FLENDER K.SH - Bolt Connection Classes; Tightening Torques and Preload Forces; Table 5-1 Information on Tightening Fastening Bolts

Assembly
5.6 Tightening procedure
76 Edition 06/2022 A5850-02en
Information
Using a lubricant
As a rule, lubricants may not be used, because this can result in the bolt connection becom-
ing overloaded.
5.6.2 Bolt connection classes5.6 Tightening procedure
In order to affix fastening bolts, note the information in the following table:
Mounting Bolt connection
class
Scatter of the
torque emitted on
the tool
Tightening procedure
Gear unit
Motor
Brake
Torque arm
C ±5% to ±10% • Hydraulic tightening with mech-
anical screwdriver
• Torque-controlled tightening with
a torque wrench or a signal-emit-
ting torque wrench
• Tightening with a precision
mechanical screwdriver with dy-
namic torque measurement
D ±10% to ±20% • Torque-controlled tightening with
mechanical screwdriver
Protection cover
Sun shield
Inspection cover
E ±20% to ±50% • Tightening with pulse screw-
driver or impact wrench, without
adjustment checking device
• Tightening by hand, using a
wrench without torque measur-
ing device
Table5-1: Information on tightening fastening bolts
Further information
You can find additional information about tightening torques when mounting motor and brake
in the operating instructions from the particular manufacturer.
5.6.3 Tightening torques and preload forces5.6 Tightening procedure
The specified bolted connections must be tightened to the torques stated in the table below:
The tightening torques apply to friction values of μ
total
=0.14.
The following table lists the preload forces and tightening torques for bolt connections,
strength classes 8.8; 10.9; 12.9: