Checking The Tightness Of Fastening Bolts - Siemens SINAMICS G115D Operating Instructions Manual

Additional information on the SIMOGEAR geared motor
11.2 Specific data motor
Vertical mounting position (IM V.)
Table 11- 19 Grease service life in operating hours [h] with permanent lubrication
Frame size Motor speed n
71
80
90
100
112
132
11.2.18

Checking the tightness of fastening bolts

Note
Replace damaged headless bolts with new bolts of the same type and strength class.
Switch off the power supply to the drive unit. Check all fastening bolts for tightness using a
torque wrench.
The general tolerance for the tightening torque in Nm is 10 %. The friction coefficient is
0.14 μ.
Table 11- 20 Tightening torques for fastening bolts
Thread size
M4
M5
M6
M8
M10
M12
M16
M20
M24
M30
M36
392
[rpm]
N
3 600 3000 1800
Operating hours [h]
24000 33000 33000
24000
17000
17000 24000
12000
Tightening torque for strength class
8.8
[Nm]
3
6
10
25
50
90
210
450
750
1 500
2 500
1500 1200 ≤ 1 000
33000 33000 33000
24000
10.9
[Nm]
4
9
15
35
70
120
295
580
1 000
2 000
3 600
Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
Grease quantity in
the bearing
D-end ND-end
[g]
9 9
15 11
20 15
45 25
75 50
12.9
[Nm]
5
10
18
41
85
145
355
690
1 200
2 400
4 200
SINAMICS G115D distributed drive