ABB 3HAC048116-002 Maintenance-Proven Spare for IRB 6700

Overview

ABB 3HAC048116-002 Maintenance-Proven Spare Part for IRB 6700: Servo Motor for Factory Uptime

The ABB 3HAC048116-002 is an original servo motor spare part designed for the ABB IRB 6700 series industrial robot — one of the most widely deployed heavy-payload articulated robots in automotive, metal fabrication, foundry, and general manufacturing environments. Sourced directly from authorized supply channels, this unit is stocked and dispatched from KNMKS to support maintenance engineers and procurement teams who cannot afford extended downtime on critical production lines.

Whether you are responding to an unplanned axis fault, executing a scheduled annual overhaul, or building a strategic spare parts buffer for a multi-robot cell, the 3HAC048116-002 delivers the OEM-grade reliability that safety-critical automation demands. Each unit undergoes pre-shipment functional testing and ships with a support terms confirmed by quotation, giving your maintenance team confidence from the moment it arrives on site.

The IRB 6700 platform is engineered for longevity, and many installations remain in active service well beyond their original design life. For aging systems, maintaining a verified stock of axis servo motors — including the 3HAC048116-002 and its cross-reference equivalents 3HAC048116-003 and 3HAC059651-002 — is a proven strategy for extending system life without committing to a full robot replacement. KNMKS maintains long-term supply continuity for this part family, supporting both emergency replacement and planned procurement cycles.

Spare Maintenance Table

Maintenance Planning for Continuous Operation

When replacing the ABB 3HAC048116-002 axis 3 servo motor on an IRB 6700, a thorough maintenance engineer will treat the replacement as an opportunity to inspect the entire kinematic chain and associated electrical infrastructure. Axis servo motor failures on the IRB 6700 are rarely isolated events — they are often preceded or accompanied by degradation in connected components.

Begin by inspecting the SMB (Serial Measurement Board), typically referenced as 3HAC044168-001 or its successor revision, which handles resolver signal processing for all six axes. A faulty SMB can cause axis position errors that mimic servo motor failure and should be verified before condemning the motor. Alongside the SMB, check the axis computer (DSQC 668 / 3HAC025338-001) for firmware integrity and communication faults logged in the IRC5 event log.

The drive unit powering axis 3 — part of the IRC5 drive module assembly — should be inspected for DC bus voltage stability, IGBT thermal performance, and any overcurrent trip history. If the drive has logged repeated overcurrent events prior to the motor fault, the drive module itself may require replacement or recalibration. Similarly, inspect the motor cable harness (power and resolver cables) for insulation breakdown, connector pin corrosion, and bend-radius fatigue at the cable entry points — a common failure mode in high-cycle foundry and press-tending applications.

For robots operating in dusty or high-temperature environments, verify the condition of the axis 3 gearbox (Nabtesco RV series, referenced in ABB spare lists as 3HAC044075-001 or equivalent) and confirm oil level and contamination status. A worn gearbox places abnormal load on the servo motor and accelerates bearing failure. If the gearbox shows backlash beyond ABB tolerance, plan its replacement in the same maintenance window to avoid a repeat motor failure within months.

Finally, review the teach pendant (FlexPendant) and IRC5 controller cabinet for any active alarms related to axis calibration, resolver offset, or motor temperature. After installing the 3HAC048116-002, a full axis calibration using the CalPendulum II or equivalent ABB calibration tool is mandatory to restore positional accuracy and protect downstream tooling and fixtures.

Site Replacement Workflow

Step 1 — Isolate and de-energize: Follow ABB LOTO procedures for the IRC5 cabinet. Confirm zero energy state on the drive module DC bus before opening the upper arm housing.

Step 2 — Document current calibration offsets: Record all axis resolver offsets from the IRC5 system parameters before disconnecting the motor. This data is essential for post-installation calibration.

Step 3 — Remove the failed motor: Disconnect the motor power cable and resolver cable. Remove the motor mounting bolts (typically M8 or M10, torque to ABB specification). Extract the motor carefully to avoid damaging the gearbox input shaft spline.

Step 4 — Inspect and prepare the mounting interface: Clean the gearbox input flange. Inspect the spline for wear. Apply fresh grease per ABB specification before installing the replacement unit.

Step 5 — Install 3HAC048116-002: Align the motor spline carefully. Torque mounting bolts to ABB specification in a cross pattern. Reconnect power and resolver cables, verifying connector locking engagement.

Step 6 — Restore and calibrate: Power up the IRC5 controller. Clear axis faults. Perform fine calibration using the CalPendulum II or reference mark method. Verify positional accuracy against the robot’s reference program before returning to production.

Step 7 — Log and update spare parts inventory: Record the replacement in your CMMS. Reorder a replacement 3HAC048116-002 to restore your spare parts buffer. Contact KNMKS at [email protected] to confirm stock availability and lead time for your next unit.

Spare Parts Support FAQ

Q1: Is the 3HAC048116-002 compatible with all IRB 6700 variants?
The 3HAC048116-002 is the axis 3 servo motor for the IRB 6700 series and is compatible across the major payload/reach variants including the 150/3.2, 200/2.6, 235/2.65, 245/3.0, 300/2.7, and 155/2.85 configurations. Cross-reference SKUs 3HAC048116-003 and 3HAC059651-002 are revision equivalents. Always verify your robot’s serial number and axis configuration against the ABB spare parts catalog or contact KNMKS for confirmation before ordering.

Q2: What pre-shipment testing does KNMKS perform on this part?
Every 3HAC048116-002 unit dispatched by KNMKS undergoes functional verification prior to shipment, including electrical continuity checks, insulation resistance testing, and resolver signal output verification. This process ensures the unit is operationally sound before it reaches your site, reducing the risk of a failed replacement during a critical downtime event. All units ship with a support terms confirmed by quotation covering manufacturing defects and functional failure under normal operating conditions.

Q3: How should we manage long-term spare parts inventory for IRB 6700 servo motors?
For facilities operating three or more IRB 6700 robots, KNMKS recommends maintaining a minimum buffer of one 3HAC048116-002 (or cross-reference equivalent) per robot cell, with a replenishment trigger set at consumption. For high-cycle applications such as automotive body welding or press tending, consider a two-unit buffer per cell. KNMKS supports annual blanket order agreements and scheduled replenishment programs to ensure long-term supply continuity, particularly for parts approaching end-of-catalog status.

Q4: Can this part be used to extend the life of an older IRB 6700 system beyond its original design life?
Yes. The IRB 6700 platform is designed for a 25-year service life with proper maintenance, and many installations continue operating well beyond initial projections. Replacing worn servo motors with OEM-equivalent units such as the 3HAC048116-002 is a cost-effective alternative to full robot replacement, particularly when the mechanical structure and controller remain in good condition. KNMKS maintains supply continuity for this part family to support long-term asset management strategies and old-system life extension programs.

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Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

IRB67003-43HAC048116-002 IRB67003-43HAC048116-003 IRB67003-43HAC059651-002
IRC5 Series

Product Family

Servo Systems

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Motion range

Servo drives, motors and cable sets

Common needs

Power, encoder and brake confirmation

Project support

Motion upgrade and spare-part supply

Inquiry Support

• Motor, drive and cable set coordination
• Power rating and encoder type checking
• Motion control replacement support

What to Send Us

• Brand and exact model number: ABB IRB67003-43HAC048116-002 IRB67003-43HAC048116-003 IRB67003-43HAC059651-002
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference