Nominal
thread di‐
ameter
Bolt
strength
class
Preload force for bolt connection
classes from the table in chapter
Bolt connection classes (Page 74).
Tightening torque for bolt connection
classes from the table in chapter Bolt
connection classes (Page 74)
d
mm
C D E C D E
F
M min.
N
M
A
Nm
M72x6 8.8 944 000 604 000 378 000 15 500 13 400 11 900
10.9 1 340 000 856 000 535 000 22 000 18 900 16 900
12.9 1 570 000 1 000 000 628 000 25 800 22 200 19 800
M80x6 8.8 1 190 000 760 000 475 000 21 500 18 500 16 500
10.9 1 690 000 1 100 000 675 000 30 500 26 400 23 400
12.9 1 980 000 1 360 000 790 000 35 700 31 400 27 400
M90x6 8.8 1 510 000 968 000 605 000 30 600 26 300 23 500
10.9 2 150 000 1 380 000 860 000 43 500 37 500 33 400
12.9 2 520 000 1 600 000 1 010 000 51 000 43 800 39 200
M100x6 8.8 1 880 000 1 200 000 750 000 42 100 36 200 32 300
10.9 2 670 000 1 710 000 1 070 000 60 000 51 600 46 100
12.9 3 130 000 2 000 000 1 250 000 70 000 60 400 53 900
5.7 Final work
Measures
Once all the components have been assembled or connected, perform the following final work:
● Check whether all devices dismantled for transportation have been reassembled.
● Check all bolt connections for tightness after installation of the gear unit has been
completed.
● Check the alignment after tightening the fastening elements. The alignment must not have
changed in any way.
● Lock the oil drain valves against accidental opening.
● Protect the gear unit against falling objects.
● Check that the guards over rotating parts are securely fastened.
Contact (accidental or deliberate) with rotating parts is not permitted.
● Perform potential equalisation in accordance with the applicable regulations and guidelines.
If no threaded holes are available on the gear unit for an earth connection, please take
suitable alternative measures. This work must always be done by specialist electricians.
● Protect the cable entries against penetrating moisture.
Further information
Further information about the gear unit and all assembled elements can be found in the
operating instructions for assembled elements in the complete documentation for the gear unit.
Assembly
5.7 Final work
Gear unit 5118en
76 Operating Instructions 10/2017
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