FANUC A06B-0373-B177 AC Servo Motor with Brake for CNC and Precision Motion Systems

Product Overview

The FANUC A06B-0373-B177 is an AC servo motor designed for CNC equipment and industrial motion-control applications where stable axis response, accurate positioning, and repeatable machine performance are essential. In the replacement market, this model is commonly associated with the A2/3000 configuration and is regularly selected for service, rebuild, and maintenance work where preserving original FANUC compatibility is important.

What makes this motor especially relevant in industrial aftersales channels is its combination of a tapered shaft, integrated brake, and i64 encoder feedback. These characteristics make it a practical option for users who need a like-for-like servo replacement that supports consistent motion behavior and straightforward integration into compatible machine assemblies.

Technical Data

*Public listings are not fully uniform on voltage presentation for this model, so buyers should confirm the exact nameplate data for the unit being purchased.

The most consistently repeated market-listed details for this motor are A2/3000, 0.5 kW output, 2 Nm stall torque, 3000 RPM, 2.6 A, 3-phase, 200 Hz, tapered shaft, brake, and i64 encoder feedback. Some listings describe the motor as 129 V, while one listing presents 200 V, so exact electrical identification should be matched against the installed unit when application compatibility is critical.

Built for Stable CNC Servo Performance

In real production environments, servo motors need to do far more than deliver rotational movement. They are expected to support controlled acceleration, stable deceleration, repeatable axis travel, and dependable response during continuous machine operation. The A06B-0373-B177 is well suited to that role in CNC and automated equipment where original motion characteristics need to be maintained during repair or replacement work.

The integrated brake is particularly useful in applications that require holding performance or controlled stopping, while the tapered shaft structure supports secure mechanical coupling in matching assemblies. Combined with i64 encoder feedback, this motor fits the needs of buyers who are focused on restoring machine function with a compatible FANUC servo motor rather than adapting an alternative platform.

Key Features

• FANUC AC servo motor for CNC and industrial automation systems

• A2/3000 motor configuration

• 0.5 kW rated output

• 2 Nm stall torque

• 3000 RPM rated speed

• Tapered shaft design for compatible mechanical fitment

• Built-in brake for stopping and holding support

• i64 encoder feedback for closed-loop control applications

• Commonly listed for repair, rebuild, and replacement projects

Application Advantages

For maintenance teams and CNC spare-parts buyers, the A06B-0373-B177 is a strong choice when the goal is to restore original machine behavior with minimal system change. Instead of relying on a general substitute, buyers searching for this part number are usually looking for a matching FANUC motor that supports established control architecture, mechanical fit, and predictable servo response. This is an inference based on how the part is described and sold in industrial replacement channels.

This motor is commonly relevant for CNC machine tools, industrial automation systems, servo axis replacement work, refurbishment programs, and maintenance inventories. In these environments, exact compatibility and dependable performance are often more valuable than broad interchangeability, which is why part-specific FANUC servo motors remain important in the aftermarket.

FAQ

Q1: What type of product is the FANUC A06B-0373-B177?
A: It is an AC servo motor used in CNC machinery and industrial motion-control systems. In the market, it is consistently described as a FANUC servo motor in the A2/3000 class, making it suitable for applications where controlled axis movement and reliable positioning are required.

Q2: Does the A06B-0373-B177 include a brake?
A: Yes. Public product listings consistently describe this motor as a brake-equipped version. That makes it especially useful in applications where holding force or controlled stopping is important, such as vertical axes or machine systems that require stable positioning during pauses or shutdown.

Q3: What shaft style does this motor use?
A: This model is commonly listed with a tapered shaft. Shaft style is a critical detail in servo replacement work because it affects mechanical fit, coupling compatibility, and ease of installation in an existing machine assembly.

Q4: What feedback type is associated with the A06B-0373-B177?
A: Public listings commonly associate this motor with i64 encoder feedback. That feedback configuration is important in closed-loop motion control because it supports accurate position and speed monitoring within compatible FANUC systems.

Q5: Is this motor suitable for replacement and maintenance projects?
A: Yes. This model is well suited for CNC repair, industrial maintenance, machine rebuild, and spare-parts sourcing where maintaining original FANUC compatibility is important. Buyers typically choose this type of motor when they want to restore the installed system with a matching component rather than redesign the motion setup around a different motor platform. This last point is an inference based on how the motor is presented across replacement-market listings.