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Table of Contents◗SERVOMOTOR BRAKESEclipse SERVOMOTOR BRAKESHigh-torque, Spring-engaged, Power-off BrakesECLIPSE PRODUCTSServomotor BrakeNexen has an Eclipse brake for every servo motor. Flanges rangein size from 57 mm [2.25 in] up to 265 mm [10.43 in] square withshaft diameters from 6,35 mm [0.25 in] up to 48 mm [1.89 in].Brake torque is four times that of servo motor internal brakes andranges from 2,25 Nm [20 in-lb] to 125 Nm [1100 in-lb].These low inertia brakes provide the holding power needed forevery application.Nexen Spring-engaged, Air-released ProductsEmergency stop, spring-engaged brakes to fit every servo,stepper or alternating current motor up to 20 horsepower.Eclipse brakes are designed to match NEMA and IEC flangeand shaft dimensions.Safety BrakeNexen’s Eclipse brakes function to safely hold a load in placein power-off situations. These units hold the load stationary untilthe motor moves again, helping to:• Provide worker safety • Function during power failures• Prevent machine damage • Reduce machine coasting time• Perform emergency stops • Provide safety during lock-• Protect productout/tag-out proceduresAC Motor Brake, NEMA and IEC flangedNexen’s motor brakes mount directly to the face of NEMA motorframe sizes 56C to 254TC and IEC motor frame sizes 80 to 132 M.These holding brakes provide torque up to 125 Nm [1100 in-lb].Linear Stage BrakeThe Eclipse Stage Brake mounts to support end of a ball screwor belt drive linear stage. The brake is available in NEMA 23,34 and 42 frame sizes with holding capacities up to 22 Nm[200 in-lb] torque.Cool OperationHolding brakes are typically disengagedwith air or electricity.Brakes using air have severaltimes more torque than similarsized electric brakes. When electricbrakes remain disengaged forlong periods of time, the electriccoil is on and consuming energy.This energy, in the form of heat, isabsorbed by the brake and canrob the brake of efficiency whenit’s called on to stop and/or holdthe load. Conversely, when an airbrake remains disengaged, asmall amount of compressed air isdead-headed into an air chamberkeeping the springs from engagingthe brake. No energy is consumedand the brake remainscool until it is applied which dramaticallyreduces the chance ofbrake fade (loss of torque).SERVOMOTOR BRAKE, INSTALLED, ISOMETRIC AND END VIEWS126
Table of ContentsEclipse SERVOMOTOR BRAKES ◗SERVOMOTOR BRAKESHigh-torque, Spring-engaged, Power-off BrakesECLIPSE SERVOMOTOR BRAKEThe Eclipse Servomotor Brake family now includes a line ofspring-engaged servomotor brakes equipped with a split hub,clamp collar for attachment to the servomotor shaft. With superior torque outputs, these brakes provide rugged durability fordynamic stopping applications. Eclipse brakes offer consistentlong-lasting performance with no maintenance needed. Nexen’sservomotor brakes deliver at least 20-50% more torque thancompetitive brakes and provide safe, simple operation.The easy-to-use, flange-mounted Eclipse brakes solve many ofthe problems associated with brake motors. Use them with standardmotors for brake motor functionality and off-the-self availability.Nexen offers servomotor brakes in a variety of input and outputflange/shaft combinations, all designed to increase the safetyof your machines.Servo Motor Brake withNEMA output flange• Simple installation with split hub,shaft collar• Spring-engaged, air-released• True pilot mounting• High torque when compared toelectric brakes• Zero backlash for precision holding• Bidirectional braking• Long facing life• Cool operation, high efficiency, lessenergy consumption• Designed for horizontal or verticalapplications• Strong enough to stall the servo motor• Quick, safe emergency stoppingand holding• Remains engaged and holds loadduring motor change-outs• Ideal for use with linear ball-screwstages and belt drives• Field Serviceable• Low inertia• Output flange replicates motor flange• Quick exhaust valve included• High torsional rigidity• High overhung load capacity• Meets IP67 dust and waterproof standardsOptional Solenoid Valve allows for:• Visual disengagement indication• Manual disengagement on valve• Simple connections with 24VDCcontrol and 80 PSIG shop airPRODUCT NUMBER 964650ECLIPSE MODELS 2, 3, 4, 5, CUTAWAY VIEWECLIPSE MODELS 7, 9, 11, CUTAWAY VIEW127
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Table of ContentsPRODUCTCAT ALOG10-
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Table of Contents◗PRODUCT NUMBER
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Table of Contents◗FAMILY OF PRODU
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Table of Contents“Air Champ” ®
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Table of Contents◗APPLICATION GUI
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Table of ContentsWeb ProductsGUIDE
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Table of Contents◗ MICRO FRICTION
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Table of ContentsWeb ProductsIn acc
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Table of ContentsWeb ProductsTENSIO
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Table of ContentsWeb ProductsHousin
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Page 129 and 130: Table of ContentsEclipse SERVOMOTOR
Page 131 and 132: Table of ContentsEclipse LINEAR MOT
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Page 137 and 138: Table of Contents◗ BW MODEL BRAKE
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Table of Contents◗DRUM BRAKES“A
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Table of ContentsDRUM BRAKES “Air
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Table of ContentsDRUM BRAKES “Air
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Table of Contents◗HEAVY DUTY BRAK
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Table of Contents◗METRIC BRAKES
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Table of Contents◗BRAKESWeb Produ
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Table of Contents◗TENSION CONTROL
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Table of Contents◗CLUTCH/BRAKES
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Table of Contents◗CLUTCH/BRAKESFM
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Table of ContentsCLUTCH/BRAKES “A
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Table of Contents◗WEB AUXILLARY C
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Table of Contents◗REPAIR KITS“A
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friction clutches - Arten Freios e Embreagens Industriais

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