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 Technical Notes

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

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

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.