ABB OmniCore IRB 6720, Product Manual

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Tightening torque (Nm)
Class 12.9, oil-lubric-
ated Tightening torque (Nm)
Class 10.9, oil-lubric-
ated Tightening torque (Nm)
Class 8.8, oil-lubricated Dimension
140 115 82 M12
340 290 200 M16
670 560 400 M20
1150 960 680 M24
Tightening torque for lubricated screws (Molykote, Gleitmo or equivalent) with allen head screws
The following table specifies the recommended standard tightening torque for
screws lubricated with Molycote 1000, Gleitmo 603 or equivalent with allen head
screws.
Note
A special torque specified in the repair, maintenance or installation procedure
overrides the standard torque.
Tightening torque (Nm)
Class 12.9, lubricated
i
Tightening torque (Nm)
Class 10.9, lubricated
i
Dimension
8 M5
14 M6
35 28 M8
70 55 M10
120 96 M12
300 235 M16
550 460 M20
950 790 M24
i
Lubricated with Molycote 1000, Gleitmo 603 or equivalent
Water and air connectors
The following table specifies the recommended standard tightening torque for
water and air connectors .
Note
A special torque specified in the repair, maintenance or installation procedure
overrides the standard torque.
Tightening torque
Nm - Max. Tightening torque
Nm - Min. Tightening torque
Nm - Nominal Material Dimension
The lower tightening torque of the two materials. Mixed ALL
15 8 12 Brass only 1/8
20 10 15 Brass only 1/4
25 15 20 Brass only 3/8
50 30 40 Brass only 1/2
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626 Product manual - IRB 6720
3HAC085697-001 Revision: C
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9 Reference information
9.4 Screw joints
Continued