An isolator decoupler comprising a shaft (1) a pulley (2) journalled to the shaft a torsion spring (10) engaged between the pulley and a carrier (9) the torsion spring loaded in an unwinding direction a wrap spring (11) engaged between the carrier and the shaft the wrap spring comprising a cylindrical inner portion ...

A two speed belt drive system comprising a crankshaft module (200) comprising a first pulley (213) engaging a first belt (10) and a second pulley (206) engaging a second belt (20) a clutch module (100) engaging the first belt and the second belt the second belt (20) engaged to an engine accessory the crankshaft modu...

A tensioner comprising a base, a shaft connected to the base , an eccentric adjuster coaxially engaged with the shaft, an arm pivotally engaged with the shaft , a pulley journalled to the arm , a torsion spring engaged between the arm and the base, the arm comprising a first receiving portion and a second receiving ...

An orbital tensioner comprising a base a carrier engaged with the base and revolvable about an axis A A a first pulley journalled to the carrier a pivot arm mounted to the carrier the pivot arm pivotable about an axis B B a second pulley journalled to the pivot arm the axis B B is orbitally movable about axis A A a ...

A belt transmission comprising a housing a first belt trained between a first shaft and a first intermediate shaft a second belt trained between the first intermediate shaft and a second intermediate shaft a third belt trained between the second intermediate shaft and a second shaft a first tensioner and second tens...

A belt having an elastomeric body a tensile cord embedded therein and a tooth fabric having an increased value of Fabric Tensile Toughness as defined herein. The Fabric Tensile Toughness may be derived from properties of the yarns making up the fabric such as yarn linear density yarn ultimate elongation yarn tensile...

A CVT drive system comprising a moveable sheave axially moveable along a first shaft and having a radially extending surface a fixed sheave fixed to the first shaft the fixed sheave cooperatively disposed with the moveable sheave to engage a belt therebetween the first shaft engagable with an engine output a bac...

A vehicle steering system transmission comprising a driver connected to a driver shaft (4) the driver shaft (4) connected to an output shaft (10) by a flexible link (6 7 8) a first sensor (1) sensing the driver shaft (4) a control unit (500) receiving a signal from the first sensor (1) and the control unit (500) tra...

An isolating pulley comprising a hub a pulley journalled to the hub a spring carrier journalled to the hub a torsion spring engaged between the pulley and the spring carrier a frictionmember engaged between the spring carrier and the hub the frictionmember comprising a first multiple ribbed surface to engage the spr...

A pulley and drive belt system comprising a drive belt the drive belt comprising a plurality of longitudinally spaced lugs each having an alignment groove dividing the lug into first and second lug segments the alignment groove having an alignment groove depth and at least one pulley configured to engage a surface o...

A transportable test system having a control room module , a first IMR test module , and a second IMR test module. The test modules may have fasteners that permit assembly into a unitary package of predetermined overall dimension (i.e. size and shape) such as a standard shipping container dimension. A first IMR test...

A protective blanket (10) which can be wrapped loosely around a hose (52), fastening the longitudinal edges (12a; 12b) together to form a protective cylindrical tube , and/or joined end- to- end with one or more additional blankets to extend the protective tube to a desired total length. The blanket thus provides im...

A quick connect coupling (2) includes a male coupling (4) and a female coupling (6). A stop (16) may be associated with the male coupling (4) and configured to prevent the male coupling (4) from being inserted into a port of the female coupling (6)beyond a predetermined depth. The stop (16) may be axially slidable b...

A tensioner comprising a first pivot arm having a first pulley journalled thereto and engagable with a mounting surface through a first pivot axis a second pivot arm having a second pulley journalled thereto the second pivot arm pivotally engaged to the first pivot arm through a second pivot axis the second pivot ax...

A tensioner comprising a base a first pivot arm pivotally engaged to the base a first pulley journalled to the first pivot arm a second pivot arm pivotally engaged to the base a second pulley journalled to the second pivot arm a flexible tensile member having a toothed engagement with the first pivot arm and a ...

Disclosed is a tension adjustment device (100) for transmission equipment. The tension adjustment device (100) comprises: a swing arm (10) the swing arm (10) being rotatably fixed via a fixing assembly (60); and a tensioning assembly (20) the tensioning assembly (20) being rotatably fixed to the swing arm (10) where...

An isolating decoupler comprising a shaft a pulley journalled to the shaft and having a belt bearing surface the belt bearing surface having a diameter over balls not greater than 2A a one way clutch mounted to the shaft a clutch carrier mounted to the one way clutch a torsion spring engaged between the clutch carri...

An isolator decoupler comprising a shaft a pulley journalled to the shaft a torsion spring engaged between the pulley and a carrier the torsion spring loaded in an unwinding direction the carrier engaged with a first spring ring the first spring ring engaged in series with a second spring ring the second spring ring...

A belt (10) made up of an elastomeric belt body (12) an electrically conductive tensile cord (14) such as carbon fiber cord in a cord layer reinforcing the belt body an outer layer (18) of electrically conductive thermoplastic material such as polypropylene film and an electrically conductive fabric layer (14) resid...

An endless rubber power transmission belt such as a CVT belt having a main belt body with a compression portion tension portion an adhesion portion and a tensile cord in contact with the adhesion portion and embedded between the compression portion and the tension portion angled sides and a width to thickness ratio ...

Compositions useful for power transmission belts or hose which utilize environmentally friendly cellulosic reinforcing fibers. The elastomeric or rubber compositions include a base elastomer polyvinylpyrrolidone a cellulosic fiber and a curative. The base elastomer may be one or more selected from ethylene elastomer...

This disclosure relates generally to couplings used in mining and other applications. An extraction device (572) for removing an adapter (520) from a port (562) formed in a structure (564) is provided. The extraction device (572) may include an end wall (574) and a side wall (576). The end wall may define an externa...

An isolating decoupler comprising a hub (11) for connection to a shaft a pulley (16) journalled to the hub the pulley having a belt engaging surface a composite spring (12) having a clutch portion (22) a transition portion (23) and a variable diameter portion (24) the composite spring engaged between the hub and the...

A power transmission belt or hose or other dynamic article with an elastomeric body comprising a rubber composition that includes an ionomeric polymer additive such as an ethylene methacrylic acid copolymer or a butyl ionomer. The rubber body exhibits improved crack growth resistance over the same body composition w...

The present invention relates to an article subject to dynamic loading in use selected from the group consisting of a belt, belting, a flexible coupling sleeve, and a hose comprising a polyurethane/urea elastomer as its primary elastomeric composition and a fibrous textile reinforcement selected from a tensile cord,...

A tensioner comprising a base having a cylindrical portion extending axially, the cylindrical portion comprising a radially outer surface and a receiving portion that is radially inward of the radially outer surface, an eccentric arm pivotally engaged with the radially outer surface, a torsion spring disposed within...

A synchronous belt drive system having: a synchronous belt with a tensile cord of high-modulus fiber such as glass, carbon, PBO, or aramid; a driver sprocket and at least one driven sprocket, at least one of which is an obround sprocket; and a tensioner having: a base having a cylindrical portion extending axially w...

A vehicle steering system transmission comprising a housing, an input shaft journalled to the housing, an electric motor connected to the housing and coupled to the input shaft, an output shaft journalled to the housing, the input shaft and the output shaft coupled by a first pair of sprockets having a first belt tr...

A self-piercing connector comprising, a first body, a second body, the first body comprising a first cutting member for piercing a fluid conduit insulating layer to engage a fluid conduit first conductor, the second body comprising a second cutting member for piercing the fluid conduit insulating layer to engage a f...

An isolating pulley comprising a hub comprising an inertia carrier, the inertia carrier having an inner surface, a spring carrier journalled to the hub, the spring carrier having a releasable driving engagement with the inertia carrier, a pulley journalled to the hub, a spring drivingly engaged between the spring ...

An isolating decoupler comprising a shaft (1) a pulley (2) journalled to the shaft a torsion spring (10) engaged with the pulley a wrap spring (11) frictionally engageable with the shaft the torsion spring and wrap spring connected in series such that each is torsionally loaded in a winding direction the wrap s...

A belt having a tensile cord (12) embedded in the belt extending in a longitudinal direction and made up of two components: a tensile component (31) and a sacrificed component (32 ). The sacrificed component may be broken into a plurality of discontinuous segments (32 ). The tensile component provides most of the r...

An accessory drive tuning device with a torsion spring for angular vibration isolation and having a spring pocket that frictionally engages the end of the torsion spring. The engagement may be with a wedge shape on either the spring end or the pocket or both adapted so that the spring end wedges into the pocket. The...

A belt drive mechanism comprising a first disc in rotational relation to a secondary shaft, a first flexible member engaged between the first disc and the secondary shaft to rotationally drive the secondary shaft about its axis of rotation, the first flexible member having a segment with a tensile load of approximat...

A toothed belt drive with compression span comprising a first sprocket a second sprocket a toothed belt having a toothed belt length and trained between the first sprocket and the second sprocket a first linear guide member in cooperative relation to and disposed a predetermined distance (B) from the toothed belt a ...

A toothed sprocket hub with elastic centering element comprising an input shaft (2) having a receiving portion (5) and a cylindrical outer surface (16) a sprocket (7) engagable with the input shaft the sprocket comprising at least two first surfaces (12) each disposed on a bending beam (14) such that each first surf...

An isolating decoupler comprising a shaft a pulley having a belt bearing portion a one way clutch a torsion spring the torsion spring engaged between the pulley and the one-way clutch and a single bearing disposed between the shaft and the pulley the bearing comprising a radial centerline the radial centerline align...

An isolating decoupler comprising a shaft a pulley journalled to the shaft a torsion spring the torsion spring comprising a flat surface planar in a plane normal to the rotation axis A-A on each end of the torsion spring a one-way clutch engaged between the torsion spring and the shaft a weld bead joining a torsion ...

An aqueous adhesive composition for treating a reinforcing fiber for bonding to a thermosetting polymer matrix and products made therefrom such as power transmission belts. The adhesive composition includes: water as the solvent or dispersing medium; a polyelectrolyte co-curable with the polymer matrix; a primer mat...

An isolating decoupler comprising a shaft having an outer surface a pulley rotationally engaged about the shaft a torsion spring having a first section having a major diameter and a second section having a minor diameter the major diameter is greater than the minor diameter the torsion spring engaged with the pulley...

A tensioner comprising a base a first pivot arm pivotally engaged to the base a first pulley journalled to the first pivot arm a second pivot arm pivotally engaged to the base a second pulley journalled to the second pivot arm a flexible tensile member having a toothed engagement with the first pivot arm and a tooth...

A system and method of making an open-ended, reinforced, layered belt having a profile layer, a top layer material, and tensile cords fully encapsulated there between. The method includes engaging portion of the profile layer on a rotatable cylindrical mandrel (2) with an engaging roller (4), disengaging with a take...

A belt with a tensile cord embedded in an elastomeric body having an adhesive composition impregnating the cord and coating the fibers. The adhesive composition is the reaction product of a polyisocyanate and a polyol or a polyurethane prepolymer derived therefrom and a polyamine curative and optionally additional p...

An immersion heater including an encapsulated, semi -conductive, heating element. The heating element may be a non-metallic, carbon-based material in the form of a monofilament, a yarn or bundle of semi-conductive fibers which may be twisted, braided fibers or yarns, or the like. The encapsulation may be in the form...

A tensioner comprising a base, a shaft connected to the base, an eccentric adjuster coaxially engaged with the shaft, an arm pivotally engaged with the shaft, a pulley journalled to the arm, a torsion spring engaged between the arm and the base, the arm comprising a first receiving portion and a second receiving por...

A belt and sprocket system comprising a tensile cord disposed within a belt body, at least two teeth projecting from the belt body, the belt comprising a pitch length measured between the at least two teeth on the belt, one of the at least two teeth having a tooth tip and a profile comprising a first radius and a se...

A heated fluid conduit comprising a fluid conduit having a body (20) with a conductive material (10) disposed therein, the conductive material comprising two conductors (11, 12) in adjacent relation, the conductive material comprising a woven material, a first crimp connector (40) on the end of a conductor, and a se...

BELT TENSIONER The present invention relates to a tensioner (100, 300). The tensioner (100, 300) comprises a cantilever spring (102, 302) having a first arm (104, 304) and a second arm (106, 306), a pulley (110, 310) journalled to the tensioner (100, 300), and a mounting portion (108, 308). In a first embodiment, a...

A sprocket guard (10) comprising a sprocket (20) having sprocket radial spokes, and having teeth on an outer perimeter, the teeth disposed in a first plane, each sprocket radial spoke communicating with a first cylindrical surface, a circular member (10) having circular member radial spokes, and each circular member...

A banded frictional power transmission belt with a satin-weave, band fabric wrapped around the outside of the belt. The band fabric may be a satin weave of warp and weft yarns and may include a high-strength, wear-resistant yarn such as aramid fibers, and may include a high-adhesive yarn such as nylon and/or cotton....

A toothed power transmission belt with a smooth back side surface has a back jacket on the back side surface; wherein the back jacket comprises a closed-mesh, knit fabric tube. The fabric tube may be knitted on a circular weft knitting machine and may be heat set after knitting. The fabric tube may be treated with a...

A belt drive monitoring system comprising a driver, a driven, the driver and driven connected by an endless member, a first magnetic member having a magnetic field attached to the driver, a second magnetic member having a magnetic field attached to the driven, a first sensor disposed to detect a changing magnetic fi...

A synchronous belt with a tensile member layer having a tensile member embedded in an elastomeric body; a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body; and a jacket covering the toothed surface; wherein the teeth comprise a plurality of fabric insert layers that inc...

A tensioner comprising a base, a pivot arm pivotally engaged with the base, a pulley journalled to the pivot arm, a torsion spring urging the pivot arm, the torsion spring loaded in the unwinding direction, the torsion spring engaged with a damping shoe, the damping shoe frictionally engaging the base, and the dampi...

An isolating decoupler comprising a hub, a pulley journalled to the hub, a torsion spring having a first torsion spring end welded directly to the hub, a wrap spring having a first wrap spring end welded directly to a second torsion spring end, a wrap spring outer surface fictionally engaged with a pulley inner surf...

A tensioner comprising a base, a ring engaged with the base, the ring rotatable about a center "C" within a base opening, a pulley journalled to the ring, a pivot arm pivotally engaged with the ring, a pulley journalled to the pivot arm, a torsion spring disposed between the ring and the pivot arm for urging the piv...

A tensioner comprising a base having a base aperture, the base aperture having an axis A-A and capable of receiving a driven component, a rotary arm rotatably engaged with the base and encircling the base aperture, a swing arm pivotally engaged with the rotary arm, a first torsion spring biasing the swing arm, a fir...

A high efficiency belt having reduced bending stiffness while maintaining a high coefficient of friction is described herein. In some embodiments, the high efficiency belt includes a backing layer, a rib material layer disposed on the backing layer, and cords embedded within the rib material layer, wherein the coeff...

An axial flux motor water pump comprising a housing, a cover attached to the housing, a stator mounted within the housing, the stator comprising a plurality of stator poles mounted in a ring, each stator pole comprising an electric wire winding, a rotor journalled to the housing in cooperating relation to the stator...

An isolator comprising a shaft, a pulley journalled to the shaft, a first torsion spring engaged between the shaft and the pulley, a second torsion spring engaged between the shaft and the pulley, the first torsion spring and the second torsion spring wound in opposite directions, the first torsion spring engaged to...

A tensioner comprising a bracket, a first swing arm pivotally mounted to the bracket, a first pulley journalled to the first swing arm, a second swing arm pivotally mounted to the bracket, a second pulley journalled to the second swing arm, and a damping member connected between the first swing arm and the second sw...

A reinforcement layer for a pressure hose, comprising: a plurality of beams braided together in the form a hollow, cylindrically-shaped body, wherein each beam in the plurality of beams comprises a plurality of ends; wherein the plurality of ends within each beam are arranged in a multiple-layer orientation such ...

An axial flux motor water pump comprising a housing, a cover attached to the housing, a stator mounted within the housing, the stator comprising a plurality of stator poles mounted in a ring, each stator pole comprising an electric wire winding, a rotor journaled to the housing in cooperating relation to the stator ...

An orbital tensioner comprising an annular base, a ring journalled to the annular base on a ball bearing, said ring having a ring axis of rotation (A-A), a first pulley journalled to the ring, a first pulley axis of rotation (B-B) offset from the ring axis of rotation (A-A), a pivot arm pivotally mounted to the ring...

A center cord-line V-belt with a radially centered cord line of helically wound tensile cord embedded in a very high-modulus adhesion gum, an overcord layer, and an undercord layer. The adhesion gum has a substantially isotropic modulus, while the overcord and undercord layers have anisotropy in with-grain and cross...

A tensioner comprising a shaft (2) a base (4) a pivot arm (11) pivotally engaged with the base a pulley (12) journalled to the pivot arm a first spring (5) urging a first damping member (6) into a frictional engagement with the pivot arm the first spring engaged with the base the first damping member imparting a dam...

A hybrid cable having a core and a wrap; the core made from a carbon fiber yarn or bundle of carbon fiber strands or yarns; and the wrap made of a plurality of metal wires helically wrapped around the core the plurality of metal wires laid side by side without crossing each other. The fibers yarns or core may be tre...

A tensioner comprising a base having a base aperture the base aperture disposed to receive a driven component a rotary arm pivotally engaged with the base an axis of rotation of the rotary arm aligned with a base aperture center a first pulley journalled to the rotary arm a swing arm pivotally engaged with the rotar...

A tensioner comprising a base having a cylindrical portion extending axially the cylindrical portion comprising a radially outer surface and a receiving portion that is radially inward of the radially outer surface an eccentric arm pivotally engaged with the radially outer surface a torsion spring disposed within th...

A tensioner comprising a first pivot arm having a first pulley journalled thereto, a second pivot arm having a second pulley journalled thereto, a frustoconical base having a base vertex, a frustoconical pivot shaft having a pivot shaft vertex, the base vertex is oriented opposite the pivot shaft vertex on a common ...

A motor-generator system comprising an internal combustion engine, a motor-generator in driven engagement with the internal combustion engine by an endless belt, the motor-generator, a controller detecting a speed signal of the internal combustion engine, a driver input signal, a battery state signal and a motor-gen...

A synchronous belt having a tensile member layer with a tensile member embedded in an elastomeric body, a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body, a jacket covering the toothed surface, and a unidirectional fabric layer suspended in the belt between the jacket ...

A starter generator system comprising an engine driving a first belt and engaged with a second belt through a one-way clutch a starter generator configured to be driven by the engine through the second belt or to drive the engine through the second belt according to an engine condition and an accessory engaged with ...

A synchronous belt drive system comprising a first obround sprocket (10) having a toothed surface and at least one linear portion (16) disposed between two arcuate portions (14, 15), the arcuate portions having a constant radius (R1, R2), the linear portion having a predetermined length, a sprocket (300) having a to...

Described herein are embodiments of a pressure hose having an improved reinforcement layer. In some embodiments, the reinforcement layer of the pressure hose has a reinforcement volumetric ratio (RVR) of greater than or equal to 110%. The reinforcement layer can include a plurality of braided beams, with each beam c...

A cover fabric for a power transmission belt, the fabric woven from warp yarns and weft yarns; the warp yarns and weft yarns each plied from a first filament yarn and a second filament yarn; the first filament yarn comprising higher tensile strength fibers than the second filament yarn; and the fabric woven in a mod...

A tensioner comprising a base, a first tensioner subassembly pivotally mounted to the base, a second tensioner subassembly pivotally mounted to the base, a tensile member joining the first tensioner subassembly and the second tensioner subassembly, the first tensioner subassembly urged in a direction opposite the se...

A polymeric product with at least one surface subject to wear or abrasion, at least a portion of which product includes microcapsules of an indicator substance which is released to indicate a state of wear has been reached. The microencapsulated indicator substance may be a fragrance or a colorant. The indicating po...

A belt sensor system comprising a first IR sensor disposed adjacent to a belt to detect a belt surface proximity and to generate a first signal therefore, a second IR sensor disposed adjacent to a belt to detect a periodic signal from a second belt surface and to generate a second signal therefore, a signal processo...

A tensioner comprising a base having a shaft, an adjusting member rotatably engaged within the shaft, a pivot arm pivotally engaged with a shaft exterior, a torsion spring engaged between the base and the pivot arm, a pulley journalled to the pivot arm, a pulley axis of rotation B-B that is laterally offset from a p...

A clamp comprising a first member, a second member connectable to the first member and comprising a second surface having a first groove and a second groove, each groove for receiving a toothed belt tooth, a peak is disposed between each groove, the second member cooperatively engages the first member to engage the ...

An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one- way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded...

A tensioner comprising a base, a pivot arm pivotally mounted to the base, a spring disposed between the pivot arm and the base, an arcuate damping member engaged on one end of the spring, the arcuate damping member frictionally engaged with the base, a pulley journalled to the pivot arm on a shaft, the pivot arm com...

A blade pitch drive comprising a driver sprocket, a driven sprocket, a toothed belt trained between the driver sprocket and driven sprocket, the toothed belt having a free span between the driver sprocket and driven sprocket, the free span having an arcuate form when the free span is in a slack condition, the toothe...

A tensioner comprising a base having a shaft and having a radially projecting tab therefrom, a pivot arm pivotally engaged with the shaft about a pivot axis A-A, a torsion spring disposed between the base and the pivot arm, the torsion spring in a compressed state, a pulley journalled to the pivot arm, a first axial...

A cover fabric for power transmission belts having two or more alternating stripes or bands of different frictional properties. The stripes may be different fabric constructions. The fabric may be woven or knit with stripes of different area or yarn densities, different permeabilities, or different openness. The fab...

A tensioner (1000) comprising a base (100), a shaft (120) extending from the base, a pivot arm (140) pivotally engaged with the shaft, a torsion spring (130) disposed between the pivot arm the base, a base portion (111) cooperatively engagable with a pivot arm portion (141) upon an axial movement of the pivot arm to...

An axial flux motor, comprising: a stator assembly comprising a stator housing that accommodates a plurality of stator cores mounted in a yoke, each stator core comprising an electric wire winding; a rotor assembly comprising a rotor housing that is interconnected by way of at least one bearing to a shaft, a plate i...

A hybrid tube construction for use in, e.g., industrial or hydraulic hoses is described, the hybrid tube generally including coextruded interior tube and outer tube layers. The interior tube layer of the hybrid tube is a functional layer having chemical resistance to the fluid to be conveyed within the hybrid tube, ...

An arrangement for balancing axial forces in driver and driven clutches of a continuously variable transmission system that may include but is not limited to a pulley, a sheave mechanism, a driver clutch mechanism, or driver clutch, a driven pulley mechanism, a driven clutch mechanism, or driven clutch, and a shifti...

A rubber composition having a polymer blend of nitrile and ethylene terpolymers, particularly acrylonitrile-butadiene copolymer (NBR) and ethylene polymers. The composition has NBR as 30-50 wt.-% of the total composition. In some embodiments, the ethylene polymer is EPDM rubber, an ethylene acrylic elastomer, or a c...

A toothed belt including asymmetric tooth profiles. The teeth of the toothed belt include a vertical segment on the leading side of the tooth that allows the teeth to carry increased loads. This in turn helps prevent tooth jump. A sprocket configured to smoothly enter and exit the toothed belt is also described, and...

A tensioner adjuster includes a plate portion with an opening for receiving a fastener during installation of a tensioner. The tensioner adjuster further includes a first curved neck portion extending from the plate portion and a first guide portion extending from the first curved neck portion with a fastener engagi...

Endless belts, such as for use with e-bikes and other personal mobility systems such as standard bicycles, wheelchairs, scooters including electric scooters, and other systems that utilize a belt for transmitting power to impart motion to the system. The belts are particularly suited for inhibiting "tooth jumping" d...

A low axial runout driven pulley through the application of a spindle shaft utilizing multiple sets of bearings with radial clearance to the shaft. Utilizing a belt driven pulley supporting overhanging loads with low axial runout provided by a spindle shaft with radial clearance to supporting bearings. Further axial...

A continuously variable transmission for a bicycle is provided that improves the functionality of the bicycle and increases the reliability and longevity of the transmission. The transmission is continuously variable among a potentially infinite number of speed ratios allowing a user to select the proper speed ratio...

A rubber composition having a blend of ethylene polymers particularly halogenated and non halogenated ethylene polymer. The composition has the halogenated ethylene as 25 50 wt. % of the total composition. In some embodiments the non halogenated ethylene polymer is an ethylene acrylic elastomer. The composition ca...

To obtain maximum performance and decrease the overall production and design cost application-specific stacked sprockets and stacked pulleys may be utilized. A stacked sprocket may be manufactured utilizing low-cost manufacturing methods and low-cost sheet or plate material over a solid billet. The modularity of a s...

A transmission for an electric motor-assisted vehicle translates the relatively high speed, low torque rotation of an output shaft of an electric motor to a drive wheel of the vehicle, the drive wheel turns a chain, a rear hub, and a rear wheel to propel the bicycle or other vehicle. The output shaft of the electric...

A multi-layer reinforced industrial belt is described, the belt generally including a plurality of cords embedded within a body portion of the belt and a reinforcement fabric layer embedded within the body portion of the belt between the plurality of cords and the contact surface of the belt. In some embodiments, th...

A continuously variable transmission for a vehicle, in particular a bicycle, assists a user under a variety of conditions. The transmission combines the reliability and efficiency of gears with the ability to continuously and infinitely vary the gear ratio of the transmission. The transmission can have a planetary g...

An internal-flanged sprocket, such as a center-flanged sprocket, for a belt, having an installation-induced stress ring as the flange. The flange is a circular split ring flange having at least one turn and having a first end and an opposite second end. The flange is independent from the sprocket body and is positio...

A tensioner for a belt is provided that has independently adjustable forces that press a pulley into the belt and that provide a damping effect for the tensioner. The tensioner comprises a base bracket secured to, for example, an engine block, an arm rotatably engaged with the base bracket, and a pulley rotatably en...