Digital guide
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- Kollmorgen B-206-A-31
Detailed content
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Rated Speed: 1400 rpm at rated power
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Max Speed: 1400 rpm (B-206-A variant, non-overhauled catalog)
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Stall Torque (40 °C): 6.51 Nm
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Stall Torque (25 °C): 6.9 Nm
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Rated Power: 0.97 kW (1.3 hp)
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Torque Constant: 2.15 Nm/Arms
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Back EMF: 130 Vrms/krpm
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Resistance: 8.82 Ω line-line
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Inductance: 32 mH line-line
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Rotor Inertia: 0.00222 kg·m² class (B-206 family)
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Weight: 16.7 kg (including brake/option variants per distributor data)
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Protection: IP67 with seal rings; dust-tight, brief water immersion (distributor limit 30 min at 6 ft depth)
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Thermal: Built-in thermostat monitoring winding temperature
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Construction: Low-inertia rotor, cast/aluminum frame, explosion-proof design option, black enamel or anodized finish
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Shaft: Defined by suffix 31 (keyway/smooth + connector orientation per legacy Goldline code table)
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Mounting: Flange or foot mount per B-series mechanical drawing; align coupling to avoid radial shaft load
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Applications: High-acceleration rotary axis, hazardous-environment machinery, underwater-capable actuators, legacy CNC retrofit
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Precautions: Resolver alignment mandatory on replacement; IP67 submersion beyond catalog limit damages seals; match drive bus voltage to winding (typically 320 VDC class)











