Appendix
premo
en-27
4022-D045530
Revision: 02
9.2
Specifications for mounting on the output side
9.2.1 Thread in output flange, premo TP line
9.3
Tightening torques for common thread sizes in general mechanical engineering
The specified tightening torques for set screws and nuts are calculated values and are based on
the following conditions:
- Calculation in accordance with VDI 2230 (February 2003 version)
- Friction value for thread and contact surfaces µ=0.10
- Utilization of the yield stress 90%
- Torque tools type II classes A and D in accordance with ISO 6789
The settings are values rounded to usual commercial scale gradations or setting possibilities.
Use the
exact
values in this table to set your tools.
Type/Size
Hole circle Ø
[mm]
Quantity x Thread
x Depth
[ ] x [mm] x [mm]
Tightening torque
[Nm]
Property class 12.9
Size 1
31.5
8 x M5 x 7
9.0
Size 2
50.0
8 x M6 x 10
15.4
Size 3
63.0
12 x M6 x 12
15.4
Tbl-14: Thread in output flange, premo TP line
Tightening torque [Nm] with thread
Property
class
screw / nut
M3
M4
M5
M6
M8 M10 M12 M14 M16 M18 M20 M22 M24
8.8 / 8
1.15 2.64 5.2
9.0 21.5 42.5 73.5 118 180 258 362 495
625
10.9 / 10
1.68 3.88 7.6 13.2 32.0 62.5 108 173 264 368 520 700
890
12.9 / 12
1.97 4.55 9.0 15.4 37.5 73.5 126 202 310 430 605 820 1040
Tbl-15: Tightening torques for set screws and nuts
