3.8
AKM7
Technical data
Data
Symbol
[Unit]
AKM
72K
72M
72P
73M
73P
74L
74P
Electrical data
Standstill torque*
M
0
[Nm]
29,7 30,0 29,4 42,0 41,6 53,0 52,5
Standstill current
I
0rms
[A]
9,3
13,0 18,7 13,6 19,5 12,9 18,5
max. Mains voltage
U
N
[VAC]
480
U
=
75VDC
Rated speed
n
n
[min
-1
]
—
—
—
—
—
—
—
Rated torque*
M
n
[Nm]
—
—
—
—
—
—
—
Rated power
P
n
[kW]
—
—
—
—
—
—
—
U
N
=
115V
Rated speed
n
n
[min
-1
]
—
—
—
—
—
—
—
Rated torque*
M
n
[Nm]
—
—
—
—
—
—
—
Rated power
P
n
[kW]
—
—
—
—
—
—
—
U
N
=
230V
Rated speed
n
n
[min
-1
]
—
—
1800
—
1300
—
—
Rated torque*
M
n
[Nm]
—
—
23,8
—
34,7
—
—
Rated power
P
n
[kW]
—
—
4,49
—
4,72
—
—
U
N
=
400V
Rated speed
n
n
[min
-1
]
1500 2000 3000 1500 2400 1200 1800
Rated torque*
M
n
[Nm]
25,1 23,6 20,1 33,8 28,5 43,5 39,6
Rated power
P
n
[kW]
3,94 4,94 6,31 5,31 7,16 5,47 7,46
U
N
=
480V
Rated speed
n
n
[min
-1
]
1800 2500 3500 1800 2800 1400 2000
Rated torque*
M
n
[Nm]
24,0 22,1 18,2 32,1 26,3 41,5 35,9
Rated power
P
n
[kW]
4,52 5,79 6,67 6,05 7,71 6,08 7,52
Peak current
I
0max
[A]
27,8 38,9 56,1 40,8 58,6 38,7 55,5
Peak torque
M
0max
[Nm]
79,2 79,7 78,5
113
111
143
142
Torque constant
K
Trms
[Nm/A]
3,23 2,33 1,58 3,10 2,13 4,14 2,84
Voltage constant
K
Erms
[mVmin] 208
150
102
200
137
266
183
Winding resistance Ph-Ph
R
25
[
W
]
1,22 0,64 0,33 0,68 0,35 0,85 0,43
Winding inductance Ph-Ph
L [mH]
20,7 10,8
5,0
12,4
5,9
16,4
7,7
Mechanical data
Rotor moment of inertia
J [kgcm²]
65
92
120
Pole number
10
10
10
Static friction torque
M
R
[Nm]
0,16
0,24
0,33
Thermal time constant
t
TH
[min]
46
53
60
Weight standard
G [kg]
19,7
26,7
33,6
Radial load permitted at shaft
end @ 1000 min
-1
F
R
[N]
1300
Axial load permitted at shaft
end @ 1000 min
-1
F
A
[N]
500
* reference flange Aluminium 457mm * 457mm * 12,7mm
Brake data
Data
Symbol [Unit]
Value
Holding torque @ 120°C
M
BR
[Nm]
53
Operating voltage
U
BR
[VDC]
24
±
10 %
electrical power
P
BR
[W]
35,6
Moment of inertia
J
BR
[kgcm²]
1,64
Release delay time
t
BRH
[ms]
110
Application delay time
t
BRL
[ms]
35
Weight of the brake
G
BR
[kg]
2,1
Typical backlash
[ °mech.]
0,2
36
Servomotors AKM
Technical Data
05/2006
Kollmorgen