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Right-Angle Gearbox - Electrocraft - #9

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Text version of the page
G640 Series Performance Specifications
Motor Ratings
642
643
644
Continuous Stall Torque (Ncm)
70.6
116.5
148.3
Continuous Stall Torque (oz-in)
100
165
210
Peak Torque (Ncm)
339.0
547.3
678.0
Peak Torque (oz-in)
480
775
960
Maximum Terminal Voltage (V)
90
90
90
Maximum Operating Speed (rpm)
4500
4500
4500
Mechancial Data
Rotor Inertia (kg cmA2)
1.342
2.118
2.613
Rotor Inertia (oz-in-secA2)
0.0190
0.0300
0.0370
Damping Constant (Ncm/krpm)
1.059
1.765
2.472
Damping Constant (oz-in/krpm)
1.50
2.50
3.50
Thermal Resistance (C/watt)
2.7
2.2
1.9
Maximum Armature Temperature ( C)
155
155
155
Maximum Friction Torque (Ncm)
5.6
5.6
5.6
Maximum Friction Torque (oz-in)
8
8
8
Maximum Radial Load (25mm from bearing) (Kg)
13.6
13.6
13.6
Maximum Radial Load (25mm from bearing) (lbs)
30
30
30
Weight (Kg)
3.6
4.8
5.4
Weight (lbs)
8
10.5
12
Electrical Data
A
B
C
A
B
Kt Torque Constant +-10% (Ncm/amp)
8.3
10.5
16.7
11.8
15.1
23.7
12.0
15.4
30.9
Kt Torque Constant +-10% (oz-in/amp)
11.8
14.9
23.6
16.7
21.4
33.5
17.0
21.8
43.7
Ke Voltage Constant +-10% (V/Krpm)
8.7
11.0
17.5
12.4
15.9
24.8
12.6
16.2
32.4
Terminal Resistance (ohms)
0.5
0.7
1.5
0.5
0.7
1.5
0.4
0.5
1.7
Maximum Continuous Current (A)
8.5
6.7
4.2
9.9
7.7
4.9
12.3
9.6
4.8
Maximum Peak Current (A)
44
35
22
50
40
26
60
48
24
Armature Inductance (mH)
0.5
0.8
2.0
0.5
0.8
2.0
0.5
0.8
3.3
Tachometer Specifications (optonal)
T1
T2
T3
T4
Ke Voltage Constant +-10% (V/Krpm)
3
7
14
21
Terminal Resistance (ohms)
38
50
95
180
Ripple Peak-to-Peak at 1000 rpm (%)
5
5
5
5
Increase Motor Inertia by: (kg cmA2)
0.141
0.141
0.141
0.141
Increase Motor Inertia by: (oz-in-secA2)
0.002
0.002
0.002
0.002
0 2
(3) M4 X 0.7-6H X 8 MM DP MIN EQ SP ON ô 72.0
MOTOR TACHOMETER OPTIONS SHOWN: METRIC MOUNTING, PG GLAND LEAD LENGTH (800 (31.5' STD)
(2) 4-40 UNC-2B X 0.38 DP MIN
EQ SP ON 1.812 DIA
1/4-20UNC-2B THRU (4) EQ SP ON A 3.750 DIA
642T = 6.23-
643T = 7.79-iUc 644T = 8.79 W
1.282
0.70
0.4998 DIA_ 0.49951
3.25 DIA
0.5000
Г0.4997 DIA
©
©
1/4" X 1/4" X 3/4" KEYWAY
MOTOR TACHOMETER OPTIONS SHOWN: NEMA MOUNTING(42C), PG GLAND LEAD LENGTH (24" STD)
3.25 DIA 3.20 DIA
1/4" X 1/4" X 1.0" KEYWAY
71 CONNECTOR: 1/2" CONDUIT
MOTOR TACHOMETER OPTIONS SHOWN: SQUARE MOUNTING, JUNCTION BOX, SEALED
G642
G643
TORQUE (OZ-IN)
G644
TORQUE (OZ-IN)
TORQUE (OZ-IN)
TORQUE (Nm)
TORQUE (Nm)
TORQUE (Nm)
960
600 I-
800
0.5
800
500
640
2.5
0.4
640
2.0
480
INTERMITTENT^^^^^
OPERATING REGION
480
1.5
320
0.2
320
200
0.5
CONTINUOUS OPERATING REGION
2000 3000
SPEED (RPM)
2000 3000 SPEED (RPM)
5000
2000 3000 SPEED (RPM)
5000
7
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