SIEMENS
10/46
Siemens MD 50.1 · 2015
Gearbox options
Venting and oil level control
Venting
10
■
Pressure breather valve
Gearboxes from size 39 are supplied with an installed pressure
breather valve; this is suitable for both indoors and outdoors use.
Gearbox sizes 19 and 29 can be operated in mounting positions
M1, M3, M5 and M6 without requiring a pressure breather valve.
For mounting positions M2 and M4, they are equipped with a
pressure breather valve.
Fig. 10/12
Pressure breather valve
Technical specifications
Order code:
Pressure breather valve
G45
Gearbox type
Size
Width
across flats
Thread
Dimen-
sion
h
SW
mm
Helical gearboxes Z
and D
19, 29
12
G 1/8 A
15
39
12
G 1/8 A
15
49 … 79
13
G 1/4 A
15
89 ... 129
17
G 3/8 A
15
149 ... 189
24
G 3/4 A
18
Parallel shaft
gearboxes F
29
12
G 1/8 A
15
39
12
G 1/8 A
15
49 … 79
13
G 1/4 A
15
89 ... 129
17
G 3/8 A
15
149 ... 189
24
G 3/4 A
18
Bevel gearboxes B
19, 29
12
G 1/8 A
15
39
12
G 1/8 A
15
49
13
G 1/4 A
15
Bevel gearboxes K
39
12
G 1/8 A
15
49 … 89
13
G 1/4 A
15
109 ... 129
17
G 3/8 A
15
149 ... 189
24
G 3/4 A
18
Helical worm
gearboxes C
29
12
G 1/8 A
15
39
12
G 1/8 A
15
49 … 89
13
G 1/4 A
15
h
SW
G_D087_XX_00162
© Siemens AG 2015