ABB 3HAC034164-002 Axis 2 Robot Motor with Pinion

Technical Details & Specifications

Application Scenarios

Industrial Applications

This axis 2 servo motor is used in ABB industrial robots across automotive manufacturing, metal processing, material handling, and general automation lines. Axis 2 is one of the primary motion axes of a robot's kinematic chain and is typically one of the higher-torque joints responsible for arm positioning. The motor is also commonly replaced during scheduled maintenance or after mechanical damage to the pinion or bearings.

The exact robot model this part number fits is not officially documented in publicly available sources. Please contact us to confirm compatibility with your specific robot.

Design Purpose

The axis 2 motor is designed as the drive source for the robot's second axis. The pinion is pre-installed and dynamically matched to the motor shaft at the factory, so the unit is delivered ready to install — no separate pinion pressing, gear alignment, or shaft modification is needed. Replacing the motor as a complete assembly also preserves the original pinion-mesh geometry with the gearbox, which is critical for smooth motion and long gearbox life.

Common Failures & When to Replace

Motor problems are usually reported by the controller as axis or motor faults. Typical conditions that call for repair or replacement include:

• Overcurrent or overload alarms — the motor draws abnormal current, often due to winding degradation or mechanical binding in the gearbox.
• Overheating — the motor trips on temperature faults, usually from aged insulation, restricted airflow, or prolonged overload.
• Encoder errors — position feedback is lost or unstable, causing motion faults or uncontrolled drift.
• Brake failure — the holding brake no longer holds the axis when the drive is off, causing the arm to drop.
• Abnormal noise or vibration — worn bearings or damaged pinion teeth produce grinding, clicking, or rumbling sounds.
• Insulation breakdown — measured resistance between windings and ground drops below the safe threshold, often detected during preventive maintenance.

Specific alarm codes vary with the controller software and fault type. Please contact us with the alarm number displayed on your controller for accurate diagnosis.

Why Choose Us

• Specialized in industrial robot spare parts for ABB, FANUC, KUKA, and YASKAWA, with 20 years of industry experience.
• Every part is tested and verified by experienced technicians before shipping.
• 12-month warranty on all parts, covering free repair or replacement.
• Technical support available to help with installation, troubleshooting, and part selection.
• Trusted by customers in over 100 countries, with worldwide shipping and industrial-grade packaging.

Related Products

• Other ABB robot axis motors (axis 1, 3, 4, 5, 6 motors)
• ABB drive units for IRC5 controllers
• ABB gearboxes and RV reducers
• ABB motor pinions and replacement pinions

Contact us for a full list of compatible accessories and replacement parts for your robot model.