ABB IRB6640 IRB7600 KEBA Servo Motors: 3HAC023195-001 3HAC025724-001 3HAC17484-1 3HAC17484-2 3HAC17484-8

Technical Dossier

Product Details And Specifications

ABB KEBA IRB6640 & IRB7600 Servo Motor Series: Comprehensive Module Range and Technical Overview

The ABB KEBA servo motor range powers the IRB6640 and IRB7600 robot families — two of the most widely deployed heavy-payload industrial robots in global automotive, foundry, metal fabrication, and logistics automation. With payload capacities ranging from 130 kg to 500 kg, these robots are installed across thousands of production lines in Europe, Asia, and North America. The servo motors that drive their axes are precision-engineered components with strict OEM tolerances; sourcing the correct Motor Type (A, B, or C) for the correct axis is non-negotiable for safe recommissioning.

As both the IRB6640 and IRB7600 series have entered their mature maintenance lifecycle, the global availability of genuine KEBA-manufactured servo motors has tightened. Procurement managers responsible for uptime at high-throughput facilities must maintain a clear sourcing strategy for these components — particularly for Axis 1–3 (primary load-bearing axes) where motor failure results in immediate line stoppage.

The Evolution of ABB KEBA Servo Motor Architecture

ABB's IRB6640 was introduced in 2007 as a direct successor to the IRB6600, offering improved reach variants (1.6 m, 1.7 m, 2.0 m, 2.55 m) and a standardized motor interface that simplified field replacement. The IRB7600 preceded it, entering service in 2002 as ABB's flagship 500 kg payload platform. Both platforms use KEBA-sourced servo motors — a long-standing ABB drive technology partner — with the motor designation (Type A, B, C) corresponding to axis position and torque class.

Early IRB7600 units (pre-2005) used a first-generation KEBA motor with a different encoder connector pinout. From 2005 onward, ABB standardized the encoder interface across both IRB6640 and IRB7600, making cross-axis substitution possible in some configurations. The 3HAC17484-x series (suffix -1, -2, -8) represents the mature, standardized generation of this motor family. Procurement teams managing mixed-vintage fleets must verify the robot's manufacturing date and axis assignment before ordering.

Both series are now in the extended support phase: ABB continues to provide spare parts but no longer offers new robot sales in these configurations. This makes third-party certified supply channels — with verified part authenticity and functional testing — the primary sourcing route for most maintenance teams.

ABB KEBA IRB6640 & IRB7600 Full Servo Motor Catalog & Functionalities (SKU List)

IRB7600 Series Motors:

• 3HAC023195-001: IRB7600 Axis 1 servo motor, Motor Type A, high-torque primary rotation drive
• 3HAC025724-001: IRB7600 Axis 2 servo motor, Motor Type A, main arm elevation drive unit
• 3HAC025725-001: IRB7600 Axis 3 servo motor, Type A, forearm lift motor assembly
• 3HAC025726-001: IRB7600 Axis 4 servo motor, wrist rotation, medium-torque class
• 3HAC025727-001: IRB7600 Axis 5 servo motor, wrist bend, compact form factor
• 3HAC025728-001: IRB7600 Axis 6 servo motor, tool flange rotation, low-inertia design
• 3HAC14550-2: IRB7600 Axis 1 motor (early generation), compatible with pre-2005 units
• 3HAC14551-2: IRB7600 Axis 2 motor (early generation), requires encoder adapter on post-2005 controllers

IRB6640 Series Motors:

• 3HAC17484-1: IRB6640 Axis 1 servo motor, Motor Type A, base rotation, rated for continuous high-cycle duty
• 3HAC17484-2: IRB6640 Axis 2 servo motor, Motor Type A, lower arm drive, primary load axis
• 3HAC17484-8: IRB6640 Axis 3 servo motor, Motor Type A, upper arm drive, matched torque class to Axis 2
• 3HAC17484-3: IRB6640 Axis 4 servo motor, wrist assembly rotation drive
• 3HAC17484-4: IRB6640 Axis 5 servo motor, wrist bend actuator, IP67-rated housing
• 3HAC17484-5: IRB6640 Axis 6 servo motor, tool flange drive, low-backlash gearbox interface
• 3HAC031683-001: IRB6640 replacement motor kit, Axis 1–3, includes mounting hardware and encoder cable
• 3HAC026253-001: IRB6640/IRB7600 shared encoder unit, compatible with 3HAC17484-x and 3HAC025724-x families
• 3HAC028357-001: Brake assembly for IRB6640 Axis 1–2 motors, direct OEM replacement

Sourcing Hard-to-Find & Obsolete ABB KEBA Servo Motor Parts

The core procurement risk for IRB6640 and IRB7600 motor sourcing is counterfeit and refurbished-as-new inventory. Because these motors carry high unit values and are in sustained demand, the secondary market contains a significant volume of motors with replaced encoders, re-wound stators, or resprayed housings presented as genuine OEM stock. A motor with a compromised encoder will pass basic continuity checks but fail under load, causing axis faults (error codes 50056, 50057 on IRC5 controllers) within hours of recommissioning.

DriveKNMS sources KEBA servo motors through verified OEM-adjacent channels, including decommissioned robot buybacks from certified dismantlers and bonded warehouse stock from authorized regional distributors. Each unit is logged with its source documentation before entering our inventory. For end-of-life models (pre-2005 IRB7600 motors), we maintain a cross-reference database to identify functional equivalents and advise on encoder adapter requirements where applicable.

Lead time for standard 3HAC17484-x and 3HAC025724-x motors: 3–7 business days from verified stock. For early-generation or low-volume variants: 10–21 business days subject to sourcing confirmation.

Quality Control for the ABB KEBA IRB6640 & IRB7600 Motor Range

Each servo motor processed by DriveKNMS undergoes a structured inspection protocol before dispatch:

• Encoder signal verification: Resolver or absolute encoder output tested against OEM reference waveforms using a dedicated servo analyzer. Encoder replacement history is flagged and disclosed.
• Winding resistance & insulation test: Phase-to-phase resistance balance checked; insulation resistance measured at 500 V DC (minimum 100 MΩ accepted).
• Brake function test: Holding torque verified against ABB specification. Motors with brake wear exceeding 20% of OEM tolerance are rejected or brake-replaced and re-tested.
• Mechanical inspection: Shaft runout, bearing play, and housing integrity checked. Motors with shaft damage or housing cracks are quarantined.
• Functional run test: Where test bench capacity permits, motors are run under load at rated speed for a minimum 30-minute burn-in cycle.

All units ship with a 12-month warranty covering functional failure under normal operating conditions. Export documentation includes commercial invoice, packing list, and certificate of conformity. Payment accepted in USD, EUR, CNY, and HKD. Shipping via DHL Express or FedEx International Priority with full tracking.

For RFQ, technical cross-reference queries, or bulk procurement inquiries: