Configured for Axis 3 mechanical drive transmission in the ABB IRB 1600, the ABB 3HAC021798-003 (3HAC021798-003 Motor Including Pinion) provides rotary drive torque through the integrated pinion and connects to the robot drive through dedicated power and feedback interfaces.

Part Identification

ABB's spare-parts documentation identifies 3HAC021798-003 as the Axis 3 motor from Premium Stephan for the IRB 1600ID configuration. Other ABB documentation identifies the same part number as a motor with pinion for the IRB 1600 family. The exact robot revision and motor supplier configuration should therefore be checked before replacement.

Hardware Specifications

ABB's current spare-parts documentation identifies 3HAC021798-003 specifically as the Axis 3 motor for the IRB 1600ID. It also lists 3HAC044557-001 as the corresponding SAMP motor alternative for the same Axis 3 position.

Robot Axis Drive Characteristics

The 3HAC021798-003 is assigned to Axis 3 in the IRB 1600 upper-arm assembly. ABB installation documentation shows the Axis 3 motor inside the upper-arm housing and identifies separate power and signal connections for the motor.

The integrated pinion transfers motor rotation into the robot-axis mechanical transmission. Consequently, replacement requires both electrical compatibility and correct mechanical gear engagement.

The supplied 2.4 Nm rated torque and 7.2 Nm peak torque represent different operating conditions. The peak value should not be interpreted as continuous shaft torque.

ABB Drive Interface

The motor uses dedicated robot power and feedback connections. ABB's IRB 1600 service documentation identifies the Axis 3 power connector as R3.MP3 and the feedback connector as R3.FB3.

The feedback circuit must remain compatible with the installed ABB robot controller and drive configuration. The motor should not be connected to a generic servo amplifier solely on the basis of its power and speed ratings.

The 3HAC021798-003 is documented as a robot spare part rather than a general-purpose standalone servo motor.

Industrial Drive Compatibility

As an ABB robotics motor, the applicable control architecture is the robot servo drive rather than a generic Profinet or EtherNet/IP motor interface.

For ABB industrial control systems, firmware and drive compatibility must be evaluated at the controller and drive level. The motor itself does not provide a PLC network interface.

The physical feedback path should be kept separate from high-current motor conductors where practical. Cable shielding and protective earth should follow the applicable ABB robot installation procedure.

Mechanical Installation

Axis 3 Mounting

• Confirm 3HAC021798-003 before removing the existing motor.
• Verify that the replacement is assigned to Axis 3.
• Inspect the integrated pinion for damaged or worn teeth.
• Check the mating transmission gear for abnormal wear.
• Keep the gear interface free from foreign material.
• Align the pinion correctly with the mating gear before securing the motor.
• Do not impose uncontrolled axial or radial loads on the motor shaft.

Electrical Connections

• Isolate robot and drive power before removing the motor.
• Verify the R3.MP3 power connection before reconnection.
• Verify the R3.FB3 feedback connection before reconnection.
• Inspect connectors for contamination, bent contacts, or mechanical damage.
• Maintain protective earth continuity.
• Keep feedback wiring separated from motor power conductors where practical.

Commissioning

• Check mechanical freedom of Axis 3 before energizing the drive.
• Confirm feedback response before commanding robot movement.
• Start with controlled axis motion.
• Monitor motor current, vibration, acoustic noise, and position error.
• Perform the applicable ABB axis calibration procedure after replacement.

Ordering Information

• 1 x ABB 3HAC021798-003 Motor Including Pinion
• 1 x Integrated pinion
• 1 x Motor power interface
• 1 x Motor feedback interface
• 0 x Robot controller included
• 0 x Drive unit included
• 0 x RobotWare software included
• 0 x Complete robot arm included

The ABB service documentation lists the motor as a replaceable Axis 3 component and separately identifies sealing components used during motor replacement.

Frequently Asked Questions

• What is ABB 3HAC021798-003?

  It is an ABB motor including pinion assigned to Axis 3 of the IRB 1600 robot family. ABB lists the exact part number in its IRB 1600 spare-parts documentation.

• Which robot axis uses this motor?

  The documented application is Axis 3. ABB's IRB 1600ID spare-parts list identifies 3HAC021798-003 specifically as the Axis 3 motor.

• Does the motor include a pinion?

  Yes. The ABB catalog description identifies the part as "MOTOR W. PINION", indicating that the pinion is part of the identified assembly.

• What is the rated motor power?

  The supplied product data specifies 0.75 kW rated power, 3000 RPM rated speed, and 2.4 Nm rated torque.

• What is the peak torque?

  The supplied peak torque is 7.2 Nm. This value should not be treated as the continuous rated torque of the motor.

• What are the motor power and feedback connectors?

  ABB's IRB 1600 service documentation identifies R3.MP3 as the Axis 3 power connector and R3.FB3 as the feedback connector.

• Can this motor be replaced by another motor with the same power rating?

  No. Axis position, pinion geometry, feedback interface, mounting arrangement, and ABB robot configuration must all be matched.

• Is the 1.55 kg weight verified by ABB?

  The 1.55 kg value is from the supplied product data. ABB's located spare-parts documentation confirms the part identity but does not provide an independent weight value for this exact assembly.