IAI America ZR-M - Manual (Page 33)

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9.4 Installation of User Components
Tapped holes are provided on the side faces of the unit for installing user components. [Refer to 1, "Names
of the Part."] Use these holes to install brackets for jigs or sensors provided by the user.
[For the detailed dimensions, refer to 2, "External Dimensions."]
Type
Tap
size
Effective depth
* Recommended tightening torque
Bearing surface: Aluminum
* Recommended tightening torque
Bearing surface: Steel
ZR-S
ZR-M
M4 12 mm 176 N cm {18.0 kgfcm} 359 N cm {36.7 kgfcm}
* Hexagonal socket head bolt of strength category 10.9
9.5 Mounting Holes for Connector Box
Tapped holes are provided for installing the connector box. [Refer to 1, "Names of the Parts."]
 The connector box is already installed if the units have been shipped pre-assembled.
 The connector box is not supplied if only a single axis has been shipped.
 It is supplied if multiple axes have been shipped individually for subsequent assembly.
 If the connector box is not installed, you can use these mounting holes for any desired purpose.
 Use the specified screws.
Type Tap size Maximum screw length
* Recommended tightening torque
Bearing surface: Steel
ZR-S
ZR-M
M5 8 mm 727 N cm {74.2 kgfcm}
* Hexagonal socket head bolt of strength category 10.9
Caution: The tapped holes are through holes, so pay attention to the maximum screw length at the
time of installation. If the internal mechanism is contacted, failure may occur.