Brush Type Manual - General Dynamics Global Imaging Technologies

1125V-036
Brush Type DC Motors
Pancake Resolvers >> Brushless Motors >>
(800) 777-3393
BLACK
1.
2.
.125 MAX.
.200
.065
MTG DIM
+.001
.250 -.000
+.000
1.125 -.001
.320 MIN.
2 PL
RED
.063 THRU
C'SK 82° x .150 2 HOLES
EQ. SP. ON .938 B.C.
.125
.360
Brush Type DC Motors
Size Constants:
(all values at 25° C ambient temperature)
Units Symbol Value
Peak Torque, stalled @Vp: oz-in Tp 4
Power I 2 R @Tp: watts P 78
Continuous Stall Torque oz-in Tcs 0.43
Motor Constant oz-in/ W Km 0.45
Electrical Time Constant ms Te 0.12
Mechanical Time Constant ms Tm 47.02
Damping Factor (zero impedance) oz-in/(rad/sec) Fo 0.001
Break Away Torque oz-in Tf 0.25
Rotor Inertia oz-in-sec 2 Jm 0.000068
Theoretical Acceleration @ Tp rad/sec 2 t 58824
Ripple Frequency cycles/rev f R 13
Ripple Torque % (ave to peak) T R 10
Theoretical No Load Speed @ Tp rad/sec NLT 2638
Weight oz WT 0.8
Maximum Allowable Temperature °C (at winding) Temp. 155
Thermal Resistence °C/W tpr 45.0
Winding Constants
22
NOTES:
NOTES:
1. LEADS: #28 AWG
TYPE "ET" TEFLON
1. LEADS: #28 AWG TYPE
COATED PER
"ET" TEFLON COATED
MIL-W-16878,
12”
PER
MINIMUM
MIL-W-16878,
LENGTH.
12”
MINIMUM LENGTH.
2. 2. MOTOR MOTOR ROTATE TO ROTATE
CW
CW
VIEWED
VIEWED
FROM
FROM
BRUSH
BRUSH
END
END
WITH
WITH
POSITIVE VOLTAGE
POSITIVE VOLTAGE
APPLIED TO RED
APPLIED TO RED
LEADWIRE WITH
LEADWIRE WITH
RESPECT TO THE
RESPECT TO THE
BLACK.
BLACK.
(all values at 25° C ambient temperature)
Units TOL. Symbol -011 -042 -098
Resistance ohms +/-12.5% R 1.27 4.68 10.9
Inductance mH +/-30% L 0.15 0.57 1.32
Torque Sensitivity oz-in/A +/-10% Kt 0.51 0.98 1.5
Back EMF Constant: V/(rad/sec) +/-10% Kb 0.004 0.007 0.011
Peak Voltage @ Tp Volts Nominal Vp 10.0 19.1 29.1
Peak Current @ Tp Amps Nominal Ip 7.84 4.08 2.67
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