MGM
23
BA series motors are provided as standard with a brake torque set to 60 - 70% of the maximum admissible brake
torque indicated on the nameplate. On request the motor can come already set to a specific brake torque value different
from the standard one. The brake torque is shown in the diagrams here below as a function of the brake assembly
spring compression; for BA250-280 motors pls contact MGM. The shown values refer to BA series motors mounted in
horizontal position with an AC brake coil. DC brakes have the same trend as AC brakes even if they have lower brake
torque, as shown in the table below. For BAK 100-132 motors series the brake torque changes in a different way than
shown in the diagrams. Please contact MGM for further information. The values shown in the diagrams are only
indicative as application conditions, brake lining wear and temperature, can affect the real brake torque. Whenever it is
necessary to adjust the braking torque to a specific value it is advisable to directly measure the obtained brake torque
after each brake torque adjustment. Consider that the motor mounting position influences remarkably the effective
braking torque when low brake torque values are involved. Please contact MGM for further information.
Brake torque and brake spring compression
BA series
BA 90
BA 80
0
2
4
6
8
10
12
14
16
16,5
15,5
14,5
13,5
12,5
11,5
mm
Nm
0
2
4
6
8
10
12
14
16
16,5
15,5
14,5
13,5
12,5
11,5
18
20
mm
Nm
BA 132
BA 112
BA 100
0
10
20
30
40
50
60
70
80
19
18.1
17.2
16.3
15.4
mm
90
14.5
Nm
mm
0
5
10
15
20
25
30
35
40
19
18
17
16
15
Nm
0
10
19
18
17
16
15
14
60
mm
Nm
20
30
40
50
BA 225
BA 180-200
BA 160
0
20
40
60
80
100
120
140
160
18.6
18.1
17.5
17
16.4
mm
Nm
H
BA 71
mm
Nm
0
50
100
150
200
250
300
350
400
39,6
450
38,2
36,8
35,4
34
32,6 31,2
mm
Nm
40
23,2
22
20,8 19,6 18,4 17,2
16
60
80
100
120
140
160
180
50
41
38
35
32
29
mm
26
300
Nm
250
200
150
100
Light blue line:
6 springs brake group
Blue line:
3 springs brake group
Consider that DC brake groups always have 3 springs and 155 Nm
max. brake torque.
Light blue line:
6 springs brake group
Blue line:
3 springs brake group
Consider that DC brake groups always have 3 springs and 180
Nm max. brake torque.
Light blue line:
6 springs brake group
Blue line:
3 springs brake group
Consider that DC brake groups always have 3 springs and 240 Nm
max. brake torque.
29,8
Frame size
Max AC Brake Torque (Nm):
Max DC Brake Torque (Nm):
71
14
9
80
18
15
90
38
30
100
50
42
112
80
60
132
150
120
160
190
155
180
300
180
200
300
180
225
400
240
250
700
-
280
1000
-