The FANUC A06B-0372-B588 is an Alpha 2/2000 AC servo motor designed for accurate motion control in compatible FANUC CNC and industrial machine systems. This configuration features a straight shaft, no holding brake, and a high-resolution A1000 absolute pulse coder.

• 100% function tested before shipment
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• Testing video provided upon request

Product Details

Brand: FANUC
Part Number: A06B-0372-B588
Alternative Format: A06B0372B588
Product Type: AC Servo Motor
Motor Model: Alpha 2/2000
Motor Output: 0.4 kW
Output Speed: 2,000 min⁻¹
Rated Torque at Stall: 2.0 Nm
Shaft Type: Straight Shaft
Holding Brake: Not Included
Feedback Detector: A1000 Absolute Pulse Coder
Pulse-Coder Resolution: 1,000,000 divisions per revolution
Product Family: A06B-0372
Application: Compatible FANUC Alpha Servo Systems
Availability: Contact us for current stock and lead time

Motor and Feedback Function

The A06B-0372-B588 receives controlled power from a compatible FANUC servo amplifier and produces precise rotary movement for a machine axis. The integrated A1000 absolute pulse coder provides high-resolution position and speed feedback to the servo-control system.

FANUC documentation specifies that absolute-position detection requires the appropriate backup battery in the CNC or servo amplifier. If the battery becomes discharged or is disconnected incorrectly, reference-position recovery may be required even when the motor itself is operating normally.

B588 Configuration

The complete B588 designation identifies three important characteristics:

• B5: Straight-shaft, non-braked motor configuration
• 88: A1000 absolute pulse coder
• A06B-0372: Alpha 2/2000 motor family

The A06B-0372-B588 should not be described as an I64 incremental-encoder motor or an A64 absolute-encoder motor. These feedback detectors have different specifications and should not be exchanged without confirming the CNC, servo amplifier, feedback cable and parameter configuration.

Related Model Differences

Related Alpha 2/2000 motors include:

• A06B-0372-B088: Taper shaft, no brake, A1000 pulse coder
• A06B-0372-B588: Straight shaft, no brake, A1000 pulse coder
• A06B-0372-B688: Straight shaft with brake, A1000 pulse coder
• A06B-0372-B575: Straight shaft, no brake, A64 pulse coder
• A06B-0372-B577: Straight shaft, no brake, I64 pulse coder

Matching motor output and mounting size do not confirm interchangeability when the shaft, brake or feedback detector differs.

Modification-Suffix Notice

Some units include a suffix such as #0000, #7000, #7008, #0075, #0076, #C000 or #U008. These codes may identify different nameplates, approvals, shaft keyways, sealing levels or production modifications.

For an exact replacement, compare the complete FANUC number on the original nameplate. Do not assume that specifications associated with a keyed or IP-rated suffix also apply to the unsuffixed A06B-0372-B588.

Compatibility Check

Before ordering, please verify:

• Complete motor number and modification suffix
• Alpha 2/2000 motor requirement
• Straight-shaft dimensions and keyway arrangement
• A1000 absolute pulse-coder compatibility
• No-brake configuration
• Power and feedback connectors
• Mounting flange and machine coupling
• FANUC servo-amplifier model
• CNC parameters and absolute-position battery status

Sales and Support

The A06B-0372-B588 may be considered when diagnosing A1000 pulse-coder alarms, positioning errors, abnormal bearing noise, overheating, winding faults, damaged connectors or shaft damage. The cables, amplifier, coupling and machine load should also be inspected before replacement.

REACO CNC supplies tested FANUC servo motors with warranty support, testing-video service and worldwide express delivery. Please provide a clear photo of the complete motor nameplate and shaft when requesting a quotation.