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Assembly and Operating Instructions – Gear Units R..7, F..7, K..7, K..9, S..7, SPIROPLAN® W
4
Installing the gear unit
Mechanical Installation
4.3.1
Tightening torques for retaining screws
Mount the gearmotors with the following tightening torques:
Mount the specified gearmotors in flange-mounted design with the following increased
tightening torques:
Bolt/nut
Tightening torque screw / nut
Strength class 8.8
[Nm]
M6
11
M8
25
M10
48
M12
86
M16
210
M20
410
M24
710
M30
1450
M36
2500
M42
4600
M48
6950
M56
11100
Flange
Gear unit
Bolt/nut
Tightening torque screw / nut
Strength class 10.9
[Nm]
120
RF37 M6
14
140
RF37, RF47
M8
35
160
RF57
M8
35
60ZR
RZ37
M8
35
70ZR
RZ47
M8
35
80ZR
RZ57
M10
69
95ZR
RZ67
M10
69
110ZR
RZ77
M12
120
130ZR
RZ87
M12
120
250
FF77, KF77,
FAF77, KAF77
M12
120
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