Global Clutch Specifications Model Rated Torque Heat Inertia (WR2) Nonof Rotating Members Dissipation Excited at 1800 rpm Drag Torque of Outer Outer Inner Member (Watts) lb-ft Nm lb-ft2 kg-m2 lb-ft2 kg-m2 Weight Coil Data (90 VDC) Time Constant (Seconds) lb kg Rated Current .00055 11 5 .16 361 .11 .17 .030 .0013 14 6 .21 278 .11 .17 .050 .08 .0034 25 11 .32 186 .17 .22 .104 .30 .013 37 17 .39 150 .18 .26 lb-ft Nm GCA GCAM 5.5 7.5 392 .07 .09 .27 .012 .013 GCB GCBM 11 14.9 411 .07 .09 .43 .018 GCC GCCM 26 35.2 575 .23 .31 1.19 GCD GCDM 56 75.9 719 .53 .76 2.47 Ω@ Current Torque 20˚C Time constants are the time in seconds for current or torque to reach 63% of the final value after step function voltage is applied. "Rated current" is the current which will occur from a 90 VDC input to the clutch when the unit is operated at its rated temperature (maximum heat dissipation). Non excited drag torque and torque time constant measured at 1800 rpm. Axis of shafts must lie within 30˚ of horizontal. Non excited drag torque values represent a typical unit after a few minutes of use. Drag torque in a new, unused unit may initially be higher. Typical Torque vs. Current (90 VDC and 24 VDC Models) Magnetic Particle Clutches & Brakes Magnetic Particle Clutches & Brakes 113