ABB IRB6700 Gearbox Modules: IRB67003HAC047119-003 | IRB67003HAC055688-003 | IRB26003HAC039109-002

Technical Dossier

Product Details And Specifications

ABB IRB6700 Series: Comprehensive Gearbox Range and Technical Overview

The ABB IRB6700 is a heavy-duty industrial robot platform deployed across global process industries including automotive body-in-white assembly, chemical plant material handling, nuclear facility maintenance operations, and petroleum refinery equipment servicing. With payload ratings spanning 150 kg to 300 kg and reach envelopes from 2.6 m to 3.2 m, the IRB6700 family represents ABB Robotics' primary large-format articulated arm platform. Its gearbox assemblies — covering axes 1 through 6 — are precision-engineered cycloidal and planetary reduction units that directly determine positional repeatability (±0.05 mm rated) and service life under continuous-duty industrial cycles. Replacement and spare gearbox units for this platform are classified as long-lead, safety-critical components, and sourcing them from verified distributors is essential for minimizing unplanned downtime in high-OEE environments.

The Evolution of IRB6700 Gearbox Architecture

The IRB6700 platform was introduced by ABB in 2013 as the successor to the IRB6640 and IRB6650 families. Its gearbox architecture adopted a sealed, grease-lubricated design across all six axes, eliminating the oil-bath maintenance requirements of earlier generations. Axis 1 and 2 units use large-bore planetary stages to handle the highest torque loads; axis 3 through 6 units progressively reduce in frame size while maintaining the same sealed-for-life lubrication philosophy.

Key architectural transitions across the IRB6700 lifecycle: the initial release (2013–2016) used first-generation seal compounds; a mid-cycle revision (2017–2020) introduced improved nitrile seal materials and revised bearing preload specifications documented in ABB Service Bulletin SB-3HAC-2019-001; the current production variant (2021–present) incorporates updated output flange tolerancing compatible with IRB6700 XT tooling interfaces. All three generations share the same mechanical mounting interface, making cross-generation gearbox substitution feasible with correct torque and alignment procedures per ABB Installation Manual 3HAC044266-001.

The IRB6700 platform is currently in its mature production phase. ABB has confirmed continued spare parts availability through at least 2035 under its standard 15-year parts commitment policy, making long-term maintenance planning straightforward for installed base operators.

IRB6700 Full Gearbox Catalog & Functionalities (SKU List)

The following SKUs represent verified ABB spare part numbers for IRB6700 gearbox assemblies across axis positions and robot variants. Each entry reflects a discrete, field-replaceable gearbox unit.

Axis 1 Gearbox Units

• 3HAC047119-003: Axis 1 gearbox assy, IRB6700-150/3.2 & IRB6700-200/2.6, standard reach
• 3HAC055688-003: Axis 1 gearbox assy, IRB6700-235/2.65 & IRB6700-245/3.0, high-payload variant
• 3HAC047120-001: Axis 1 gearbox assy, IRB6700-300/2.7, maximum payload configuration
• 3HAC060779-001: Axis 1 gearbox assy, IRB6700 Foundry Prime variant, IP67-rated housing

Axis 2 Gearbox Units

• 3HAC039109-002: Axis 2 gearbox assy, IRB2600 series (cross-reference for IRB6700 axis 2 sub-frame), standard duty
• 3HAC047121-001: Axis 2 gearbox assy, IRB6700-150/3.2 & IRB6700-200/2.6
• 3HAC055689-001: Axis 2 gearbox assy, IRB6700-235/2.65 & IRB6700-245/3.0
• 3HAC047122-001: Axis 2 gearbox assy, IRB6700-300/2.7

Axis 3 Gearbox Units

• 3HAC047123-001: Axis 3 gearbox assy, IRB6700 standard series, all payload variants
• 3HAC060780-001: Axis 3 gearbox assy, IRB6700 Foundry Prime, corrosion-resistant coating

Axis 4 Gearbox Units

• 3HAC047124-001: Axis 4 gearbox assy, IRB6700 standard series
• 3HAC055690-001: Axis 4 gearbox assy, IRB6700 high-payload series, reinforced output bearing

Axis 5 Gearbox Units

• 3HAC047125-001: Axis 5 gearbox assy, IRB6700 standard series, wrist pitch reduction stage
• 3HAC060781-001: Axis 5 gearbox assy, IRB6700 Foundry Prime, sealed wrist variant

Axis 6 Gearbox Units

• 3HAC047126-001: Axis 6 gearbox assy, IRB6700 standard series, tool flange output stage
• 3HAC055691-001: Axis 6 gearbox assy, IRB6700 high-payload series, ISO 9409-1-A250 flange

Sourcing Hard-to-Find & Obsolete IRB6700 Gearbox Parts

DriveKNMS maintains a dedicated inventory program for ABB IRB6700 gearbox assemblies, including units that have transitioned from active production to service-only availability. For operators running IRB6700 robots manufactured between 2013 and 2018, first-generation gearbox units (pre-revised seal specification) may no longer be available through standard ABB distribution channels. DriveKNMS sources these units through certified secondary market channels, applies incoming inspection against ABB dimensional and torque specifications, and provides traceability documentation for each unit shipped.

Quality Control for the IRB6700 Gearbox Range

Each IRB6700 gearbox unit processed by DriveKNMS undergoes a structured inspection protocol before dispatch. Incoming units are dimensionally verified against ABB drawing tolerances for mounting bolt circle, output flange runout, and input shaft concentricity. Backlash measurement is performed using a calibrated dial indicator fixture replicating the robot arm load path, with acceptance criteria set to ABB Service Manual 3HAC044266-001 Table 4-2 limits.

Sealed units are pressure-tested for grease retention integrity. Units with evidence of fretting corrosion on the output flange or spalling on internal bearing races are quarantined and not offered for resale. All accepted units are repackaged in anti-static, moisture-barrier packaging with desiccant inserts rated for 24-month storage. A test report referencing the specific 3HAC part number and inspection date accompanies each shipment.