friction clutches - Arten Freios e Embreagens Industriais

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