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A06B-0143-B075#7008

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A06B-0143-B075#7008
May 13, 2026

A06B-0143-B075#7008

FANUC AC Servo Motor Model: A06B-0143-B075#7008 αi A12/3000 Series, Medium‑Inertia, 2.8kW, 3000rpm, Straight Shaft with Keyway, No Brake, Absolute Encoder, IP54 1. Product Overview 1.1 General Description The A06B-0143-B075#7008 is a high‑speed, medium‑inertia AC servo motor from the FANUC αi A12/3000 series. It delivers 2.8 kW rated power, 12 Nm continuous torque, and 3000 rpm base speed, optimized for high‑speed CNC machining and dynamic automation. This model features a straight shaft with keyway, no holding brake, aI64 absolute encoder, natural cooling, and IP54 protection grade (#7008), suitable for high‑speed, medium‑torque applications without vertical‑axis holding requirements. 1.2 Part Number Definition A06B: FANUC servo motor series prefix 0143: αi A12 frame size, medium inertia, 3000 rpm base motor B: AC servo motor type 0: Straight shaft, no brake 75: aA64 absolute encoder (65,536 ppr) #7008: Straight shaft with keyway, IP54 protection grade 1.3 Key Applications High‑speed CNC machining centers, lathes, and grinding machines High‑speed automation gantries and material handling systems Rotary axes requiring 3000 rpm and precise positioning Medium‑torque, high‑speed industrial applications (non‑vertical axes) Metalworking, packaging, and textile machinery

Description

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2. Technical Specifications

2.1 Electrical & Performance

  • Rated Output Power: 2.8 kW

  • Rated Speed: 3000 rpm

  • Rated Voltage: 155 VAC (3‑phase)

  • Rated Current: 12 A

  • Rated Frequency: 200 Hz

  • Continuous Torque: 12 Nm

  • Stall Torque: Approx. 26 Nm

  • Stall Current: Approx. 15 A

  • Rotor Inertia: Medium

  • Encoder: aA64 absolute encoder (65,536 ppr)

  • Shaft: Straight shaft with keyway (φ22 mm)

  • Brake: None

  • Insulation Class: F (155°C)

  • Cooling: Natural cooling (no fan)

  • Protection Grade: IP54 (#7008)

  • Operating Ambient Temperature: 0°C to +55°C

  • Storage Ambient Temperature: −20°C to +70°C

  • Relative Humidity: 10%–90%, non‑condensing

  • Vibration Resistance: Up to 5G

  • Weight: Approx. 24 kg

3. Mechanical Dimensions & Mounting

3.1 Shaft & Flange

  • Flange: Standard A12 flange (110 mm × 110 mm)

  • Mounting: 4 × M8 bolts on 85 mm pitch circle

  • Shaft: Straight shaft (φ22 mm) with keyway, no taper

3.2 Cable Connections

  • Power: Flying leads (U, V, W, PE)

  • Encoder: 20‑pin connector (aA64 absolute encoder)

  • Brake: Not applicable (no brake)

4. Product Features

4.1 High‑Speed Performance

3000 rpm base speed enables high‑productivity machining and fast axis movement.

4.2 Medium‑Inertia Rotor

Balances dynamic response and load stability; ideal for variable inertia or frequent speed changes.

4.3 High‑Resolution Absolute Encoder

aA64 absolute encoder (65,536 ppr) provides precise position/speed feedback for closed‑loop control; no battery required for absolute position retention, compatible with FANUC αi‑B series amplifiers.

4.4 Straight Shaft with Keyway

Standard φ22 mm straight shaft with keyway enables simple, secure connection to loads via standard couplings; suitable for general‑purpose high‑speed applications.

4.5 Natural Cooling

No fan required; compact design with efficient heat dissipation for continuous duty at rated load.

4.6 Rigid Construction

Cast aluminum housing, reinforced bearings, and sealed design ensure long life under heavy load and high vibration.

4.7 IP54 Protection (#7008)

Protected against dust ingress and water splashes from any direction; suitable for general industrial environments.

5. Installation Instructions

5.1 Safety Precautions

  • Disconnect all power before installation, wiring, or maintenance.

  • Ensure motor and amplifier are properly grounded to prevent electric shock.

  • Never operate motor beyond rated specifications.

  • No brake: Do not use for vertical‑axis applications requiring static holding.

5.2 Mechanical Installation

  1. Inspection: Check housing, flange, and shaft for damage, deformation, or corrosion.

  2. Mounting: Align flange with machine surface. Tighten 4 × M8 bolts evenly to 20–22 Nm for flatness and concentricity.

  3. Shaft Connection: Use standard coupling for φ22 mm straight shaft with keyway. Ensure proper torque to avoid slippage.

  4. Shaft Protection: Avoid heavy impact, excessive radial load, or axial pressure.

5.3 Electrical Wiring

  1. Cable Selection: Use FANUC‑specified shielded power/encoder cables with adequate current rating.

  2. Power Wiring: Connect flying leads U, V, W, PE per phase sequence; torque terminals to 1.5–1.8 Nm.

  3. Encoder Wiring: Connect encoder cable to 20‑pin connector; verify pin assignment per FANUC diagram.

  4. Cable Routing: Avoid sharp bends (min. 10 × cable diameter), heavy compression, or crossing with high‑voltage cables.

  5. Grounding: Connect motor frame PE terminal to system ground bus.

5.4 Pre‑Operation Check

  • Confirm all mounting bolts and cable connections are secure.

  • Verify correct encoder and power wiring.

  • Perform servo amplifier initialization, homing, and no‑load test run at low speed to confirm smooth operation.

  • Check for abnormal noise or vibration during operation.

6. Operation Precautions

6.1 Do Not Exceed Ratings

Avoid operation above rated voltage, speed, or torque. Continuous overload causes overheating, demagnetization, or permanent damage.

6.2 Avoid Frequent Reversals

Minimize prolonged rapid forward/reverse jogging to reduce overcurrent and thermal stress.

6.3 Environmental Limits

Do not use in explosive, corrosive, or conductive dust environments. Ambient temperature 0°C to +55°C.

6.4 No Brake Usage

This model has no holding brake; do not use for vertical axes or applications requiring static holding when power is off.

6.5 No Unauthorized Disassembly

Do not open motor housing or tamper with encoder/rotor. Warranty void if disassembled or modified.

6.6 Abnormal Conditions

Stop operation and cut power immediately if abnormal noise, vibration, overheating (case >80°C), or servo alarms occur.

7. Maintenance & Storage

7.1 Regular Maintenance

  • Cleaning: Wipe dust, oil, and debris from motor surface; keep housing clean for efficient heat dissipation.

  • Monthly Inspection: Check mounting bolts, couplings, and cable terminals for looseness; tighten as required.

  • Bearing Lubrication: Factory‑lubricated for life under normal conditions; replace bearings if noise/vibration increases.

  • Encoder Check: Verify encoder cable connections and seal integrity.

7.2 Storage

  • Store in dry, cool, clean indoor space: temperature 5°C–35°C, relative humidity ≤85% (non‑condensing).

  • Keep in original packaging if possible. Avoid direct sunlight, moisture, and dust.

  • Do not stack heavy objects on motor.

  • Shelf Life: 12 months in original sealed packaging under recommended conditions.

8. Quality & Warranty

8.1 Compliance

Manufactured to FANUC’s stringent industrial quality and safety standards.

8.2 Testing

100% factory‑tested for dynamic balance, electrical performance, insulation resistance, and encoder function before shipment.

8.3 Warranty

12 months from delivery date under normal use and proper installation. Warranty void if motor is disassembled, modified, or damaged by misuse.

9. Ordering Information

  • Model Number: A06B-0143-B075#7008

  • Description: AC Servo Motor, αi A12/3000, 2.8kW, 3000rpm, Medium Inertia, Straight Shaft with Keyway, No Brake, aA64 Absolute Encoder, Natural Cooling, Flying Leads, IP54


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