Boy do we have a motor for you. This one we picked up from McDonnell Douglas Aerospace. It was on a surplus list. It appears to be new. It can be yours if the price is right. Just make us an offer. Here are the specifications.
PRELIMINARY D.C. SERVOMOTOR PARAMETERS
FRAME - DRE56ZTS3 TYPE FIELD C 18
OPERATING ENVELOPE CURVE K-8766 DUTY CYCLE CURVE K-8767
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PARAMETER VALUE UNITS
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GENERAL
CONT. STALL TORQUE (40C.AMB.) TENV 531.000 LB.IN.
PEAK STALL TORQUE AT 25C. 10238.000 LB.IN.
POWER AT PEAK STALL TORQUE AT 25C. 69.800 KILOWATTS
MECHANICAL TIME CONSTANT AT 25C. 2.545 MILLISECONDS
ELECTRICAL TIME CONSTANT AT 25C. 10.050 MILLISECONDS
MOTOR CONSTANT AT 25C. 38.751 LB.IN./SORT.WATT
VISC. DAMP. (O. Z SOURCE) AT 25C. 169.000 LB.IN./RAD/SEC.
THEOR. ACCEL. AT PEAK TORQUE 23698.000 RAD./SEC./SEC.
TORQUE RIPPLE 1.000 PERCENT
29.000 CYCLES/REV.
THERMAL
MAXIMUM AMBIENT TEMPERATURE 40.000 DEGREE C.
INSULATION CLASS F
THERMAL TIME CONSTANT 130.000 MINUTES *
T.E.N.V. THERMAL RESISTANCE STALL 0.296 DEGREE C./WATT
WINDING (SPEC. NO. 26183)
TORQUE CONSTANT AT 25C. 7.124 LB.IN./AMP*
VOLTAGE CONSTANT AT 25C. 0.805 VOLT SEC./RAD.*
ARM. RESISTANCE LESS BRUSHES AT 25C. 0.034 OHMS *
ARMATURE INDUCTANCE 0.340 MILLIHENRYS*
MAX. TERMINAL VOLTAGE 116.000 VOLTS
MAXIMUM RPM 1375.000 RPM
VOLTS AT PEAK TORQUE AT 25C. 48.570 VOLTS
AMPS AT PEAK TORQUE AT 25C. 1437.000 AMPS
DAMPING RATIO 0.252
UNDAMPED NATURAL FREQUENCY 197.700 RAD./SEC.
MECHANICAL
ARMATURE POLAR MOMENT OF INERTIA 0.432 LB.IN.SEC.SEC.*
STATIC FRICTION TORQUE 21.770 LB.IN.
VISC. DAMP. (INF. Z. SOURCE) AT 25C. 0.241 LB.IN./RAD./SEC.
MOTOR WEIGHT 205.000 LBS.
TACHOMETER
VOLTAGE GRADIENT 31.500 VOLTS/1000 RPM *
0.300 VOLT SEC./RAD. *
RIPPLE 1.000 PERCENT
33.000 CYCLES/REV.
RESISTANCE AT 25C. 72.100 OHMS *
INDUCTANCE MILLIHENRYS *
MINIMUM LOAD RESISTANCE 7200.000 OHMS
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*TOLERANCE PLUS OR MINUS 10 PERCENT
PEERLESS - WINSMITH INC., WARREN, OHIO
DATE OCT. 30, 1990 PREPARED BY JDO SHEET 1 0F 1 K-8765 REV. C
