0-5
InTroDuCTIon
DangEr
Suspension of a load from a single rope could cause the load to start rotating and consequently cause the rope
strands to untwist or the load to slip; this could lead to serious injury.
l
Never lift a heavy load when the two legs of the ropes form a wide angle. the permitted load (kg) decreases in inverse propor
-
tion to the angle of suspension; the table below indicates how the permitted load varies according to the angle of suspension
for two Ø 10 mm ropes each with a load capacity of 1000 kg.
Fig. 1
0.1.5 - Tightening torques
bolts and nuts
DangEr
The tightening torques for certain specific components and special tightening methods are indicated in the relative
assembly paragraphs.
The tightening torques indicated below refer to screws and nuts assembled without lubrication and, where applicable, with anaerobic
threadlocking compound. the values apply to tightening on steel or cast iron components; for soft materials such as aluminium, cop
-
per, plastic, sheet metal or panels, the indicated tightening torques must be reduced by 50%.
Table 2
bolT sIZE
bolT Class
8.8
10.9
12.9
Nm
lb.ft.
Nm
lb.ft.
Nm
lb.ft.
M6x1
8.0 – 8.8
5.9 – 6.5
11.8 – 13.0
8.7 – 9.6
13.8 – 15.2
10.2 – 11.2
M8x1.25
19.4 – 21.4
14.3 – 15.8
28.5 – 31.5
21.0 – 23.2
33.3 – 36.9
24.5 – 27.2
M10x1.5
38.4 – 42.4
28.3 – 31.2
56.4 – 62.4
41.6 – 46.0
67.4 – 74.4
49.7 – 54.8
M12x1.75
66.5 – 73.5
49.0 – 54.2
96.9 – 107
71.4 – 78.9
115 – 128
84.8 – 94.3
M14x2
106 – 117
78.1 – 86.2
156 – 172
115.0 – 126.8
184 – 204
135.6 – 150.3
M16x2
164 – 182
120.9 – 134.1
241 – 267
117.6 – 196.8
282 – 312
207.8 – 229.9
M18x2.5
228 – 252
168.0 – 185.7
334 – 370
246.2 – 272.7
391 – 432
288.2 – 318.4
M20x2.5
321 – 355
236.6 – 261.6
472 – 522
347.9 – 384.7
553 – 611
407.6 – 450.3
M22x2.5
441 – 487
325.0 – 358.9
647 – 715
476.8 – 527.0
751 – 830
553.5 – 611.7
M24x3
553 – 611
407.6 – 450.3
812 – 898
598.4 – 661.8
950 – 1050
700.2 – 773.9
M27x3
816 – 902
601.4 – 664.8
1198 – 1324
882.9 – 975.8
1419 – 1569
1045.8 – 1156.4
Summary of Contents for R7.190 DCR
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