Tightening Torque Values - Elmo Rietschle 2Bh20360-1 Instandsetzungsanleitung

6

Tightening torque values

610.44495.40.310 · 09.2013
Prematic AG, Märwilerstrasse 43, 9556 Affeltrangen www.prematic.ch
Tightening torque values 6
The values apply if no other specifications are available.
Stainless steel screws
Mechanical properties A4-70 according to ISO 3506-1.
Thread
M5
M6
M8
M10
M12
M16
Steel screws
Tightening torques for non-electrical connections for nuts of strength class 8 and
screws of strength class 8.8 according to ISO 898-1.
Thread
M4
M5
M6
M8
M10
M12
M16
* applicable for terminal plate connections, except for terminal strips
Cable and wiring screw connections
Thread
M12x1.5
M16x1.5
M25x1.5
M32x1.5
M40x1.5
Pipe thread according to ISO 228-1, EN 10226-1 and NPT thread
Type
G 2½ / NPT 2½-8
G 3 / NPT 3-8
G 4 / NPT 4-8
[Nm]
2,3 – 2,7
4,2 – 5,0
7,5 – 9,0
18 – 22
35 – 42
58 – 70
Non-electrical
[Nm] [ft lbs]
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4,5 - 5,5 3.32 - 4.06
8,1 - 9,9 5.98 - 7.31
21,6 - 26,4 15.9 – 19.5
37,8 – 46,2 27.9 – 34.1
46.5 - 56.8
63,0 - 77,0
63,0 - 77,0 46.5 - 56.8
Metal
[Nm] [ft lbs]
2.95 – 4.42
4,0 – 6,0
3.69 – 5.53
5,0 – 7,5
4.42 – 6.64
6,0 – 9,0
8,0 – 12 5.90 – 8.85
8,0 – 12 5.90 – 8.85
[Nm]
70 – 110
80 – 130
100 – 165
22 / 60
Tel. 071 918 60 60, Mail: v-g@prematic.ch
[ft lbs]
1.70 – 2.70
3.10 – 3.70
5.55 – 6.65
13.3 – 16.2
25.8 – 31.0
42.8 – 51.6
Electrical*
[Nm] [ft lbs]
0.60 - 0. 90
0,8 - 1,2
1,8 - 2,5 1.35 - 1.85
2,7 - 4,0 2.00 - 3.00
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Plastic
[Nm] [ft lbs]
1.48 – 2.21
2,0 – 3,0
1.48 – 2.21
2,0 – 3,0
1.48 – 2.21
2,0 – 3,0
4,0 – 6,0 2.95 – 4.42
4,0 – 6,0 2.95 – 4.42
[ft lbs]
52 – 81
59 – 96
74 – 121
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