SIEMENS
6/24
Siemens MD 50.8 · 2017
Motor options
Mounted components
Brake
6
■
Overview
SIMOGEAR geared motors can be supplied with spring-
operated disk brakes in order to reduce the motor run-on time or
to hold loads, for example.
Our MODULOG modular system allows several brake sizes to
be used with one motor frame size. This chapter specifies the
assignment to the motor frame sizes and possible brake options.
■
Design and principle of operation
Single-disk, spring-operated brakes have two friction surfaces.
When the brake is in a zero current state, a braking torque is
generated using several springs.
The brake is released electromagnetically. When the motor
brakes, the rotor which can be axially shifted on the hub or the
shaft is pressed via the armature disk against the friction surface
by means of the springs. In the braked state, there is a gap
between the armature disk and the solenoid assembly.
To release the brake, the solenoid is energized with DC voltage.
The resulting magnetic force attracts the armature disk onto the
solenoid assembly against the spring force.
The spring force is then no longer applied to the rotor, which can
now rotate freely.
Fig. 6/32
Brake L
■
Selecting the brake
Our MODULOG modular system allows several brake sizes to
be used with one motor frame size.
Brake assignment
Gap
Solenoid
assembly
Shaft
Pressure
springs
Axially shiftable
rotor
Hub
Armature disk
Friction surface
Pressure
springs
G_D087_EN_00145a
S
Brake type
Braking
torque
Motor frame size
Order code
Nm
63
71
80
90
100
112
132
L4/1.4
1.4
❍
❍
❍
B01
L4/2
2
❍
❍
❍
B02
L4/3
3
❍
❍
❍
B03
L4
4
❏
❏
❍
B00
L4/5
5
❍
❍
❍
B57
L8/3
3
❍
❍
❍
B05
L8/4
4
❍
❍
❍
B06
L8/5
5
❍
❍
❍
B07
L8/6.3
6.3
❍
❍
❍
B08
L8
8
❍
❏
❍
B04
L8/10
10
❍
❍
❍
B09
L16/8
8
❍
❍
❍
B14
L16/10
10
❍
❍
❍
B11
L16/13
13
❍
❍
❍
B12
L16
16
●
❏
❍
B10
L16/20
20
❍
❍
B13
L32/14
14
❍
❍
❍
B66
L32/18
18
❍
❍
❍
B16
L32/23
23
❍
❍
❍
B17
L32
32
❍
❏
❏
B15
L32/40
40
❍
❍
B18
L60/25
25
❍
❍
B67
L60/38
38
❍
❍
B20
L60/50
50
❍
❍
B21
L60
60
❍
B19
L80/25
25
❍
B24
L80/35
35
❍
B25
L80/50
50
❍
B26
L80/63
63
❍
B27
L80
80
❏
B22
L80/100
100
❍
B23
L150/60
60
❍
B31
L150/80
80
❍
B32
L150/100
100
❍
B29
L150/125
125
❍
B30
L150
150
❍
B28
❏
Standard assignment
❍
Working brake and holding brake
●
Can only be used as holding brake
© Siemens AG 2017