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FANUC A06B-1375-B390#0B41

FANUC A06B-1375-B390#0B41 Spindle Motor Overview

Basic Information

Model: A06B-1375-B390#0B41
Manufacturer: FANUC
Product Type: AC Spindle Motor (Alpha Series)

This model belongs to FANUC α series high-speed spindle motors widely used in CNC machining centers, lathes, and high-precision milling machines.

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Key Specifications

• Motor Type: α series spindle motor
• Model designation: α L8/12000
• Cooling method: Oil-cooled spindle motor
• Rated Power: 18.5 kW
• Maximum Output Power: 22 kW
• Maximum Speed: 12,000 rpm
• Application: High-speed CNC spindle drive
• Typical installation: Machining centers / turning centers

This motor is designed for continuous high-speed operation under heavy cutting loads.

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Model Code Meaning (Important for buyers)

A06B-1375-B390#0B41 breakdown

Section	Meaning
A06B	FANUC motor series
1375	α spindle motor family
B390	Motor size / power class
#0B41	Encoder, shaft, and mechanical configuration

The suffix #0B41 is critical — it defines encoder type, shaft shape, mounting, and connector configuration. Replacement motors must match this suffix to ensure compatibility.

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Key Features

1. High-speed machining capability

• Up to 12,000 RPM
• Designed for precision milling, drilling, and tapping
• Suitable for aluminum, steel, and high-speed cutting

2. Oil-cooled design

Oil cooling provides:

• Stable thermal control
• Longer bearing life
• Higher continuous power output
• Reduced thermal deformation

This is essential for 24/7 industrial machining.

3. High rigidity & torque

• High torque output for heavy cutting
• Stable performance at low and high speeds
• Excellent surface finish quality

4. High reliability industrial design

• Designed for continuous production environments
• Compatible with FANUC spindle amplifiers
• Proven long service life in CNC machines

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Typical Applications

This spindle motor is commonly used in:

• Vertical Machining Centers (VMC)
• Horizontal Machining Centers (HMC)
• CNC milling machines
• CNC lathes with live tooling
• Automotive and aerospace machining

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Compatible FANUC Systems

Usually paired with:

• FANUC spindle amplifiers (α series)
• FANUC CNC controls (0i / 16i / 18i / 21i / 30i etc.)

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Buying / Replacement Notes

When sourcing this motor, always confirm:

1. Full model including suffix #0B41
2. Encoder type compatibility
3. Shaft and flange dimensions
4. Oil cooling interface
5. Matching spindle amplifier model

A mismatch in suffix is the most common replacement mistake.

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Summary

FANUC A06B-1375-B390#0B41 is a high-power, oil-cooled α-series spindle motor designed for high-speed CNC machining. With 22 kW peak output and 12,000 rpm capability, it is ideal for demanding industrial production environments requiring precision, reliability, and long continuous operation.