A06B-0123-B075 Fanuc Ac Servo Motor Alpha 3/3000

Buy online your A06B-0123-B075 Fanuc Servo Motor Alpha 3/3000 reference A06B-0123-B075 from our US e-store Cnc-shopping USA, specialist in CNC machine-tools spare parts.

This FANUC AC servo from the Alpha 3/3000 family is a field proven axis motor used across many FANUC controlled machine tools. It serves as a direct CNC axis drive motor, delivering accurate positioning with an A64 absolute encoder and a taper shaft with key for reliable coupling to ball screws, gearboxes or pulleys. Commonly sourced as a replacement motor and stocked spare part, it helps maintenance teams shorten repair turnaround and secure machine uptime.

The unit operates as a three phase AC servo designed for use with FANUC Alpha series servo amplifiers. Rated speed is 3000 rpm, matching the Alpha 3 family profile found on machining centers, turning machines and grinders that require quick response and stable axis control. The A64 absolute feedback retains position through power cycles within the CNC system, which simplifies homing procedures on many installations and supports repeatable motion after service.

Mechanical fit is defined by the Alpha series square frame flange pattern with a keyed taper shaft, which provides secure torque transfer and easy extraction during service. The variant often appears on the nameplate as A06B-0123-B075#7000, indicating the factory option set that includes the absolute encoder and the specified shaft style. Matching these codes against the removed motor ensures a true drop in replacement with no adaptation on the production floor.

In typical applications this motor drives linear axes or rotary feed axes on FANUC based equipment where precise contouring and consistent servo stiffness are required. When paired with the proper Alpha amplifier rating and CNC control parameters, it provides stable performance for day to day machining and supports both repair interventions and retrofit programs on older cells where the original part has become an obsolete automation part.

Reference: A06B-0123-B075 (compatible with A06B-0123-B075#7000)

Manufacturer: FANUC

Product family: FANUC AC Servo Motor Model Alpha 3/3000

Country of manufacture: Japan

Rated speed: 3000 rpm

Feedback device: FANUC A64 absolute encoder

Shaft interface: Taper shaft with key

Mounting: Square frame flange mount typical of FANUC Alpha series

Typical marking: A06B-0123-B075#7000 on the motor nameplate

Availability: Shipment within 3 days, depending on inventory

Condition: Tested unit supplied with warranty

For maintenance teams this model is commonly used as a field replacement to restore a down axis after encoder faults, bearing noise or winding failures on the original motor. Many shops keep one as a stocked replacement unit to limit machine downtime during unplanned stops and to support preventive changeouts during scheduled overhauls.

Each motor is tested by skilled engineers on dedicated CNC simulators with servo motors to verify encoder signals, phase integrity and stable operation under load. Units are packed for industrial transport to protect the shaft and feedback connector. Many stocked items ship directly from our Florida facility. Most products are shipped from our Florida warehouse unless otherwise specified on the product page.

Cnc-shopping USA supports emergency sourcing for obsolete parts, with repair service or exchange service available for selected references. Keeping a suitable spare or arranging a tested refurbished unit helps reduce unexpected downtime and extends the service life of aging FANUC installations.

Frequently asked questions about a06b-0123-B075:

What feedback does this motor use and why does it matter?
It uses a FANUC A64 absolute encoder, which provides absolute position data to the CNC. This reduces homing routines on many machines and supports fast restart after maintenance or power loss.

Is the shaft configuration compatible with ball screw couplings?
This variant has a taper shaft with key, widely used with keyed hubs and puller compatible tapers. Verify your coupling bore and keyway dimensions against the removed motor for a direct fit.

Will it run with my existing FANUC Alpha amplifier?
It is designed for FANUC Alpha series servo amplifiers. Match the motor series and option code to your original unit and confirm the amplifier rating to ensure correct pairing.

What does the #7000 option code indicate?
The code identifies the factory configuration, including encoder type and mechanical interface. Order the same option code as your original nameplate to keep cabling, feedback and mounting identical.

Does this version include a holding brake?
This reference is commonly supplied without a brake. If your axis requires a brake, check the removed motor nameplate and consult us to source the correct variant.

What is the typical lead time and shipping origin?
Listed lead time is shipment within 3 days, subject to availability. Many items dispatch from our Florida warehouse for fast delivery within the US.