ABB IRB6640 Motors 3HAC057547-004, 3HAC057547-005

Technical Dossier

Product Details And Specifications

ABB IRB6640 Series Technical Notes

The ABB IRB6640 is a high-payload industrial articulated robot platform engineered for heavy-duty manufacturing environments including automotive body-in-white assembly, foundry operations, chemical processing facilities, nuclear maintenance cells, and petroleum refinery material handling. With a payload capacity ranging from 130 kg to 235 kg and a reach envelope of up to 3.2 meters, the IRB6640 occupies a dominant position in the global heavy industrial robot installed base. Its modular axis drive architecture — built around discrete motor-and-gearbox assemblies per axis — means that individual axis motors, including the motor with integrated pinion (3HAC057547-004 / 3HAC057547-005), are the primary field-replaceable units for long-term asset maintenance.

The Evolution of IRB6640 Architecture

The IRB6640 was introduced as a successor to the IRB6600 series, inheriting the same S4C+ and IRC5 controller compatibility while delivering improved payload-to-reach ratios and reduced axis backlash through redesigned gearbox interfaces. Early production variants (pre-2010) used a different motor flange standard on Axis 1 and Axis 2, which is incompatible with later pinion-integrated motor assemblies such as the 3HAC057547-004.

From approximately 2012 onward, ABB standardized the IRB6640 motor assemblies around the 3HAC05xxxx part number family, consolidating Axis 1 through Axis 6 motors into a unified procurement catalog. The pinion-integrated motor design (as in 3HAC057547-004 and 3HAC057547-005) eliminates a separate pinion press-fit step during field replacement, reducing mean time to repair (MTTR) on Axis 1 and Axis 2 assemblies.

IRB6640 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the ABB IRB6640 spare parts ecosystem, organized by functional category. Each entry reflects a discrete, field-replaceable unit.

Axis Drive Motors (Motor incl. Pinion)

• 3HAC057547-004: Axis 1/2 motor assembly with integrated pinion, IRC5 compatible, standard payload variant
• 3HAC057547-005: Axis 1/2 motor assembly with integrated pinion, high-cycle duty rating variant
• 3HAC028780-001: Axis 3 drive motor, flange-mount, 400V AC servo
• 3HAC028781-001: Axis 4 drive motor, compact frame, encoder integrated
• 3HAC028782-001: Axis 5 drive motor, wrist assembly interface, low-inertia design
• 3HAC028783-001: Axis 6 drive motor, tool-flange end, high-resolution resolver

Gearbox & Mechanical Transmission

• 3HAC025562-001: Axis 1 gearbox unit, helical-planetary stage, grease-lubricated
• 3HAC025563-001: Axis 2 gearbox unit, single-stage reduction, cast iron housing
• 3HAC025564-001: Axis 3 gearbox unit, compact planetary, sealed bearing pack
• 3HAC040194-001: Axis 1 pinion gear, standalone replacement, hardened steel

Controller & Drive Electronics (IRC5 Compatible)

• 3HAC026254-001: Drive unit, axis computer board, IRC5 main computer
• 3HAC031670-001: Axis computer DSQC668, IRC5 single cabinet
• 3HAC026257-001: I/O module DSQC652, 24VDC digital I/O, 16DI/16DO
• 3HAC025338-001: Power supply unit, IRC5 cabinet, 400V input

Cables & Harnesses

• 3HAC031683-001: Axis 1–3 motor cable harness, 7-meter standard reach
• 3HAC031684-001: Axis 4–6 motor cable harness, upper arm routing
• 3HAC026560-001: SMB (Serial Measurement Board) cable, resolver signal

Structural & Balancing Components

• 3HAC028350-001: Spring balancing unit, Axis 2 counterbalance, nitrogen-charged
• 3HAC040082-001: Lower arm assembly, structural weldment, IRB6640-185/2.8

Quality Control for the IRB6640 Range

All IRB6640 motor and drive components processed by DriveKNMS undergo a structured inspection protocol before dispatch:

• Winding resistance test: Phase-to-phase and phase-to-ground resistance measured against ABB factory specification tolerances
• Insulation resistance (IR) test: 500V DC Megger test, minimum 100 MΩ acceptance threshold
• Encoder/resolver signal verification: Sine/cosine output amplitude and phase offset checked against reference values for the specific motor frame
• Pinion gear inspection: Tooth profile checked for pitting, spalling, and flank wear using optical comparator; backlash measured against gearbox interface specification
• Functional run test: Where test bench infrastructure permits, motors are run under no-load conditions at rated speed to verify bearing noise, thermal rise, and commutation stability
• Packaging: Anti-static bag, foam-lined export carton, desiccant pack; shaft and connector protected with end caps