The FANUC A06B-0373-B577#7008 is an Alpha 2/3000 AC servo motor configured with a straight keyed shaft, no holding brake, and an I64 incremental pulse coder. It provides precise rotary movement and feedback for compatible FANUC CNC machine-axis systems.

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Product Details

Brand: FANUC
Part Number: A06B-0373-B577#7008
Base Number: A06B-0373-B577
Alternative Formats: A06B0373B577#7008 / A06B0373B5777008
Product Type: AC Servo Motor
Motor Model: Alpha 2/3000
Motor Output: 0.5 kW
Output Speed: 3,000 min⁻¹
Rated Torque at Stall: 2.0 Nm
Shaft Type: Straight Shaft
Shaft Modification: Keyed
Holding Brake: Not Included
Feedback Detector: I64 Incremental Pulse Coder
Pulse-Coder Resolution: 65,536 divisions per revolution
Modification Suffix: #7008
Product Family: A06B-0373
Availability: Contact us for current stock and lead time

Motor and Feedback Function

The A06B-0373-B577#7008 receives controlled power from a compatible FANUC servo amplifier and converts it into regulated machine-axis movement. Its I64 incremental pulse coder returns position and speed information to the servo-control system.

Because the I64 is an incremental detector, it does not retain absolute machine position in the same way as an A64 or A1000 absolute pulse coder. Reference-position return may be required according to the CNC and machine configuration.

B577 and #7008 Configuration

The complete ordering number identifies the following configuration:

• A06B-0373: Alpha 2/3000 motor family
• B577: Straight shaft, no brake and I64 incremental feedback
• #7008: GE FANUC nameplate-series modification with keyed shaft

The #7008 suffix must be retained in the product title, quotation and compatibility check. The keyed shaft is a mechanical feature and should not be omitted when comparing replacement motors.

Related Model Differences

• A06B-0373-B077: Taper shaft with I64 pulse coder
• A06B-0373-B575: Straight shaft with A64 absolute pulse coder
• A06B-0373-B577: Straight shaft with I64 incremental pulse coder
• A06B-0373-B588: Straight shaft with A1000 absolute pulse coder
• A06B-0373-B677: Straight shaft with brake and I64 pulse coder

The A06B-0373-B577#7008 is therefore not an exact replacement for a tapered-shaft, absolute-feedback or braked version.

#7008 and #0008 Reference

Some established FANUC parts databases cross-reference A06B-0373-B577#7008 with A06B-0373-B577#0008. The mechanical and feedback descriptions are commonly shown as Alpha 2/3000, straight keyed shaft and I64.

However, quotations and orders should use the complete number printed on the original motor nameplate. Do not automatically change #7008 to #0008 without confirming the required nameplate and machine configuration.

Compatibility Check

Before ordering, please verify:

• Complete number A06B-0373-B577#7008
• Alpha 2/3000 motor specification
• Straight keyed-shaft dimensions
• I64 incremental pulse-coder compatibility
• No-brake configuration
• Power and feedback connectors
• Mounting flange and coupling
• FANUC servo-amplifier model
• CNC parameters and reference-return procedure

Sales and Support

This motor may be considered when diagnosing I64 feedback alarms, positioning errors, abnormal bearing noise, overheating, winding faults, damaged connectors or shaft wear. The cables, amplifier, coupling and mechanical load should also be checked before replacement.

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