Product Brief

Technical Specifications

• Series Classification: B Series Low Rotor Inertia Goldline Servo Motor
• Frame Size: B-404 NEMA metric hybrid standard mounting flange
• Winding Voltage Class 21: 230 VAC single/three-phase compatible
• Feedback Configuration C: Built-in analog sine/cosine resolver single-turn position sensor
• Mechanical Variant 034: Extended rear shaft extension, standard keyed solid output shaft
• Continuous Rated Torque: 4.3 N·m
• Peak Overload Torque: 12.9 N·m (3× continuous torque, 500ms duty)
• Rated Operating Speed: 3000 RPM
• Maximum Mechanical Speed: 6000 RPM
• Rated Continuous Current: 4.0 A RMS
• Peak Current Draw: 12.0 A RMS
• Winding Insulation Class: Class H (180°C maximum winding temperature)
• Thermal Protection: Built-in bi-metal PTC thermal cutout switch (130°C trip threshold)
• Environmental Protection Grade: IP65 shaft seal, IP54 motor housing
• Vibration Standard: Grade N per DIN EN ISO 60034-14
• Unit Weight: 7.3 kg

Function Features

1. Ultra-low inertia rotor design for rapid cyclic reciprocating motion profiles
2. Class H high-temperature winding insulation enables sustained high overload operation
3. Resolver feedback immune to high-frequency industrial EMI interference
4. Dual-shaft design (front drive shaft + rear encoder extension shaft) for external tachometer mounting
5. Standard NEMA flange form factor for drop-in replacement with legacy servo motors

Performance Highlights

• Rotor inertia 60% lower than equivalent M-series medium-inertia motors of identical torque rating
• Zero-speed torque stability without cogging torque ripple
• Position repeatability ≤ ±0.8 arc-minute under cyclic full-load operation
• Continuous stable operation at up to 130°C winding temperature without demagnetization

Material Composition

• Motor Housing: Die-cast aluminum alloy black anodized anti-corrosion finish
• Stator Lamination: Cold-rolled grain-oriented silicon electrical steel
• Rotor Magnet: High-energy samarium-cobalt permanent magnet (high-temperature resistant)
• Output Shaft: Hardened quenched 4130 alloy steel with anti-wear surface treatment
• Terminal Connector Shell: Nickel-plated die-cast zinc alloy IP65 metal housing

Structural Characteristics

1. NEMA standard front mounting flange with tapped threaded mounting holes
2. Dual bearing shaft assembly with double-lip fluorine rubber shaft oil seal
3. Radial finned aluminum housing for passive convection heat dissipation
4. Rear extended secondary shaft for auxiliary encoder/tachometer mechanical coupling
5. Side-mounted IP65 hybrid power+feedback single connector terminal block

Working Principle

Advantage Highlights

1. Samarium-cobalt magnets eliminate high-temperature permanent magnet demagnetization risk during heavy overload cycles
2. Low-inertia rotor reduces machine cycle time by up to 40% for high-speed pick-and-place applications
3. NEMA standard mechanical dimensions simplify OEM equipment design interchangeability
4. Class H insulation extends service life in high-temperature cabinet installation environments
5. UL, CE certified for North American and European industrial machine compliance

Applicable Industries

Installation Requirements

1. NEMA flange mounting surface flatness tolerance ≤ 0.06 mm per 100 mm
2. Radial shaft misalignment with load coupling limited to ≤ 0.015 mm runout
3. Maintain minimum 40 mm clearance around cooling fins for natural airflow
4. Ground motor housing via dedicated PE earth terminal with 4mm² copper conductor
5. Connector cable minimum bend radius ≥ 7× cable outer diameter, no sharp bending angles

Operation Precautions

1. Mechanical operating speed must never exceed 6000 RPM overspeed limit
2. Avoid continuous torque overload exceeding 150% rated torque for longer than 30 seconds
3. Ambient operating humidity restricted to 5–95% RH with zero condensation
4. Do not subject motor housing to direct high-pressure coolant spray
5. Disconnect servo drive main power before disassembling motor hybrid connector