ABB 3HAC045978-001 Axis 5 Motor with Pulley for IRB 1200

Axis 5 Servo Motor with Pulley — Technical Overview

Specifications

Industrial Applications

• Small-parts assembly and precision handling in electronics and consumer-goods manufacturing.
• Machine tending and loading for compact CNC machines, test stations, and lab automation.
• Pick-and-place, dispensing, and screw-driving cells where the IRB 1200’s wrist precision is critical.
• Light packaging and inspection lines that require a small, fast six-axis robot.
• Food and beverage handling in hygiene-sensitive, compact production environments.

Design Purpose

The axis-5 motor converts electrical energy from the drive unit into controlled rotation of the IRB 1200’s wrist pitch joint. The timing-belt pulley transmits torque to the wrist through a belt drive, which keeps the rotating mass low and the wrist assembly compact — important for a small robot designed to reach into tight workspaces with high path accuracy. The built-in resolver/encoder feeds precise rotor position back to the IRC5 controller for smooth, repeatable wrist motion.

Common Failure Modes

• Overcurrent or overheat tripping — the drive unit reports motor overload after continuous wrist motion.
• Encoder / resolver feedback loss — axis 5 shows position drift or alarms during homing.
• Holding brake failure — the wrist sags or drops when the servo is switched off.
• Timing-belt or pulley wear — tooth wear or belt slack produces backlash, chatter, or drift in the wrist.
• Abnormal noise or vibration — worn pulley teeth or bearing damage in the compact wrist assembly.
• Insulation degradation or ground fault — the axis-5 drive trips the moment the motor is enabled.

For a step-by-step root-cause procedure and replacement workflow, we recommend publishing an on-site article such as "ABB IRB 1200 Axis 5 Motor Troubleshooting Guide" and linking it here. The link can be inserted once the article is published.

Why Choose Us

• Focused ABB robot spare-parts supplier covering servo motors, drive units, gearboxes, and teach pendants for IRB-series robots.
• Each axis motor is inspected and tested (encoder signal, insulation resistance) before packing.
• Pulley pre-installed and factory matched to the timing-belt drive — no separate pulley fitting required at installation.
• 12-month warranty with remote technical support for installation and commissioning questions.
• Multiple payment methods accepted — PayPal, T/T, and Alibaba Trade Assurance.

Related Products

• ABB IRB 1200 axis 1, 2, 3, 4, and 6 servo motors
• ABB IRB 1200 timing belts and pulleys
• ABB robot servo drive units (DSQC series)
• ABB robot reducers and wrist assemblies
• ABB teach pendants and IRC5 controller accessories