ELECTROMAGNETIC CLUTCHES & BRAKES
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ6Electromagnetic clutches and brakesMiki Pulley electromagnetic clutchesand brakes belong to the type ofdry/single plate/coil static system inthefrictional-typeelectromagneticclutches and brakes.The "Electromagnetic clutches andbrakes" is a generic term used to refer tothe functions such as transmission andinterruption or deceleration andstoppage of torque by electromagnetic action. They areclassified mainly by three inaccordance with the intendeduse.Electromagnetic clutches and brakes Electromagnetic clutches and brakesElectromagnetic micro clutches and brakesElectromagnetic clutches and brakesElectromagnetic clutch and brake units Electromagnetic micro clutches andbrakesIdeal for use in small precision equipment such as businessmachine, communications equipment or automobilemachinery that has a susceptibility to fluctuations of torqueand responsiveness. The 102 model (clutch) and the 112model (brake) with the same basic design can be provided aswell as the customizable CYT model (clutch). Electromagnetic clutches andbrakesCompatible with overall general industrial machinery and therational design offers good performance.The 101・CS model (clutch) and the 111 model (brake) withthe same basic design can be provided as well as the CSZmodel (clutch) and the BSZ model (brake) designed tosignificantly reduce the assembling time by integrating eachpart. Electromagnetic clutch and brakeunitsSeveral clutches and brakes can be used when designing acomplex mechanism. Various units are available to eliminate atroublesome task to combine the required number of eachclutch and brake. A number of models that combined a motoror a reducer are also available.6
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ7 Basic structure and Principle of operation Constant-force plate springAs our basic actuation method of "Electromagnetic clutches andbrakes", we adopt spring drive using a "constant-force platespring".The armature assembly of clutches and brakes consists of twoConstant-force plate springmoving parts an armature and an armature hub. A positiveconnection between these two parts (armature and armaturehub) requires transmitting torque and moving the armature in anForceaxial direction.The "constant-force plate spring" is capable of transmittingtorque and releasing the armature by single piece, which offersDia.good performance compared with other methods.The thin spring is excellent for torque transmission. It is verystrong when loaded in the tangential direction. There isstructurally no backlash. Stable suction and release can beperformed by waving the plate spring to reduce variation ofFunction of the plate springTorque to the plate springload. BrakeRotorArmatureBrake statorBrake armatureClutch statorConstant-forceCoilplate springCoilKeywayConstant-forceplate springC-shaped retainingring grooveArmature hubAir spaceLiningAir spaceKeywayLiningC-shaped retainingLead wirering grooveLead wireThe clutch consists of three basic elements, the armature assembly,The brake consists of two basic elements, the armature assembly of therotor of the rotating part, and stator of the static part.rotating part and the stator of the static part.The armature assembly is essentially formed of the armature and theThe armature of the armature assembly is pulled and attached to theconstant-force plate spring. Only the armature is pulled and attached tostator by energization of a coil, and the damping torque is transferred tothe rotor by energization of a coil, and the torque is transferred from thethe rotating body through the plate spring.driving side to the driven side through the plate spring.Constant-forceplate spring(Enlarged)ArmatureMagnetic circuitWhen applyingcurrent/connectingOperation of clutchAir gap(Enlarged)When releasedConstant-forceplate spring(Enlarged)When applyingcurrent/brakingArmatureMagnetic circuitAir gap(Enlarged)When releasedOperation of brake7Electromagnetic clutches and brakes Clutch
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ8Electromagnetic micro clutches and brakes 102 model (electromagnetic microclutches) CYT model (customizableelectromagnetic micro clutches) 112 model (electromagnetic microbrakes)Clutch and brake torque［N・m］0123102 ModelCYT Model112 Model SelectionElectromagnetic micro clutches and brakescondition and the intended use. The friction type clutches andz Intended use (Requirement functions forclutches brakes)brakes are useful since the performance is instantaneouslyCoupling・Uncoupling, Braking・Holding, Speed change,exerted. If the clutch and brake is not properly selected theForward reverse operation, High-frequency operation,clutch or brake my have performance problems. Fully graspPositioning・Dividing, Inching, etc.the following matters when selecting.x Required performanceSelect the appropriate shape and size in accordance with the useTorque, Response, Frequency of use, Operating life, Accuracy,Work volume, etc.c Load characteristicLoad torque, Load moment of inertia J, Load change, Rotationspeed to be applied, etc.v Driving side conditionMotor (three phase, single phase, alternatingcurrent, etc.), Engine, Hydraulic・Pneumatic pressure, etc. Model listClassModelType Excellence Adjustment Suitable depending on applications Customizing1315Electromagnetic micro clutches and brakesMicro clutches102CYT1133353133M33B 13Micro brakes1121211AppearanceP10〜15Descriptive pageRotational transmissionP16〜19 P20〜23 AdaptabilityBraking・HoldingWall mountingShaft mounting High-velocity revol. (1000min-1 〜) Parallel axis input/output Compact design Easy to mount and use One-touch mountingEnvironmental responsiveness Shaft-to-shaft input/outputCharacteristic8
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ9 Type・Model Selection Selection of clutchesThere are two types of stators and three types of armatureassemblies with different mounting methods, and six combinations ofthose. Select the appropriate type for the configuration of themounting part.z Select the place to mount (Selection ofstators)102 model (micro clutches)There are two types of stators; the flange mounted type thatallows effective space use and the bearing mounted type thatallows easy setting on a shaft. By combining with three types ofarmature assemblies with different mounting forms (directmounting), six types can be selected according to the mountingconditions.q Mount directly on the wall surfaceA flange mounted type stator is used. This type is shorter to theaxial direction. Mounting space can be saved.w Mount on a shaft and apply a piece or a pin to stabilize.A bearing mounted type stator is used. This type is relativelyeasy to mount. The trouble from processing the mountingportion can be saved.(1) Mount directly on the wall surface(2) Mount on a shaftThere are two types of connections between the driving side and thedriven side.q Couple a mating shaftUse an armature assembly for the mating shaft. Positioning such ascentering may become complicated. A coupling flange or a flexibleCYT model (customizable micro clutches)The stator is a bearing mounted type that allows easy setting on ashaft. The dry-metal type or the ball-bearing type can beselected depending on the shaft rotation speed.Various custom types such as assembling a pulley and gear in thearmature type-3 or combing a shaft with it are available.coupling may be required.w Wrapping and gear connection of a parallel shaftUse an armature assembly for through shaft. This methodallows for rational mounting, and is relatively easy.(1) Directly connectthe mating shaft.(2) Wrap the parallel shaft. Selection of brakesSince a brake is used to brake and maintain the rotating body,the stator part must be properly fixed on the static part.There are three ways to mount an armature assembly on therotating body. Select the appropriate method in accordance with theconfiguration of the mounting part.q Mount on the braking shaft112 model (micro brakes)This model is a compact and high-performance brake with thesame basic design with the micro clutches.The optimum condition can be selected from the three types ofarmature assemblies with different mounting forms.The point for selecting the mounting method from three types isthat determining how to fix on the shaft effectively.w Mount directly on the rotating bodySince the inertial body that is not fixed on the shaft will not stopwhen stopping the shaft, use an armature assembly that can bedirectly mounted on the inertial body.(1) Mount directly on a shaft(2) Mount on a rotating body9Electromagnetic micro clutches and brakesx Select the shaft configuration to mount(Selection of armature assemblies)
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ10102 modelElectromagnetic micro clutchesElectromagneticmicro clutchesand brakesElectromagneticclutches andbrakesClutchand brakeunitsSpringappliedbrakesElectromagnetictooth clutchesBrake motorsPower suppliesfor clutches &brakesIdeal for use in small precision equipment such as business machines,communications equipment or automobile machinery that has asusceptibility to fluctuations of torque and responsiveness. Manydifferent types are available in order to install in any place. Compact andlightweight, and easy to mount and use. Various typesThere are two types of stators; the flange mounted type that allowseffective space use and the bearing mounted type that allows easysetting on a shaft. By combining with three type of armatureassemblies with different mounting forms (direct mounting/shaftmounting type), six types can be selected according to the mountingterms. Adapted to the RoHSAdapted to the Restriction of Hazardous Substances that bans the use of6 substances such as mercury or lead can be selected as option.Clutch torque［N・m］Operational temperature［ ］Backlash0.4 〜 2.4 10 〜 40ZeroElectromagnetic micro clutches and brakes 6types Stator・Rotor formThe flange mounted type is installed by combining a stator and rotortogether. It allows effective wall space use. The bearing mountedtype has integral structure of stator and rotor, and also has built-inoil retaining metal bearing. It allows easy setting at the optionalposition on a shaft.Flange mounted typeBearing mounted type With the armature type-3¡Mainly used for through shaft.¡Ideal for wrapping and gear drive.¡The armature type-3 is the type of "direct mounting". Easy toinstall to a sprocket or a spur gear.¡The 102- -13 uses a wall surface to mount.¡The 102- -33 is mounted on a shaft.Armature type-3102- -13102- -33Armature type-5102- -15102- -35Armature type-1102- -11102- -31 With the armature type-5¡Mainly used for through shaft.¡The armature type-5 is the type of "bearing mounting". Easy toinstall to a sprocket or a spur gear.¡The 102- -15 uses a wall surface to mount.¡The 102- -35 is mounted on a shaft. With the armature type-1¡Mainly used for through shaft.¡The armature type-1 is the type of "shaft mounting".¡The 102- -11 uses a wall surface to mount.¡The 102- -31 is mounted on a shaft.10
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ11 Outline StructureStatorThe micro clutch 102 model consists of the following three parts; theRotorstator with built-in coil, rotor with lining material, and armatureArmatureassembly. Each part is mutually combined in the correct physicalPlate springrelationship, and forms a magnetic circuit. Stator and Rotor¡Flange mounted typeThe stator is directly fixed on the static part such as flange, byKeya mounting flange. The rotor is fixed against the rotating shaft bya key. The stator and rotor are combined through a narrow airAir gap [a]Air spacegap which becomes a part of the magnetic circuit, and formsmagnetic poles.BearingStructure of the flange mounted type¡Bearing mounted typeThe stator is integrated with the rotor through the bearing,and is maintained in the static part of the machine by anStatorRotorAntirotation armantirotation arm. The rotor is fixed on the rotating shaft by aArmaturePlate springsetscrew. The stator and rotor form a magnetic pole through thebearing (iron oil-bearing metal).Setscrew Armature assemblyThe armature assembly is composed of armature, plate springamount of air gap [a] facing the rotor. The though-shaft armatureBearingassembly is fixed on the shaft by a bearing. The shaft-to-shafttype armature assembly is fixed on the opposed shaft by a key andset screw.Air gap [a]Structure of the bearing mounted type Stator・Rotor mounting Flange mounted type¡CenteringFor the mounting shaft of the stator and rotor, centering isRetaining ringHAir gap [a]performed by "positioning fits" using the stator insidediameter or the flange outside diameter. Since the insidediameter is designed to fit into the nominal dimension for theoutside diameter of the ball bearing, correct centering can beBearingRotorperformed by directly using the bearing that supports theshaft.¡Setting of axial positional relationship (H measurement)For the positional relationship between the stator and rotor,set the H measurement in order that it becomes its specifiedStator/Rotor mounting (flange mounted type)value. If centering is performed by using a ball bearing, use aretaining ring and strike the rotor edge to determine the Hmeasurement. Bearing mounted type¡Centering is not necessary.¡Fix on the shaftThe stator and rotor can be easily fixed on the shaft by afixing collar and a setscrew.¡Maintain the statorThe force acting on the stator is a minimal amount of torquecaused by the supporting bearing friction. To prevent freerotation of the stator, and to protect a lead wire, maintain anantirotation arm in the static part of the machine. Anantirotation arm must be retained in the suitable form for notturning into the shaft direction.Antirotation armAntirotation armStatorFixing collarSetscrewBearingStator/Rotor mounting (bearing mounted type)11Electromagnetic micro clutches and brakesand armature hub. It is combined properly with keeping a certain
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ12102- -1 typeElectromagneticclutches andbrakesElectromagneticmicro clutchesand brakesElectromagnetic micro clutches/Flange mounted typeClutchand brakeunitsSpringappliedbrakesElectromagnetictooth clutchesPower suppliesfor clutches &brakesBrake motors 102-05-13102-05-15102-05-11DynamicTorqueCoil（at 20 ）Heat- Maximum Rotating part moment of inertia J Allowable Total amount of Armature Torquerotationengaging energy before air pull inbuild-up decaying MassfrictionSize torqueRotorenergy gap readjustment timetimetime ［kg］Td Voltage Wattage Amperage Resistance resistance speed Armature22T J］ t［s］at［p s］t［d s］［N・m］［V］［W］［A］［Ω］ class ［min 1］［kg・m ］［kg・m ］ EeaR［J］ 3372B052.4DC24100.4258B6.75 10 71.00 10 61.00 10 61.30 10 61.95 10 61.95 10 64.38 10 66.15 10 66.15 10 69.08 10 61.38 10 51.38 10 0002.45 10 615002 1060.0090.0190.0173.25 10 623003 1060.0090.0220.0201.41 10 545006 1060.0110.0280.0303.15 10 590009 1780.1950.1910.3100.3350.325*Dynamic friction torque (Td) indicates the value when relative velocity is (100min-1).*Rotating part moment of inertia and mass indicate the values of maximum bore diameter.*Power supply voltage variation must be within 10% of the coil voltage.102- -13(For direct mounting)Unit［mm］φC1 h9 Sa 0.05φV2X2 0.006 0.0313 0.006 0.0313 0.006 0.0315 0.012 0.042810101504tφA2φA1φA4φdH7400φC5φC4 H8P.C.D. C2JZbP.C.D. A3 0.05MφV1KShaft bore dimensionsNew JIS standards Previous edition of JISSized H7 correspondence standards correspondenceb P9tb E9t5ーー0262 0.0060.8 0.303 0.0310050.8 0.301.2 0.301.2 0.302 0.504 0.050 0.0204 0.050 0.0205 0.050 0.0201.5 0.501.5 0.502 0.50φV34-φ3.4HφC3Electromagnetic micro clutches and brakes Dimensions45 P4-90 LUnit［mm］SizeRadial 3018.554470554503825.5655819.5 10.539C333.5 11.4C4C5Axial direction dimensionsSV1V2V3ZHJKLMaX51.10.1CADFile No.118ー2-2.1 2-5.3 2-4 4-90 180.8102-1311310333-2.6 3-6 3-4.5 6-60 22.2 20.2224.5 6.71.3 0.15 1.2102-132201915.5413-3.1 3-63-5 6-60 25.4 23.4228.21.3 0.15 1.5102-13327.22622513-3.1 3-6.5 3-5.5 6-60 28.1 26.1231.3 8.21.5102-13413.616.5 1.5 20.5P70.21.5*The size 02 has a round flange.*There is no keyway on the rotor of the size 02. Fix on the shaft by press fitting. Ordering information102- 03 -13 24V 6 DINSizeRotor bore diameter (Dimensional sign d)Keyway standard New JIS standards correspondence：DINPrevious edition of JIS standards correspondence：JIS*Unnecessary to enter the keyway standard if there is no description (–) in the shaft-bore dimensions table. Specification displayed as diagonal line is not available as a standard product.12
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ13 Dimensions(For through shaft)102- -15φC1 h9a 0.05J81010051504400RotorkeywayφA2φA3 h7φC5φd1 H7φC4 H8P.C.D. C2φC3bt Sφd2H7MφA14-φ3.4HKUnit［mm］Shaft bore dimensionsNewJIS standards Previous edition of JISSize d1 d2 correspondencestandards correspondenceH7 H7b P9tb E9tーー02 5 52 0.0060.8 0.303 6 6 0.03102 0.006 0.0313 0.006 0.0313 0.006 0.031 0.0125 0.0420.8 0.301.2 0.301.2 0.302 0.504 0.050 0.0204 0.050 0.020 0.0505 0.0201.5 0.501.5 0.502 0.50※The d2 of the 5-type armature is a straight bore.45 PL2L1Size81010154-90 N1Unit［mm］Radial dimensionsAxial direction 526.54125.423.4240.25128.126.1243.3aCADFile 80.2102-154PN11.151.36.730.81.334.31.5*The size 02 has a round flange.*There is no keyway on the rotor of the size 02. Fix to the shaft by press fitting.102- 03 -15 24V R 6 DIN A 6SizeArmature bore diameter（Dimensional sign d2）Keyway standard New JIS standards correspondence: DINPrevious edition of JIS standards correspondence: JISRotor bore diameter (Dimensional sign d)*It is not necessary to enter the keyway standard if there is no description (–) in the shaft-bore dimensions table. Dimensions(For shaft-to-shaft)102- -11φC1 h9H Sbt81010051504φA1φA2JφA3Uφd2 H7φd1 H7φC4 H8φC5M400P.C.D. C2φC34-φ3.4a 0.05K2 0.006 0.0313 0.006 0.0313 0.006 0.0315 0.012 0.0420.8 0.301.2 0.301.2 0.302 0.504 0.050 0.0204 0.050 0.0205 0.050 0.0201.5 0.501.5 0.502 0.504-90 L2m｡（120 arrangement）L102030405810101545 TPSizeUnit［mm］Shaft bore dimensionsNewJIS standards Previous edition of JISSize d1 d2 correspondencestandards correspondenceH7 H7b P9tb E9tーー02 5 52 0.0060.8 0.303 6 6 0.0310Unit［mm］Axial direction dimensionsA1A2A3Radial 3 22.2 20.224340175447201915.5412-M3 25.4 23.42545024655827.22622512-M4 28.1 26.1243.3 34.333.5 11.411C5SmHJK8ーM31816.51.5MPUTaCADFile No.1.1572.50.1102-11134.5 26.51.36.71040.15102-11240.2 30.81.371250.15102-1131.58.21250.2102-114L1L227.5 22.5*The size 02 has a round flange.*There is no keyway on the rotor of the size 02. Fix on the shaft by press fitting. Ordering information102- 03 -11 24V R 6 DIN A 6 DINSizeRotor bore diameter (Dimensional sign d1)*Unnecessary to enter the keyway standard if there is nodescription (–) in the shaft-bore dimensions table. Specificationdisplayed as diagonal line is not available as a standard product.Keyway standardNew JIS standards correspondence : DINPrevious edition of JIS standards correspondence : JISArmature bore diameter（Dimensional sign d2）Keyway standardNew JIS standards correspondence: DINPrevious edition of JIS standards correspondence: JIS13Electromagnetic micro clutches and brakes Ordering information
01̲マイクロ̲E̲p006̲023.qxd 11.11.10 9:37 AM ページ14102- -3 typeElectromagneticmicro clutchesand brakesElectromagnetic micro clutches/Bearing mo
clutches and brakes. The "Electromagnetic clutches and brakes" is a generic term used to refer to the functions such as transmission and interruption or deceleration and stoppage of torque by electro-magnetic action. They are classified mainly by three in accordance with the intended use. Electromagnetic micro clutches and brakes
A Broad Range of Clutches, Brakes and Clutch/Brake Combinations Warner Electric packaged performance products are electric clutches and brakes, assembled and aligned at the factory, to offer maximum start-stop performance combined with quick and easy installation. They are offered as clutches, brakes, and clutch/brake combinations in a wide range
How do centrifugal clutches or brakes work? Centrifugal clutches and brakes use centri-fugal forces to transmit power (clutch) or to limit speed (brake). As the brakes are based on a physical principle, centrifugal clutches or brakes do not require any additional external power supply, which makes them a perfect solution for safety applications .
Clutches, Brakes, Coupling, and Flywheels Clutches, brakes, couplings, and flywheels are a group of elements usually associated with rotation that have in common the function of storing and/or transferring rotating energy In analyzing the performance of these devices we shall be interested in: The actuating force The torque transmitted The .
Clutches & Brakes Building Our Business On a Strong Foundation Danaher Motion has a long history of manufacturing quality clutches and brakes. Our roots are firmly planted in brand names such as Deltran, API (American Precision Industries), and Warner PSI bringing over 100 years of combined manufacturing experi-ence.
Clutches & Brakes Building Our Business On a Strong Foundation Thomson has a long history of manufacturing quality clutches and brakes. Our roots are firmly planted in brand names such as Deltran, American Precision Industries (API) and Warner PSI, combining more than 100 years of combined manufacturing experience.
EATON Airflex Clutches & Brakes 10M1297GP November 2012 181 Airflex DBA Description Section E Model DBA brakes are spring applied, pressure released, disc style brakes. They develop equal torque in either direction of rotation. Their torque and thermal capacities allow them to be used in the most demanding applications.
Couplings, clutches and/or brakes Conjoint control of vehicle sub-units of different type or different function, e.g. when at least one sub-unit is a clutch or a brake B60W Fluid gearings F16H 39/00, F16H 41/00, F16H 43/00 Combinations of fluid gearings with clutches or couplings F16H 45/00
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