Spare parts/servo motor Fanuc robot

Topic classification: FANUC spare parts and servo motors

As a specialized supplier, we support you in the procurement of spare parts and servo drives for FANUC robots, CNC machines and positioning systems.Original FANUC componentsand professionally refurbished servomotors ensure high availability and close adherence to the manufacturer's specifications, so that your automation solutions can be operated stably in the long term.

Functioning of servomotors in FANUC systems

Servomotors in FANUC drive and robot systems precisely convert electrical energy into rotary motion. They typically consist of a stator with windings, a permanent magnet rotor, and a feedback system (such as an encoder) that reports the current position to the controller. Together with the drive amplifier and CNC or robot controller, this forms a closed control loop that continuously monitors and adjusts the target position, speed, and torque. For you, this means highly dynamic axis movements, short cycle times, and reproducible positioning accuracy – key factors for stable series production processes.

Modern FANUC servo drives are based onPrecision, reliability and energy efficiencyDesigned for low energy consumption and high dynamics, these servo motors can be integrated into various industrial environments and existing machine concepts. Especially when combined with suitable CNC and drive systems, they provide a seamlessly integrated platform for robotics and machine tools.

Areas of application: From industrial robots to CNC machining

FANUC servomotors are used in a wide variety of applications – from six-axis robots and auxiliary axes such as servo positioners to CNC milling, turning, and grinding machines. In industrial robots, they realize the precise movements of the individual robot joints and ensure high accelerations while maintaining accurate path guidance. In machine tools, servo drives handle feed and main axes, thus contributing directly to surface finish, dimensional accuracy, and process reliability.

For companies in the automotive and supplier industries, mechanical and plant engineering, electronics manufacturing, or medical technology, functioning servo motors and associated spare parts are therefore a key factor in overall equipment effectiveness. Accordingly, it is important to plan for wear-prone components in a timely manner and replace them within maintenance windows – especially for robots and CNC machines operating in multiple shifts.

Advantages of original FANUC components

Using components that meet the manufacturer's specifications offers you several advantages:

• Compatibility:Mechanical interfaces (flange, shaft, brake) and electrical properties (encoder, connector, voltage range) are tailored to FANUC drives and controllers.
• Operational reliability:The design of the servomotors is geared towards demanding industrial environments, thereby reducing the risk of failure and unplanned downtime.
• Process quality:Stable control characteristics and high resolution of the feedback systems enable consistent processing and handling quality – even with complex paths.
• Lifespan and maintenance:FANUC offers refurbishment and overhaul solutions for many products, where used components are repaired to reduce costs and conserve resources.

When selecting components, we pay attention to high-quality parts, traceable origin, and professional testing. This ensures you receive spare parts that can be seamlessly integrated into existing systems and meet the requirements of your maintenance and quality management systems.

Selection, identification and procurement of suitable servo motors

The FANUC drive system includes a wide range of servo and spindle motors for different performance ranges and applications; therefore, selecting the correct motor is crucial. For a successful selection, we recommend having the following information readily available:

• exact part number or order number of the existing engine (for example A06B-…)
• Robot type or machine model and the relevant axis (e.g. robot axis J3 or X/Y/Z axis of a CNC)
• Details regarding the mechanical design (brake yes/no, shaft design, flange)
• Information on the drive amplifier used and, if applicable, the encoder type

Based on this, suitable alternatives – such as motor-compatible versions of the same series – can be professionally and thoroughly examined. This is especially true for older systems.used FANUC spare parts, which have been professionally tested and refurbished, can be an economical option; transparent testing processes and defined return options are crucial.

For FANUC spare parts in Germany, you benefit from short delivery routes via the manufacturer's European warehouse and service network, as well as from specialized suppliers, so that critical components can usually be procured quickly. This allows for better planning of scheduled downtimes and a reduction in emergency orders.

Other typical questions

When should a servo motor be replaced and not just repaired?
Replacement is often advisable when recurring positional errors, unusual noises, significantly elevated temperatures, or regular drive alarms occur and cannot be clearly attributed to peripheral components such as cables, connectors, or drive amplifiers. A new or refurbished motor can also be the less risky solution after mechanical damage or in the case of heavily loaded axes in continuous operation.

What information do we need to provide you with a specific offer?
To provide you with an accurate quote, we generally only need the robot type or machine model, axis designation, part number of the existing motor, and ideally, photos of the nameplate. The more precise this information is, the faster we can determine which replacement solution – new part, exchange motor, or refurbished component – ​​is suitable for your specific situation.

What are the advantages of using genuine FANUC components compared to aftermarket versions?
Genuine FANUC parts are designed specifically for FANUC controllers and drive technology. This reduces the risk of unexpected incompatibilities, such as those related to parameterization, feedback, or mechanical fit, and ensures compatibility with manufacturer specifications. For many companies, this is also a significant factor from the perspectives of quality management, auditing, and machine safety.

How do we integrate new servo motors into existing systems?
When replacing a servo motor, installation, electrical connections, and commissioning should only be carried out by qualified personnel. In practice, motor parameters and, if applicable, encoder or sensor data are checked, reference runs are performed, and axes are tested for backlash, noise, and temperature development. This ensures that the new motor integrates seamlessly into your existing FANUC environment and achieves the required performance.