Installation
4.5 Gearbox with flange fastening
BA 2030
Operating Instructions, 02/2021, A5E37880173A/RS-AM
33
4.5
Gearbox with flange fastening
Note
Siemens AG recommends an anaerobic adhesive to enhance the friction lock between flange
and mounting surface.
Table 4- 3
Thread size of the fastening bolt
Thread
size
Flange
Helical gearbox
E, D/Z
Parallel shaft
gearbox F
Bevel gearbox
B, K
Helical worm
gearbox C
Size
M6
A120
19, 29, 39
29
B19, B29
29
M8
A140, A160 19, 29, 39, 49, 59
29, 39
B29, B39, K39 29, 39
M10
A200
39, 49, 59, 69
49
B39, B49, K49 49, 69
M12
A250, A300 49, 59, 69, 79, 89,
109
69, 79, 89
K69, K79, K89 89
M16
A350
79, 89, 109, 129,
149
109
K109
-
M16
A450
89, 109, 129, 149,
169
129, 149
K129, K149
-
M16
A550
129, 149, 169, 189 169
K169
-
M20
A660
169, 189
189
K189
-
Use screws / nuts of strength class 8.8 for gearboxes with a flange-mounted design.
Note the following exceptions:
Table 4- 4
Strength class of the fastening bolt for FF/FAF and KF/KAF
Gearbox
size
Flange Strength class for motor size
90
100 112 132 160 180 200 225 250 280 315
39
A160
10.9 10.9 -
-
-
-
-
-
-
-
-
49
A200
8.8
10.9 10.9 10.9 -
-
-
-
-
-
-
69
A250
8.8
8.8
8.8
10.9 -
-
-
-
-
-
-
79
A250
8.8
8.8
8.8
10.9 10.9 -
-
-
-
-
-
89
A300
8.8
10.9 10.9 10.9 10.9 10.9 -
-
-
-
-
109
A350
8.8
8.8
8.8
8.8
10.9 10.9 10.9 10.9 -
-
-
129
A450
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
-
-
-
149
A450
-
8.8
8.8
8.8
8.8
8.8
10.9 10.9 10.9 -
-
169
A550
-
-
8.8
8.8
8.8
10.9 10.9 10.9 10.9 10.9 -
189
A660
-
-
8.8
8.8
8.8
8.8
8.8
8.8
10.9 10.9 10.9
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