Portescap 16ECS52 Ultra EC Slotless Brushless DC Motor 16ECS52 8B 49.01

The 16ECS52 Ultra EC slotless brushless DC motor is a 16 mm diameter, 2-pole motor designed for high-speed applications up to 73,000 rpm. It features a 3-phase, sensored design with an 8-pin flat cable interface and operates at a nominal voltage of 24 V. The 49 variant provides a no-load speed of 27,800 rpm, a maximum continuous torque of 16.1 mNm (2.28 oz-in), and a maximum continuous mechanical power of 66 W at 25°C. Internal phase-to-phase resistance is 0.98 ohms, with a back EMF constant of 0.84 V/1000 rpm and a torque constant of 7.99 mNm/A. The motor has a thermal resistance of 3 °C/W, a mechanical time constant of 1.5 ms, and weighs 62 g. It is rated for ambient temperatures from -30°C to +100°C and winding temperatures up to 125°C. Rotor inertia is 1 g·cm². Ball bearings support the shaft with a 5.3 N preload.