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Motorized Cable Reel Technical Manual
September 2021
17.2 Tightening torques
17.2.1 Gear plate
17.2.2 Reel flange Nord-Lock
®
wedge-locking washers
Thread Size
Tightening Torque (Nm)
Strength Class 8.8
Strength Class 10.9
M 10
46
68
M 12
80
117
M 14
135
190
M 16
194
285
M 20
391
557
M 24
675
960
M 30
1,450
2,100
M 36
2,528
3,700
Thread Size
ö
l, G
F
= 71%
µ
th
= 0.15, µ
h
= 0.13
CU/C – Paste = 75%
µ
th
= 0.13, µ
h
= 0.14
Torque (Nm)
Preloading (kN)
Torque (Nm)
Preloading (kN)
M 8
37
23
37
25
M 10
73
37
73
39
M 12
126
54
126
57
M 14
201
74
201
78
M 16
307
100
306
106
M 18
430
123
429
130
M 20
602
126
600
165
M 22
821
194
818
205
M 24
1,036
225
1,034
238
CU/C – Paste
Copper/graphite paste (Molykote
®
100
ö
L
WD40
G
F
Preloading degree
?
th
Thread friction coefficient
µ
h
Underhead friction coefficient