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Kollmorgen B-206-C-94-095

Model Code: B-206-C-94-095

Product Overview:
The B-206-C-94-095 is a brushless DC servo motor from Kollmorgen’s B-Series product line. It is a high-torque-density motor designed for demanding motion control applications.

Detailed content

Technical Specifications:

Parameter Value
Motor Type Brushless DC (BLDC) / Permanent Magnet Synchronous
Frame Size 115 mm (flange)
Stack Length 206 mm
Rated Torque (Continuous) 4.47 Nm
Peak Torque 13.4 Nm
Rated Speed 3000 RPM
Max Speed 5000 RPM
Rated Power (Continuous) 1.4 kW
Peak Power 4.2 kW
Voltage (Rated) 48 VDC (bus) / 340 VDC (peak)
Winding Configuration Delta (Δ)
Thermal Resistance (Rth) 2.8 K/W
Thermal Time Constant (τth) 18 min
Moment of Inertia (Rotor) 1.9 × 10⁻⁴ kg·m²
Weight 6.8 kg
Shaft Diameter 19 mm with keyway
Shaft Extension 40 mm
Feedback Options Resolver, BiSS-C, EnDat 2.2
Protection Rating IP65 (with optional seal kit)
Insulation Class F (155°C)
Bearing Type Deep groove ball bearings (front), angular contact (rear)
Ambient Temp (Operating) -10°C to +40°C (derate above 40°C)
Certifications CE, UL, cULus

Functional Features:

  • High torque density — 4.47 Nm continuous in compact 115 mm frame
  • Wide speed range — constant torque up to 3000 RPM, field weakening to 5000 RPM
  • Low cogging torque — smooth motion at low speeds
  • Integrated temperature sensor (PTC 1kΩ) in windings
  • Multiple feedback options — resolver, BiSS-C, EnDat 2.2

Structural Characteristics:

  • 115 mm square flange with 4 mounting holes (M6)
  • Smooth cylindrical body with precision-ground shaft
  • Front shaft seal (IP65 optional)
  • Terminal box with M23 connector for power and feedback

Working Principle:
Permanent magnets on the rotor interact with the stator’s three-phase windings. The servo drive commutates the phases electronically based on rotor position feedback (from resolver or encoder). This produces a rotating magnetic field that drives the rotor with precise torque control.

Key Advantages:

  • 4.47 Nm continuous torque in a 115 mm frame — exceptional torque density
  • 5000 RPM max speed — suitable for high-speed applications
  • Low maintenance — brushless design eliminates brush wear
  • Multiple feedback compatibility — flexible system integration

Applicable Industries:

  • Robotics
  • CNC machines
  • Packaging machinery
  • Printing presses
  • Material handling

Installation Requirements:

  • Mount on rigid surface with M6 bolts, torque to 12 Nm
  • Align coupling to shaft with ≤ 0.05 mm TIR
  • Use insulated bearing housing if driven equipment creates shaft voltage
  • Ground motor frame to protective earth

Usage Precautions:

  • Do not exceed 5000 RPM
  • Derate torque by 2% per °C above 40°C ambient
  • Do not apply external axial loads > 50 N
  • Use Kollmorgen AKD drive for optimal performance

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