Beckwith Electronics


Hamburg, Illinois 62045
(618) 232-1139

(618) 232-1172 fax

Contact Us



Boy do we have a motor for you. Actually we have two of these, one grey and one black. These we picked up[ from McDonnell Douglas Aerospace. They were on a surplus list. They have been rebuilt and were on the shelf as replacements. They can be yours if the price is right. Just make us an offer. Here are the specifications:

                   PRELIMINARY D.C. SERVOMOTOR PARAMETERS

FRAME-    DPM210ZGF3    TYPE FIELD- PERM. MAG. 8     MODEL NO.

OPERATING ENVELOPE CURVE                        DUTY CYCLE CURVE
____________________________________________________________________________
                     PARAMETER                     VALUE         UNITS
____________________________________________________________________________
GENERAL
          CONT. STALL TORQUE (40C.AMB.)   TENV     480.00000 LB.IN.
          CONT. STALL TORQUE  BLOWER COOLED       1400.00000 LB.IN.

          PEAK STALL TORQUE           AT 25C.     3143.00000 LB.IN.
          POWER AT PEAK STALL TORQUE  AT 25C.        8.75600 KILLOWATTS
          MECHANICAL TIME CONSTANT    AT 25C.       12.08000 MILLISECONDS
          ELECTRICAL TIME CONSTANT    AT 25C.       12.85000 MILLISECONDS
          MOTOR CONSTANT              AT 25C.       33.59000 LBIN/SQRT.WATT
          VISC.DAMP.(O. Z SOURCE)     AT 25C.      127.50000 LB IN/RAD/SEC.
          THEOR.ACCEL. AT PEAK TORQUE             2041.00000 RAD/SEC/SEC
          TORQUE RIPPLE                              1.00000 PERCENT
                                                    54.00000 CYCLES/REV.

THERMAL
          MAXIMUM AMBIENT TEMPERATURE               40.00000 DEG. C
          INSULATION CLASS                           H
          THERMAL TIME CONSTANT                    130.00000 MINUTES *
          TENV THERMAL RESISTANCE     STALL          0.25800 DEG.C/WATT *
WINDING      (SPEC. NO. 26182)
          TORQUE CONSTANT             AT 25C.       10.22000 LB.IN./AMP *
          VOLTAGE CONSTANT            AT 25C.        1.15500 VOLT SEC/RAD *
          ARM.RESISTANCE LESS BRUSHES AT 25C.        0.09200 OHMS *
          ARM.INDUCTANCE                             1.19000 MILLIHENRYS *
          MAX.TERMINAL VOLTAGE                     200.00000 VOLTS
          MAX.SPEED                               1650.00000 RPM
          VOLT AT PEAK TORQUE         AT 25C.       28.47000 VOLT
          AMPS.AT PEAK TORQUE         AT 25C.      307.50000 AMPS
          DAMPING RATIO                              0.48500
          UNDAMPED NATURAL FREQUENCY                80.27000 RAD./SEC.
MECHANICAL
          ARMATURE POLAR MOMENT OF INERTIA           1.54000 LB.IN.SEC.SEC. *
          STATIC FRICTION TORQUE                    11.01000 LB.IN.
          VISC. DAMP.(INF. Z. SOURCE) AT 25C.        0.06400 LB.IN/RAD/SEC.
          MOTOR WEIGHT                             200.00000 POUNDS
TACHOMETER
          VOLTAGE GRADIENT                          20.00000 VOLTS/1000RPM *
                                                     0.19000 VOLT SEC/RAD *
          RIPPLE                                     2.00000 PERCENT
                                                    25.00000 CYCLES/REV
          RESISTANCE                  AT 25C.      111.00000 OHMS *
          INDUCTANCE                                27.00000 MILLIHENRYS *
          MINIMUM LOAD RESISTANCE                10000.00000 OHMS
____________________________________________________________________________
          *TOLERANCE PLUS OR MINUS 10 PERCENT

      PEERLESS-WINSMITH, INC.   ION-WARREN WORKS   WARREN, OHIO
      1401 WEST MARKET STREET - WARREN, OHIO 44485

      DATE 3-9-81     PREPARED BY MSM    SHEET 1 OF 1     K-9280