Overview
Manuals
Compatibility & Industry
Operating principle
Axis-2 Gear Matching
Features:
- The documented abb article number is 3HAC044361-003, and this value must match the supplied unit.
- The documented product type is Reduction gear unit, and this value must match the supplied unit.
- The documented robot family is IRB 4600, and this value must match the supplied unit.
ABB 3HAC044361-003 is a Robot reduction gear unit documented for the applicable ABB Robots system configuration. Its recorded specification includes abb article number 3HAC044361-003, product type Reduction gear unit, robot family IRB 4600. Correct selection depends on the complete article identity, installed equipment, mechanical or electrical interfaces and the documented configuration rather than appearance alone. Using the exact model helps maintenance teams avoid incompatible revisions, connector arrangements and application variants.
Before installing 3HAC044361-003, record the original nameplate, installed position, connected assemblies and every relevant configuration detail. Compare the supplied unit with the existing hardware and applicable ABB service documentation, isolate all affected energy sources and preserve required settings or calibration data. After installation, inspect each affected interface and complete controlled functional checks before returning the equipment to service.
The 3HAC044361-003 ABB Robot reduction gear unit is listed as Active / Available from OEM. Current revision, availability and supplied scope are confirmed in the written quotation.
ABB 3HAC044361-003 documentation and reference links.
Important Notice: Every linked document must identify the listed model or its documented family. Confirm the complete order code, hardware revision and installed-system requirements before replacement.
3HAC044361-003 is a key original equipment manufacturer (OEM) replacement part for ABB IRB 4600 series industrial robots. With its high precision and powerful lifting capabilities, robots equipped with this gearbox are widely used in a variety of demanding production lines:
1.Automotive factories: for heavy material handling, spot welding, and machine tool loading and unloading;
2.Logistics and palletizing: for rapid packaging and heavy-duty box stacking;
3.Aerospace integration: powering robots for handling ultra-large aerospace structures or operating heavy-duty end effectors for structural drilling.
The 3HAC044361-003 operates on a two-stage reduction transmission mechanism combining planetary gears and cycloidal gears. The first stage of reduction is driven by a central gear powered by a servo motor, which in turn drives multiple planetary gears to rotate externally. The second stage is its core cycloidal structure. When the eccentric shaft of the planetary gears rotates, it drives the internal cycloidal wheel to perform an eccentric motion.
At this time, the teeth of the cycloidal wheel mesh with pins fixed to the outer casing, causing the cycloidal wheel to rotate slightly in the opposite direction while rotating on its own axis. This multi-tooth meshing "cycloidal gear" motion eliminates most of the gear backlash through pure rolling, thus achieving ultra-high torque output and near-zero backlash rigid transmission within a very small volume.
Use the complete ABB article number when matching this reduction gear unit to an IRB 4600 axis-2 assembly. The robot variant, mounting pattern and mating drive components must agree with the service documentation.
