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Kollmorgen B-204-A-21

Product Name:​ Goldline B-Series AC Brushless Servo Motor
Product Brief:​ Legacy low-inertia brushless servo motor with pre-mounted resolver, rear shaft extension and open keyway, designed for rapid accel/decel machine axes.
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Detailed content

Technical Specifications:
  • Series: Goldline B, Frame 20
  • Rated Output: 0.82 kW / 1.1 hp
  • Supply: 230 VAC
  • Rated Current: 2.7 Arms
  • Stall Torque: 4.7 Nm at 25 °C
  • Peak Torque: 10.1 Nm
  • Rated Speed: 1900 rpm
  • Rotor Inertia: 1.729 kg·cm²
  • Feedback: Built-in resolver
  • Shaft: Open keyway, rear extension
  • Insulation: Class H
  • Protection: IP65
  • Flange: 92 × 92 mm
  • Connector: Bayonet type (no mating plug supplied)
  • Thermostat: Built-in
    Functional Features:​ Extremely low inertia rotor, robust resolver feedback immune to noise, Class H insulation for high thermal headroom.
    Application Scenarios:​ Legacy machine retrofits, packaging machines, textile feeders, metal forming presses.
    Installation Requirements:​ Square flange bolt pattern, separate resolver cable shielding, maintain clearance for rear shaft if auxiliary encoder mounted.
    Usage Notes:​ Obsolete series—verify spare parts availability, match drive commutation to resolver, do not exceed 230 VAC ±10 %.

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