
Motor Unit with Pinion for ABB IRB 4400
A dedicated ABB robotics spare part associated with the IRB 4400 robot family, identified for the Axis 6 motor unit with pinion configuration using a Yaskawa motor. It is intended for applications where the corresponding robot-axis drive component requires replacement.
The 3HAC021728-001 is associated with the drive arrangement of the ABB IRB 4400, providing a replacement option for the specified Axis 6 motor unit with pinion.
The exact part number for matching and purchasing enquiries.
Associated with the ABB IRB 4400 articulated robot platform.
Identified for the Axis 6 motor unit with pinion configuration.
Within an IRB 4400 robot configuration, the Axis 6 motor unit contributes to the movement chain at the robot's sixth axis. The corresponding motor and pinion assembly is therefore important when maintaining the mechanical motion capability of that axis.
Maintenance teams may search for this part when the existing Axis 6 motor unit requires replacement and the installed robot configuration calls for the matching part number.
A failed or unavailable axis motor can prevent the robot from completing its programmed movement sequence. For production cells depending on the affected axis, this can extend troubleshooting time and increase equipment downtime.
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Practical questions for identification, application and replacement planning.



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