Moteurs .pdf

GM9236S019
Lo-Cog® DC Servo Gearmotor

Assembly Data

Symbol

Units

E
SNL
TC
TPK
WM

V
rpm (rad/s)
oz-in (N-m)
oz-in (N-m)
oz (g)

KT
KE
RT
L
INL
IP
KM
TF
JM
τE
τM
D
KD
θMAX
RTH
τTH

oz-in/A (N-m/A)
V/krpm (V/rad/s)
Ω
mH
A
A
oz-in/√W (N-m/√W)

Reference Voltage
No-Load Speed
Continuous Torque (Max.)1
Peak Torque (Stall)2
Weight

Value
(24.7)
(1.1E+00)
(6.1E+00)
(661)

3.25
2.40

(2.29E-02)
(2.29E-02)

Motor Data
Torque Constant
Back-EMF Constant
Resistance
Inductance
No-Load Current
Peak Current (Stall)2
Motor Constant
Friction Torque
Rotor Inertia
Electrical Time Constant
Mechanical Time Constant
Viscous Damping
Damping Constant
Maximum Winding Temperature
Thermal Impedance
Thermal Time Constant

Included
Features

12
236
153
860
23.3

0.71
0.66
0.33
16.9
4.11
(2.90E-02)
0.80
(5.6E-03)
1.0E-03
(7.1E-06)

oz-in (N-m)
oz-in-s2 (kg-m2)
ms
ms
oz-in/krpm (N-m-s)
oz-in/krpm (N-m-s)
ºF (ºC)
ºF/watt (ºC/watt)
min

2-Pole Stator
Ceramic Magnets
Heavy-Guage Steel Housing
7-Slot Armature
Silicon Steel Laminations
Stainless Steel Shaft
Copper-Graphite Brushes
Diamond Turned Commutator
Motor Ball Bearings
Output Ball Bearing
Wide Face Gears

1.06
8.5
0.053
12.5
311
56.3

Customization
Options

(3.5E-06)
(8.5E-04)
(155)
(13.5)

Alternate Winding
Sleeve or Ball Bearings
Modified Output Shaft
Custom Cable Assembly
Special Brushes
EMI/RFI Suppression
Alternate Gear Material
Special Lubricant
Optional Encoder
Fail-Safe Brake

13.5

Gearbox Data
Reduction Ratio
Efficiency3

19.7
0.84

Maximum Allowable Torque

oz-in (N-m)

500

(3.53)

Encoder Data
Channels
Resolution

3
500

CPR

1 - Specified at max. winding temperature at 25ºC ambient without heat sink. 2 - Theoretical values supplied for reference only.
3 - Effective gearbox efficiency for this unit improved by use of ball bearings.

Speed

Power & Efficiency vs. Torque
20

48

64

225

18

42

56

200

16

36

48

175

14

150

12

30

40

125

10

24

32

100

8

18

24

75

6

12

16

50

4

25

2

6

8

0

0
1000

0

0

200

400

600

800

Output Power (W)

250

Current (Amps)

Speed (rpm)

Output Power
Efficiency

Current

0

200

Torque (oz-in)

All values are nominal. Specifications subject to change without notice. Graphs are shown for reference only.

400

600

800

Efficiency (%)

Speed & Current vs. Torque

0
1000

Torque (oz-in)

© 2001 Pittman.

PITTMAN, 343 Godshall Drive, Harleysville, PA 19438, Phone: 877-PITTMAN, Fax: 215-256-1338, E-mail: info@pittmannet.com, Web Site: www.pittmannet.com

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