KUKA 00-284-170 PC 00-104-561 C2 00-192-268 C4GA12 Counterbalancing System – Obsolete KUKA Spare Part

Technical Dossier

Product Details And Specifications

KUKA 00-284-170 PC 00-104-561 C2 00-192-268 C4GA12 Counterbalancing System – Obsolete KUKA Spare Part

When a counterbalancing system fails on a KUKA robot arm, the consequences extend far beyond a single axis. The counterbalancing unit is a load-bearing mechanical assembly that maintains joint equilibrium throughout the robot's range of motion. Without it, the robot cannot operate safely or accurately. For facilities running legacy KUKA KR series robots — many of which have been in continuous production service for 15 to 25 years — sourcing a replacement for a discontinued assembly like the 00-284-170 / 00-104-561 C2 / 00-192-268 C4GA12 is not a routine procurement task. It is a crisis.

A single unplanned line stoppage in an automotive body shop or a heavy-duty palletizing cell can cost between $50,000 and $500,000 per day in lost throughput, expedited logistics, and emergency labor. The decision to upgrade an entire robot cell — including new robot arms, end-of-arm tooling, safety fencing, PLC reprogramming, and operator retraining — routinely exceeds $1,000,000 per station. Against that backdrop, securing a verified spare counterbalancing assembly from DriveKNMS represents a fraction of the cost and eliminates months of engineering lead time.

DriveKNMS maintains physical inventory of hard-to-find KUKA mechanical assemblies. This listing represents a genuine opportunity to protect your automation asset and defer a capital expenditure that your budget cycle may not be prepared to absorb.

Technical Specifications

Note: Electrical parameters are not applicable to this mechanical assembly. No parameters have been assumed or fabricated. Confirm mechanical fitment with your robot's service documentation.

Solving the Discontinued Hardware Crisis

KUKA's KR series robots — including the KR 150, KR 200, KR 210, and related heavy-payload variants — were deployed extensively in automotive, foundry, and general manufacturing environments from the late 1990s through the 2010s. Many of these systems remain in daily production service because they were engineered for longevity and because the cost of replacing them is prohibitive.

The counterbalancing system on these robots is a high-cycle mechanical component. It absorbs gravitational load on the primary axis, reducing motor torque demand and protecting gearbox integrity. When the counterbalancing assembly degrades or fails, the effects cascade: increased motor current draw, accelerated gearbox wear, positional drift, and ultimately a safety shutdown. The robot does not fail gracefully — it fails in a way that can damage tooling, fixtures, and adjacent equipment.

KUKA discontinued support for several counterbalancing assemblies in this part number family as the KR series transitioned to the KR QUANTEC and KR AGILUS platforms. Authorized KUKA service channels no longer stock these assemblies. Third-party machine tool distributors rarely carry them. The result is that plant maintenance teams face a sourcing gap that can stretch from weeks to months — during which the robot sits idle or operates in a degraded, unsafe state.

DriveKNMS specializes in closing exactly this gap. Our inventory of legacy KUKA mechanical assemblies is sourced from decommissioned robot cells, authorized surplus channels, and long-term storage facilities. Each unit undergoes inspection before shipment.

Condition & Reliability Assurance

Sourcing a discontinued mechanical assembly from an unknown channel carries real risk. A counterbalancing unit that has been improperly stored, overloaded, or repaired without documentation can fail prematurely — and in a worst case, cause a robot arm drop event. DriveKNMS applies a structured 5-step inspection protocol to every counterbalancing assembly before it leaves our facility:

Step 1 – Visual and Dimensional Inspection: External housing, mounting flanges, and pivot points are inspected for cracks, deformation, and corrosion. Units with structural compromise are rejected.

Step 2 – Spring / Pneumatic Element Assessment: For spring-type counterbalancers, spring preload and free length are measured against OEM specification ranges. For pneumatic types, bladder integrity and valve condition are verified.

Step 3 – Bearing and Pin Inspection: Pivot bearings and retention pins are checked for wear, pitting, and play. Worn bearings are replaced with equivalent-specification components.

Step 4 – Surface Treatment and Corrosion Remediation: Pin corrosion and surface oxidation — common in units that have been in storage — are addressed. Contact surfaces are cleaned and protected.

Step 5 – Documentation and Traceability: Each unit is tagged with its inspection record, condition grade, and source classification (NOS or refurbished) before packaging.

Key Features for System Maintenance

The primary value of sourcing a genuine OEM-equivalent counterbalancing assembly is that it requires no engineering modification to install. This is a direct mechanical replacement — the mounting geometry, pivot dimensions, and load rating match the original specification. There is no need to modify the robot's base frame, recalibrate the axis zero point from scratch, or engage a KUKA service engineer for a structural retrofit.

For plant maintenance teams operating under production pressure, this matters. The difference between a drop-in replacement and an engineered workaround is measured in days of downtime and tens of thousands of dollars in labor and consulting fees. A verified OEM-equivalent assembly restores the robot to its original mechanical specification, preserving the accuracy and repeatability that your production process depends on.

Beyond the immediate repair, maintaining a spare counterbalancing assembly in your critical spares inventory is a low-cost insurance policy. The assembly itself represents a small fraction of the robot's total asset value. Holding one spare unit eliminates the sourcing lead time entirely for the next failure event — which, on a high-cycle robot, is a matter of when, not if.

For facilities managing fleets of legacy KUKA robots, DriveKNMS can discuss bulk sourcing arrangements and long-term spare parts programs. Extending the service life of your existing robot assets by 5 to 10 years through proactive spare parts management is consistently more cost-effective than capital replacement — particularly in environments where the robot's tooling, fixtures, and process programs represent significant embedded investment.

FAQ

What warranty applies to this discontinued part?
DriveKNMS provides a 90-day functional warranty on all refurbished assemblies and a 30-day warranty on New Old Stock units. Warranty covers defects identified under normal operating conditions. It does not cover damage resulting from incorrect installation or operation outside the robot's rated parameters.

How do I confirm this is a genuine or quality-refurbished unit, not a counterfeit?
Every unit shipped by DriveKNMS includes its inspection record and condition classification. We do not source from unverified secondary markets. If you require additional documentation — including photographs of the specific unit prior to shipment — we can provide this upon request before you commit to purchase.

Should I buy more than one unit?
If you operate more than one robot of the same model, holding two units is a reasonable minimum. For a single robot in a critical production role, one spare is the baseline. Given that this assembly is confirmed obsolete and our inventory is finite, we recommend securing your requirement now rather than returning to the market after a failure event.

Can you source other obsolete KUKA parts?
Yes. DriveKNMS maintains sourcing relationships for a broad range of legacy KUKA mechanical and electrical components. Contact us with your part number and we will advise on availability.