ABB IRB 7600 Series Product Manual page 426

7 Reference information
7.4. Screw joints
Continued
Tightening torque
Before tightening any screw, note the following:
The following table specifies the recommended standard tightening torque for oil-lubricated
screws with slotted or cross-recess head screws.
Dimension
M2.5
M3
M4
M5
M6
The following table specifies the recommended standard tightening torque for oil-lubricated
screws with allen head screws.
Dimension
M5
M6
M8
M10
M12
M16
M20
M24
424
工控帮助教小舒QQ2823408167
• Determine whether a standard tightening torque or special torque is to be applied.
The standard torques are specified in the following tables. Any special torques are
specified in the repair, maintenance or installation procedure descriptions. Any
special torque specified overrides the standard torque!
• Use the correct tightening torque for each type of screw joint.
•
Only use correctly calibrated torque keys.
•
Always tighten the joint by hand, and never use pneumatic tools.
•
Use the correct tightening technique, which is do not jerk. Tighten the screw in a slow,
flowing motion.
• Maximum allowed total deviation from the specified value is 10%!
Tightening torque (Nm)
Class 4.8, oil-lubricated
0.25
0.5
1.2
2.5
5.0
Tightening torque
(Nm)
Class 8.8, oil-lubri-
cated
6
10
24
47
82
200
725
Tightening torque Tightening torque
(Nm) (Nm)
Class 10.9, oil-lubri- Class 12.9, oil-lubri-
cated cated
- -
- -
34 40
67 80
115 140
290 340
550
960 1150
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3HAC022033-001 Revision: K