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Kollmorgen B-806-AA-91-TR
Product Overview:
The B-806-AA-91-TR is a high-performance, 3-phase permanent magnet brushless AC servo motor from Kollmorgen’s classic Goldline B family. It is designed for demanding industrial motion control applications requiring high continuous torque, low cogging, and excellent dynamic response. The “-91” suffix typically indicates a specific winding, feedback option (usually resolver or encoder), and connector configuration; “-TR” often denotes a special or tailored resolver/feedback variant.
Detailed content
Key Technical Specifications:
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Frame Size: B-806 (large frame, approx. 178 mm / 7″ square flange)
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Rated Power: ~15–21 kW depending on winding (typical for B-806: 15.3–21.7 kW / 20.5–29 HP)
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Rated Speed: 1500–3000 RPM (model-dependent)
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Continuous Stall Torque @ 40°C: approx. 109–117 N·m (80–86 lb-ft)
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Peak Torque: up to 2×–3× continuous rating
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Supply Voltage: 230/460 VAC (3-phase)
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Feedback Device: Typically resolver or Hi-Res encoder (AA-91 denotes specific feedback & connector option)
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Insulation Class: H (180°C)
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Protection Rating: IP65 (with shaft seal)
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Cooling: Natural convection / fan-assisted (depending on variant)
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Shaft: Keyed with or without seal; standard metric or NEMA dimensions
Construction & Materials:
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Rare-earth Neodymium Iron Boron (NdFeB) permanent magnets
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Laminated silicon-steel stator core
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Aluminum alloy housing with corrosion-resistant finish
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Double-shielded precision ball bearings
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Built-in thermal protector (thermostat) normally closed/open at ~145°C
Working Principle:
A permanent-magnet rotor is driven by a 3-phase sinusoidal stator current synthesized by a servo drive. Rotor position is fed back via resolver/encoder for commutation and closed-loop position/velocity control.
Installation Notes:
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Mount on a flat machined face using 4 bolts on the flange pilot
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Align shaft coupling to avoid side loads > specified radial/thrust limits
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Use shielded motor power & feedback cables, grounded at one end
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Ensure DC bus voltage of drive matches motor winding (check nameplate)
Application Areas:
Large CNC machine tools, heavy-duty packaging lines, printing presses, textile machinery, robotic joints with high payload.
