SUNWARD SWE80B - Tightening Torque Specification; Tightening Torque Table for Bolts and Nuts

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5.3 TIGHTENING TORQUE SPECIFICATION
Note
 If nuts, bolts, or other parts are not tightened to the specified torque, it will cause looseness or
damage to the tightened parts, and this will cause failure of the machine or problems with
operation.
5.3.1 Tightening Torque Table for Bolts and Nuts
Thre
ad
diam
eter
(mm)
Acro
ss
flat
s(mm
)
Tightening torque
Target value
Service limit
N• m
kgf• m
lbft
N• m
kgf• m
lbft
6
10
13.2
1.35
9.8
11.8 - 14.7
1.2 - 1.5
8.7 - 10.8
8
13
31
3.2
23.1
27 - 34
2.8 - 3.5
20.3 - 25.3
10
17
66
6.7
48.5
59 - 74
6.0 - 7.5
43.4 - 54.2
12
19
11
11.5
83.2
98 - 123
10.0 - 12.5
72.3 - 90.4
14
22
177
18
130.2
157 - 196
16.0 - 20.0
115.7 - 144.7
16
24
279
28.5
206.1
245 - 309
25.0 - 31.5
180.8 - 227.8
18
27
382
39
282.1
343 - 425
35.0 - 43.5
253.2 - 314.6
20
30
549
56
405.0
490 - 608
50.0 - 62.0
361.7 - 448.4
22
32
745
76
549.7
662 - 829
67.5 - 84.5
488.2 - 611.2
24
36
927
94.5
683.5
824 - 1030
84.0 - 105.0
607.6 - 759.5
27
41
1320
135.0
976.5
1180 - 1470
120.0 - 150.0
868.0 - 1085.0
30
46
1720
175.0
1265.8
1520 - 1910
155.0 - 195.0
1121.1 - 1410.4
33
50
2210
225.0
1627.4
1960 - 2450
200.0 - 250.0
1446.6 - 1808.3
36
55
2750
280.0
2025.2
2450 - 3040
250.0 - 310.0
1808.3 - 2242.2
39
60
3280
335.0
2423.1
2890 - 3630
295.0 - 370.0
2133.7 - 2676.2