AIM-LBe 400Vdc – Single axial flux in-runner motor

Product Overview

The AIM-LBe 400Vdc is an axial flux in‑runner motor optimized for applications demanding very high power density within a compact, robust package. With a rated peak power of 170 kW and a mass of 12,40 kg (13.71 kW/kg), it targets automotive, traction, aviation and energy‑recovery systems where efficiency, torque density and ingress protection are critical.

Key Technical Advantages

• Best‑in‑class power density: 13.71 kW/kg — maximizes power per unit mass for weight‑sensitive systems.
• High torque and efficiency: 390 Nm peak torque and 98.2% peak efficiency — reduces energy losses and improves system range/endurance.
• Compact footprint: Φ270×73 mm package with low rotor inertia (0.02660 kg*m²) for fast dynamic response.
• Wide electrical operating range: 120–800 VDC input and Kv = 13.81 RPM/Vdc enabling flexible system integration.
• Robust environmental design: IP67 ingress protection and operating ambient range -40 to 60 °C for harsh environments and high altitude (up to 14 000 m).
• Manufacturing and compliance: Automotive‑grade product compliant with LV148 and CE certified; 100% manufacturing in Europe supports quality control and supply‑chain traceability.
• Production readiness: Designed for cost‑competitive mass production with Plug&Play connection (U‑V‑W) and front/rear mounting/shaft output options.

Full Specifications

• Product Title: AIM-LBe 400Vdc – Single axial flux in-runner motor
• Motor type: AIM-LBe/400Vdc
• Version: A00
• Power: 170 kW
• Torque: 390 Nm
• Mass: 12,40 kg
• Dimensions: Φ270×73 mm
• Voltage: 400Vdc
• Motor limiting speed: 5,000 [ RPM ]
• Motor connection type: U-V-W
• Kv: 13.81 [ RPM/Vdc ]
• Kt: 0.69 [ Nm/Arms ]
• Induced voltage: 0.05121 [Vrms/RPM]
• Internal phase resistance [20°C]: 16.53 [mΩ]
• Induction between two phases: 173.33 [μH]
• Magnetic flux: 0.03993 [Vs]
• Max. recommended input voltage: 650 [ Vdc ]
• Max. recommended peak current: 578 [ Arms ]
• Rotor inertia: 0.02660 [kg*m²]
• Temperature sensor: KTY 81-210
• *Regeneration speed: 5000 [ RPM]
• SPECIFICATION VALUE UNITS [SI]
• PHYSICAL
• MOUNTING DIAMETER 260 [mm]
• LENGTH 80 [mm]
• WEIGHT 12.40 [kg]
• PERFORMANCE
• SPEED RANGE 0 - 5 000 [RPM]
• PEAK POWER 170 [kW]
• CONTINUOUS POWER 120 [kW]
• PEAK TORQUE 390 [Nm]
• PEAK EFFICIENCY 98.2 [%]
• MECHANICAL
• AMBIENT OPERATING TEMP. -40 to 60 [°C]
• MAX ALTITUDE 14 000 [m]
• INGRESS PROTECTION IP67
• MOUNTING Front/Rear Face
• SHAFT INTERFACE Interference fit bolt-on
• SHAFT OUTPUT OPTIONS Front/Rear
• COOLING
• COOLING MEDIUM water-glycol mixture 50/50
• COOLANT TEMPERATURE 0 to 50 [°C]
• COOLANT FLOW AT 8 - 20 [LPM]
• PRESSURE DROP AT 16 LPM 0.35 [Bar(g)]
• ELECTRICAL
• INPUT VOLTAGE 120 - 800 [VDC ]
• BUILT IN SENSORS Stator temp. KTY81-210

Applications / Use Cases

• Automotive traction systems for light and heavy vehicles (LV148 compliant implementations).
• Aviation propulsion or auxiliary power units where mass and power density are critical.
• Energy recovery and regenerative braking systems requiring high regeneration speeds up to 5000 RPM.
• Industrial traction and mobile machinery where compact footprint, IP67 protection and wide altitude/temperature ranges are required.