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ABB 3HAC043072-003 is a reduction gear rv-550n-252.33 for IRB 6700. It performs axis-2 reduction gearbox, graphite white and must match the documented ABB configuration.
This reduction gear serves the documented high-load robot-axis transmission arrangement. Match the axis position, gear designation and complete article number before replacement.
Confirm the robot family, mounting interface, transmission ratio and lubricant or service requirements from the installed configuration.
Support the arm safely, record the orientation and fastener positions, install the verified reducer and complete backlash and motion checks before production.
Engineering check: Confirm 3HAC043072-003 is the RV-550N gearbox with 252.33 ratio for IRB 6700 axis 2 and the graphite white execution. Compare flange, output orientation, sealing surfaces and attachment pattern before mounting.
Acceptance test: Use the ABB maintenance procedure for lubricant and filling position, then jog the affected axis at reduced speed. Check direction, backlash, noise, leakage and temperature, and update calibration or the revolution counter before production.