Contact Info

A06B-0142-B176

Home / Product/ Fanuc
A06B-0142-B176
May 13, 2026

A06B-0142-B176

FANUC AC Servo Motor Model: A06B-0142-B176 αi A12/2000 Series, Medium-Inertia, 2.1kW, Straight Shaft with Brake, Incremental Encoder 1. Product Overview 1.1 General Description The A06B-0142-B176 is a medium‑inertia AC servo motor from the FANUC αi A12/2000 series. It provides high torque, high precision and stable operation for heavy‑duty industrial motion control applications. This model features a straight keyed shaft, 2 Nm holding brake, aI64 incremental encoder, and IP65 protection, suitable for machine tools and automation environments requiring vertical axis holding or crash prevention. 1.2 Part Number Definition A06B：FANUC servo motor series prefix 0142：αi A12 frame size, medium inertia, 2000 rpm base motor B176：Straight keyed shaft, 2 Nm brake, aI64 incremental encoder, standard flange #7008：IP65 protection (if specified) 1.3 Key Applications CNC machining centers, heavy‑duty lathes, grinding machines Vertical axes, Z‑axes, and gantry systems requiring holding brake Industrial robots, heavy automated assembly lines High‑torque, medium‑speed applications (2000 rpm) Metalworking, packaging, textile machinery General automation and material handling equipment

Description

发那科6.jpg

2. Technical Specifications

2.1 Electrical & Performance

  • Rated Output Power：2.1 kW

  • Rated Speed：2000 rpm

  • Rated Voltage：186 VAC (3‑phase)

  • Rated Current：7.4 A

  • Rated Frequency：133 Hz

  • Continuous Torque：12 Nm

  • Stall Torque：Approx. 30 Nm

  • Stall Current：Approx. 22 A

  • Rotor Inertia：Medium

  • Encoder：aI64 incremental encoder (65,536 ppr)

  • Shaft：Straight keyed shaft, 35 mm diameter

  • Brake：2 Nm holding brake (DC)

  • Insulation Class：F (155°C)

  • Cooling：Natural air cooling

  • Protection Grade：IP65 (#7008) / IP54 standard

  • 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. 19.0–20.3 kg

3. Mechanical Dimensions & Mounting

3.1 Shaft & Flange

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

  • Shaft Diameter：35 mm

  • Keyway：10 mm × 8 mm × 45 mm (standard)

  • Mounting：Flange‑mounted, 4 × M8 bolts on 85 mm pitch circle

3.2 Cable Connections

  • Power Connector：4‑pin (U, V, W, PE)

  • Encoder Connector：20‑pin (aI64 encoder interface)

  • Brake Connector：2‑pin (DC brake)

  • Cable Entry：Sealed glands (IP65 with #7008)

4. Product Features

4.1 High‑Torque Density

12 Nm continuous torque, 30 Nm peak torque, suitable for heavy loads and high‑force applications.

4.2 Incremental aI64 Encoder

65,536 ppr provides precise position/speed feedback for closed‑loop control; compatible with FANUC αi‑B series amplifiers.

4.3 Medium‑Inertia Rotor

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

4.4 2 Nm Holding Brake

Integrated DC brake holds vertical axes at rest, prevents free fall when power is off; brake released by 24 VDC.

4.5 Rigid & Durable Construction

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

4.6 Standard Compatibility

Directly compatible with FANUC αi‑B series servo amplifiers; plug‑and‑play replacement for existing A12/2000 motors.

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.

  • Brake is for holding only; do not use for dynamic stopping.

5.2 Mechanical Installation

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

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

  3. Shaft Connection：Install suitable coupling (bellows, rigid, jaw). Keep coaxiality ≤0.1 mm runout to avoid vibration, noise or bearing failure.

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

5.3 Electrical Wiring

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

  2. Power Wiring：Connect U, V, W, PE to motor power connector. 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. Brake Wiring：Connect 24 VDC to brake terminals; brake engages when power is off, releases when energized.

  5. Cable Routing：Avoid sharp bends (min. bend radius = 10 × cable diameter), heavy compression or crossing with high‑voltage cables. Secure cables with ties to prevent strain.

  6. 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, power and brake wiring.

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

  • Check brake operation: motor stops, brake holds load; motor run, brake releases.

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 Brake Usage

Brake is for static holding only. Do not use for dynamic braking or emergency stop. Release brake before motor operation.

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 cooling fins unobstructed.

  • Monthly Inspection：Check mounting bolts, couplings, 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.

  • Brake Check：Test brake holding force and release function periodically.

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 brake 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-0142-B176

  • Description：AC Servo Motor, αi A12/2000, 2.1kW, 2000rpm, Medium Inertia, Straight Keyed Shaft, 2 Nm Brake, aI64 Incremental Encoder, IP65 (#7008 optional)


Get a Quote

Search

Categories

pages