coupled with the first cycloidal wheel and the second cycloidal wheel, respectively through the eccentric bearing, to form a rotating pair connection, so as to form a multi-crankshaft force transmission structure. It has the advantages of smooth operation, low noise, high efficiency, and small angular transmission error.

Abstract: This application discloses a transmission having a plurality of transmission sections, wherein each transmission section comprises: a driven primary shaft (1); at least one secondary shaft (13), which is arranged to rotate independently, in particular axis-parallel, with respect to the primary shaft (1); and a clutch arrangement (4, 5), which is formed to selectively couple the primary shaft (1) directly with a driven shaft or to couple the secondary shaft (13) or one of the secondary shafts between the primary shaft (1) and the driven shaft, wherein the driven shaft is a primary shaft (1) of a further transmission section or an output shaft of the transmission, wherein the coupled secondary shaft (13) comprises a predetermined transmission ratio with respect to the primary shaft (1), wherein when multiple secondary shafts are provided, respective coupled secondary shafts comprise different transmission ratios with respect to the primary shaft (1).

Abstract: The present invention provides a variable-speed speed-up gear including an electric driving device (50) that generates a rotational driving force, and a planetary gear transmission device (10) that changes the speed of the rotational driving force generated by the electric driving device (50) and transmit the changed rotation driving force to a driving target, wherein a sun gear shaft (12) forms an output shaft (Ao) connected to the driving target, an internal gear carrier shaft (37) configures a constant-speed input shaft (Ac), and a planetary gear carrier shaft (27) configures a variable-speed input shaft (Av), the electric driving device (50) includes a constant-speed motor (51) having a constant-speed rotor (52) which is configured to rotate a constant-speed input shaft of the transmission device, and a variable-speed motor (71) having a variable-speed rotor (72) which is configured to rotate the variable-speed input shaft of the transmission device, the variable-speed rotor (72) and the planetary gear ca

Abstract: A control apparatus for a drive-force transmitting apparatus that defines a first drive-force transmitting path that is to be established by engagements of a first frictional engagement device and a dog clutch and a second drive-force transmitting path in which a lower gear ratio is provided than in the first drive-force transmitting path. In a second running mode with the second drive-force transmitting path being established, the control apparatus places the dog clutch in a released state when a vehicle running speed is higher than a first speed value, and places the dog clutch in an engaged state when the running speed is not higher than the first speed value. Further, in the second running mode, the control apparatus inhibits the dog clutch from being switched to the released state when an accumulated heat quantity in a synchromesh mechanism of the dog clutch is larger than a first quantity value.

Abstract: An accessory drive system for an engine 1 includes: a drive shaft (a crankshaft 21); a driven shaft (an oil pump drive shaft 31); an endless transmission member (a drive chain 33); a first tensioner disposed on a slack side of the endless transmission member (a first hydraulic tensioner 41); and a second tensioner disposed on a tight side of the endless transmission member (a second hydraulic tensioner 43). The second tensioner has a damping function to damp pushing force applied to the second tensioner by the endless transmission member in a direction opposite to a biasing direction.

Abstract: A belt tensioner, comprising a first and second tensioning arm supported on a generator housing, a first and second tensioning roller attached to the first and second tensioning arms and configured to apply a pre-tensioning force to an auxiliary unit belt drive, and a bow spring clamped between the first and second tensioning arms in axial overlap with the tensioning rollers and configured to produce the pre-tensioning force.

Abstract: An object of the present invention is to provide a continuously variable transmission in which a magnitude relationship between a piston area of a primary pulley and a piston area of a secondary pulley is specified. As means for achieving the object, a continuously variable transmission includes: an electric oil pump disposed in an oil path between a piston oil chamber of a primary pulley and a piston oil chamber of a secondary pulley; and a controlling portion configured to control the entry and exit of oil in the piston oil chamber of the primary pulley by the electric oil pump. A piston area of the primary pulley in the continuously variable transmission is smaller than a piston area of the secondary pulley.

Abstract: A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a gear shift regulation device suitable to operate on special rollers (18) through an adjustable axial action independently of the number of engine revolutions. The device influences the centrifugal movement of the rollers (18) and thus influences the gear shift.

Abstract: Provided is a ball screw device (31), including: a ball screw shaft (33); and a ball screw nut (32) which is rotatably fitted to an outer periphery of the ball screw shaft (33) through intermediation of a plurality of balls (34), wherein the ball screw shaft (33) performs a linear motion in an axial direction along with rotation of the ball screw nut (32), wherein the ball screw shaft (33) has a hollow shape having a hole portion (33b) extending in the axial direction, and wherein a stroke detection sensor (55) configured to detect an amount of displacement of the ball screw shaft (33) in the axial direction is arranged in the hole portion (33b).

Abstract: In some examples, a ball nut includes a first end and an outer cylindrical surface having a first diameter. A pulley may be mounted on the first end of the ball nut. The pulley may include an inner cylindrical surface having a second diameter larger than the first diameter of the ball nut and sized to engage with the outer cylindrical surface in a press fit. Furthermore, a circumferential groove may be formed in a portion of the first end of the ball nut extending beyond the pulley when the pulley is mounted on the first end of the ball nut. A retaining ring is disposed in the circumferential groove to prevent removal of the pulley from the first end of the ball nut. Furthermore, a portion of the ball nut may engage with a portion the pulley to prevent relative rotation between the pulley and the ball nut.

Abstract: A transmission includes a countershaft, an input shaft and a clutch that couples the input shaft to the countershaft, a main transmission assembly having a main shaft and a main transmission clutch, the main shaft coupled to the countershaft via the main transmission clutch, and a range gear assembly. The transmission includes a power take-off shaft coupled to an axial end of the countershaft and colinear therewith, wherein the power take-off shaft and the countershaft are rotationally coupled to one another and axially decoupled from one another.

Abstract: A method of making a turbine assembly for a hydrokinetic torque converter includes providing a first turbine component including a polymeric first turbine shell element and first turbine blades connected to the first turbine shell element, providing a second turbine component including a second turbine shell element and second turbine blades connected to the second turbine shell element, and connecting the first turbine shell element to the second turbine shell element to collectively provide a turbine shell of the turbine assembly and fixedly secure the first and second turbine components to one another in a coaxial relationship about the rotational axis. The connecting involves welding and/or adhesive bonding the first turbine shell element to the second turbine shell element. A turbine assembly, a hydrokinetic torque converter, and a method of making a hydrokinetic torque converter are also provided.

Abstract: A powertrain may include drive gears provided in an input shaft; an output shaft configured such that a differential is connected thereto; a first driven gear and a second driven gear rotatably provided in the output shaft to be engaged with the drive gears to form respective gear stages; a first clutch and a second clutch; two driveshafts provided to output power in opposed directions from the differential; and a third clutch configured to change a connection relationship among a selected driveshaft of the two driveshafts, the second driven gear, and the output shaft by sliding along an axial direction of the input shaft while being connected to the output shaft via the second clutch.

Abstract: A strain wave gearing has a wave generator for generating a wave motion that repeatedly flexes each part in the circumferential direction of an externally toothed gear in the radial direction. The wave generator is provided with a plurality of wave-generating members arranged at positions at a prescribed angular interval along the circumferential direction of the externally toothed gear. Each of the wave-generating members is provided with an outer circumferential cam surface, rotates centered on a rotation center line that is parallel to the device center axis line, and repeatedly flexes each part of the externally toothed gear in the radial direction with a prescribed amplitude. A strain wave gearing, which is suitable for forming a large device hollow part, can be obtained.

Abstract: A torque transmitting gear includes a steel toothed annular flange having gear teeth defined on a periphery of the steel toothed annular flange. A steel hub is coaxially aligned with the steel toothed annular flange. A web is formed from a web material having a density less than or equal to 3.0 grams per cubic centimeter. The web is fixedly attached to the toothed annular flange and to the hub for rotation together with the toothed annular flange and the hub. The gear is to operatively transmit a torque of at least 500 Newton Meters for at least 6 million revolutions of the gear. An overall mass of the gear is less than two-thirds of an overall mass of a same-sized all steel gear having a solid steel web with a solid steel web thickness at least one-third of a face width of the toothed annular flange.

Abstract: A high torque sprocket includes a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing. A continuous toothed structure is disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section. The body is formed of a castable polymer material. In some cases, one or two optional flanges are disposed on side(s) of the body immediately adjacent the continuous toothed structure, in some aspects, a textile reinforcement may be embedded in a surface of the flange(s) immediately adjacent the continuous toothed structure. In some aspects, ultra-high molecular weight polyethylene (UHMWPE) is incorporated into the castable polymer material mixture in an amount suitable to provide increased durability to the sprocket.

Abstract: A worm drive includes a rotatably mounted worm shaft, and a device for compensating an unwanted axial backlash of the worm shaft. The device for compensating the unwanted axial backlash of the worm shaft includes two pressure bodies between which the worm shaft is clamped in the axial direction by a diaphragm spring device. The diaphragm spring is assigned to one of the pressure bodies.

Abstract: A bicycle sprocket comprises a sprocket body and a plurality of sprocket teeth. The plurality of sprocket teeth includes at least one first axially recessed upshifting-facilitation tooth with respect to a rotational center axis. The plurality of sprocket teeth includes at least one first axially recessed downshifting-facilitation tooth with respect to the rotational center axis. The at least one first axially recessed downshifting-facilitation tooth is adjacent to the at least one first axially recessed upshifting-facilitation tooth without another tooth therebetween in a circumferential direction with respect to the rotational center axis. The at least one first axially recessed upshifting-facilitation tooth and the at least one first axially recessed downshifting-facilitation tooth provide a first continuous recess extending in the circumferential direction.

Abstract: A cone-pulley flexible transmission is disclosed that comprises a first shaft having a first cone-pulley pair and a second shaft having a second cone-pulley pair. The first and second cone-pulley pairs each have a first cone pulley movable in an axial direction and a second cone pulley stationary in the axial direction. A flexible transmission means may be arranged between the first and second cone-pulley pairs for torque transmission. The first and second shafts may be rotatably supported by a bearing. The bearing of the first shaft or the second shaft may be a fixed bearing. The fixed bearing may include an inner bearing ring arranged on an outer circumferential surface of a corresponding shaft and an outer bearing ring fastened to a transmission housing by a sleeve extending through a wall of the transmission housing.

Abstract: A hydraulic transaxle includes a transaxle casing including an upper transaxle housing and a lower casing, hydrostatic transmission (“HST”), and an axle. The HST has a hydraulic pump and a hydraulic motor that are fluidly connected to each other. The hydraulic motor has a motor shaft that is drivingly connected to the axle through a reduction gear train that is disposed between the hydraulic pump and the axle. Reduction gear train has a gear shaft supported by the upper transaxle housing via a ball bearing. At least a part of the upper transaxle housing is formed by a gear top cover made of metal and covering the reduction gear train. Ball bearing is supported by the upper transaxle housing and the gear top cover.