8
Operating manual TwinSpin
®
G series reducers
** Screw material 10K
Tightening torques of screws
Screw
Tightening torque [Nm]
Clamping force [N]
Screw material class and specification
M3
1,9 / 2.2
3 100 / 3 700
10.9 / 12.9K*
*10K / 12K
R
m
= 1 000 / 1 200 MPa - min. tensile strength of screw material
R
p0.2
= 900 / 1 080 MPa - min. yield strengths
M4
4.3 / 5.1
5 300 / 6400
M5
8.4 / 10.2
8 800 / 10 600
M6
14 / 17
12 400 / 14 900
M8
35 / 42
22 750 / 27 300
M10
70 / 85
36 200 / 43 500
M12
122 / 147
52 900 / 63 500
Allowable torques transmitted through connecting screws
Size
On the output flange
On the case / main ring
Number x screw
Pitch diameter
[mm]
Transmitted torque
[Nm]
Number x screw
Pitch diameter
[mm]
Transmitted torque
[Nm]
TS 75
12xM5
38
360
18xM3
69
340
TS 85
12xM5
50
470
18xM3
81
400
TS 95
18xM4
53
450
18xM4
88
760
TS 115
18xM5
68
970
18xM4
108
930
TS 125
18xM6
71
1 190
18xM5
116
1 380
TS 155**
18xM8
96
2 950
28xM5
146
2 670
TS 185**
24xM8
119
4 870
30xM6
177
4 940
TS 225**
32xM8
156
8 500
21xM8
207
7 400
•
For the safe transmission of external loads applied to the reducers, it is required to use connecting screws of at least 10.9 grade
and to degrease contact surfaces of friction joints before the installation. Tightening torques of screws are shown in the table
below.
•
Allowable torques transmitted through connecting screws on flange and case are shown in the table below.
4.4 Tightening torque
4.5 Assembly procedures
•
Please note that this procedures are concerning assembly of fully sealed reducers only.
•
Always use protective aids when assembling reducer to motor.
C
