SIEMENS
11/56
Siemens MD 50.1 · 2015
Motor options
Mounted components
11
■
Second shaft extension and handwheel
Second shaft extension
For 4-pole motors a free, second shaft extension can be sup-
plied on the non-drive end (NDE). The second shaft extension
has a 60° centering hole to DIN 332, Part 2 with M3 to M24
tapped hole depending on the shaft diameter.
For a coupling output, the second shaft extension can transmit
the full rated power. Please also inquire about the power that can
be transmitted and permissible cantilever force if belt pulleys,
chains, or gear pinions are used on the second shaft extension.
A second shaft extension cannot be provided if a rotary pulse
encoder and/or an external fan has been mounted to the motor.
Fig. 11/45
Second motor shaft extension
Technical specifications
Handwheel
Motors, sizes 71 to 160, can be supplied with a second shaft
extension and additionally with a handwheel.
The handwheel is a disk-type handwheel in accordance with
DIN 3670. By mounting it on the second shaft extension of the
motor, the geared motor can be rotated even when the motor
winding is in a no-voltage state.
Fig. 11/46
Handwheel
Modular system in combination with second shaft extension
Order code:
Second shaft extension
1)
N39
1)
Not possible for worm geared motors S
G_D087_XX_00140
EC
ØDA
EA
FA
GC
EE
DC
Motor size
DA
EA
Distance
between fan
cover and
shaft shoul-
der
DC
EC
EE
FA
GC
63
-
-
-
-
-
-
-
-
71
14
30
4
M5
22
4
5
16.0
80
14
30
4
M5
22
4
5
16.0
90
19
40
5
M6
32
4
6
21.5
100
19
40
5
M6
32
4
6
21.5
112
24
50
6
M8
40
5
8
27.0
132
28
60
8
M10
50
5
8
31.0
160
38
80
8
M12
70
5
10
41.0
180
42
110
15
M16
90
10
12
45.0
200
48
110
20
M16
100
5
14
51.5
225
55
110
5
M20
100
5
5
59.0
250
60
140
5
M20
125
10
10
64.0
Order code:
Handwheel
1)
N40
1)
Not possible for worm geared motors S
G_D087_XX_00121
Modular system
Motor plug
Brake
Backstop
Encoder
Self ventilation
Forced ventilation
Second shaft extension
Without handwheel
✓
✓
✓
-
✓
-
With handwheel
✓
✓
✓
-
✓
-
© Siemens AG 2015