FANUC A06B-0075-B003 – Compact 200V-Class AC Servo Motor for CNC Axis Drives

The FANUC A06B-0075-B003 is a compact AC servo motor from the α-series family, designed for precise, repeatable axis motion on CNC lathes, machining centers, grinders, and automated fixtures. From my experience, this model sits in the small-to-medium torque range and integrates cleanly with FANUC α/αi servo amplifiers in 200V-class systems. You might notice that motors with the “B003” option code typically feature a straight keyed shaft and are supplied without a holding brake—ideal when you want low-inertia response without the extra brake wiring or maintenance.

Order Placement Process & Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• 200V-class AC servo design – Pairs directly with FANUC α/αi servo amplifiers for stable, low-ripple torque.
• B003 option code – Typically a straight, keyed shaft without brake, simplifying mechanics when a brake isn’t required.
• High-resolution FANUC pulse coder – Reliable position feedback for smooth contouring and tight following error.
• Low-inertia rotor – Fast acceleration/deceleration on short-stroke axes and pick-and-place units.
• Sealed construction – IP-rated at the shaft/connector area when installed with proper seals; suitable for most shop-floor environments.
• Drop-in compatibility – Common mounting/connector style across many FANUC-equipped machines, easing retrofits.

Technical Specifications

Application Fields

This motor fits linear axes and rotary indexing where tight positioning and quick reversals matter. Typical uses include:

• CNC machining centers (X/Y/Z on compact VMCs, tool changers, and rotary tables)
• Turning centers (turret indexing, sub-spindle feeds, loader axes)
• Grinders and EDM positioning stages requiring smooth low-speed creep
• Pick-and-place units and compact gantries in assembly/test automation

“We swapped in the A06B-0075-B003 on a small drill-tap center. Tuning was straightforward and the axis response improved right away, especially on short moves.” – Maintenance Supervisor, precision machining shop

Advantages & Value

• Reliability you can plan for – FANUC α motors are known to run for years with minimal drift or noise.
• Compatibility – Directly replaces similar α/αi 200V-class small-frame motors; cable/connector styles are standardized in many cases.
• Total cost of ownership – Stable spares availability and predictable service paths reduce unplanned downtime costs.
• Support-ready – Easy parameter matching with FANUC CNCs and amplifiers keeps commissioning time short.

Installation & Maintenance

• Mounting and alignment – Use the flange pilot for concentricity; align couplings to minimize radial/axial load on front bearings.
• Wiring – Route U/V/W power and encoder cables separately to reduce noise; ensure proper PE ground and strain relief.
• Environment – Keep within 0–40°C ambient and avoid coolant spray without proper sealing; allow airflow for natural cooling.
• Safety – Lock out/tag out before service; verify insulation resistance if the motor has been in storage.
• Routine checks – Inspect connectors/seals, listen for bearing noise at low RPM, and keep the housing clean of chips and dust.
• Encoder considerations – If your system uses an absolute reference, maintain the CNC’s backup battery so position data isn’t lost.

Quality & Certifications

• Conformity: CE marking, UL Recognized, and RoHS compliance in most shipments
• Manufacturing standards: Produced under ISO-certified quality systems
• Warranty: 365-day warranty coverage as stated above

If you’re replacing an existing unit, sharing your amplifier model and axis data helps confirm encoder optioning and cable compatibility. One thing I appreciate about this motor is how predictable it is to commission—most of the time, it’s set the parameters, tune the loop, and you’re cutting chips again.