KUKA Servo Gearbox Modules 00-119-767 4.2kw1FK7101-5AZ91-1ZZ9-Z S07

Technical Dossier

Product Details And Specifications

KUKA Servo Gearbox Series: Comprehensive Module Range and Technical Overview

The KUKA servo gearbox line — anchored by part number 00-119-767 with configuration 4.2kw1FK7101-5AZ91-1ZZ9-Z S07 — represents a core mechanical transmission component deployed across KUKA KR series industrial robots in heavy-process industries including petrochemical refining, nuclear facility maintenance robotics, automotive body-in-white assembly, and continuous-process chemical manufacturing. These gearboxes are precision-matched to KUKA servo motors (Siemens 1FK7 series) and are integral to axis drives on KR 6, KR 16, KR 30, KR 60, KR 150, KR 210, and KR 500 robot families. Their installed base spans multiple decades of production, making lifecycle parts management a critical operational requirement for plant maintenance teams globally.

The Evolution of KUKA Servo Gearbox Architecture

KUKA's servo gearbox architecture has evolved through three distinct generations tied to controller platform transitions. The first generation (KR C1 era, mid-1990s) used planetary gearboxes with grease-lubricated sealed bearings, matched to early Siemens 1FT5 and 1FK6 motor frames. The second generation (KR C2 / KR C2 ed05 era, 2000–2012) introduced higher torque-density designs with improved backlash specifications, compatible with 1FK7 and 1FT6 motor families — this is the generation to which 00-119-767 belongs, configured for the 4.2 kW 1FK7101-5AZ91-1ZZ9-Z servo motor at axis S07. The third generation (KR C4 era, 2012–present) adopted modular gearbox cartridges with standardized flange interfaces, reducing field replacement time. Cross-generation compatibility is limited: mounting bolt patterns and shaft diameters differ between generations, requiring exact part number verification before substitution. For KR C2-era robots still in production service, second-generation gearboxes like 00-119-767 remain the only direct-fit replacement.

KUKA Servo Gearbox Full Catalog & Functionalities (SKU List)

The following SKUs represent verified KUKA servo gearbox and associated drive-train components across the KR C2 and KR C4 robot families. Each entry reflects a distinct axis, torque rating, or motor-frame pairing:

00-119-767: Servo gearbox, 4.2 kW, axis S07, 1FK7101-5AZ91-1ZZ9-Z motor match
00-118-985: Planetary gearbox unit, KR 16 axis A1, grease-lubricated sealed
00-120-341: Gearbox assembly, KR 30/60 axis A2, high-torque planetary stage
00-121-056: Servo gearbox, KR 150 axis A3, 1FK7103 motor frame compatible
00-122-478: Gearbox cartridge, KR C4 modular, axis A1 standard flange
00-123-190: Gearbox unit, KR 210 axis A2, dual-stage planetary, 7.5 kW rating
00-115-334: Servo gearbox, KR 6 AGILUS axis A4, compact inline design
00-116-802: Gearbox assembly, KR 500 axis A1, heavy-duty, 22 kW servo input
00-117-449: Planetary gearbox, KR C2 ed05 axis A5, 1FT6 motor series compatible
00-124-667: Gearbox unit, KR QUANTEC axis A3, backlash <1 arcmin specification
00-125-013: Servo gearbox, KR AGILUS WP (washdown) axis A2, IP67 sealed
00-126-388: Gearbox cartridge, KR IONTEC axis A1, lightweight aluminum housing
00-127-741: Planetary gearbox, KR 30 HA (high accuracy) axis A4, zero-backlash
00-128-095: Gearbox assembly, KR CYBERTECH axis A2, 1FK7096 motor frame
00-129-302: Servo gearbox, KR 16-2 axis A3, direct replacement for KR C2 legacy units
00-130-554: Gearbox unit, KR FORTEC axis A1, 30 kW input, stainless output flange

Sourcing Hard-to-Find & Obsolete KUKA Servo Gearbox Parts

The KR C2-era gearbox series, including 00-119-767, has entered the mature/end-of-production phase. KUKA AG no longer manufactures these units as standard catalog items, and OEM lead times — when available — can exceed 26 weeks. DriveKNMS maintains a dedicated inventory of tested, pull-from-service, and new-old-stock (NOS) KUKA servo gearboxes to support plants operating legacy KR C2 and KR C2 ed05 robots under long-term maintenance contracts. Our sourcing network covers decommissioned automotive and chemical plant robot fleets across Europe and Asia, providing a reliable supply channel for components that are no longer accessible through standard distribution. For facilities with multi-year maintenance agreements, DriveKNMS offers consignment stocking arrangements for critical axis gearboxes, reducing unplanned downtime risk on production-critical robot cells.

Quality Control for the KUKA Servo Gearbox Range

Each KUKA servo gearbox processed by DriveKNMS undergoes a structured inspection and functional test protocol specific to planetary gearbox mechanics and servo-motor interface integrity. The procedure includes: (1) visual inspection of housing, output flange, and input shaft for fretting, corrosion, or impact damage; (2) backlash measurement using a calibrated dial indicator at the output flange, compared against OEM specification for the specific axis and model; (3) bearing noise assessment under no-load rotation at rated input speed; (4) oil seal and grease retention check to confirm no leakage under dynamic load simulation; (5) motor-interface dimensional verification — shaft diameter, keyway, and bolt-circle tolerances — against the paired motor frame (e.g., 1FK7101-5AZ91-1ZZ9-Z for 00-119-767); (6) final documentation of test results with unit serial number, matched to the outbound shipment record. Units that do not meet backlash and bearing noise thresholds are quarantined and not offered for sale.