goolrc s2440 4000kv sensorless brushless motor for 1/18 1/16 rc car goolrc the goolrc s2440 4000kv sensorless brushless motor is designed to provide both quality and performance at an affordable price. it is built from high quality aluminum alloy which is produced from the latest cnc milling machines, and is designed with high power and rotation speed to provide longer run time.<br /><br /> features:<br /> high-torque and high-efficiency.<br /> removable/replaceable rotor.<br /> high rpm abec5 oversized bearings.<br /> high purity copper windings maximizes efficiency.<br /> precision engineered for maximum energy conversion.<br /> precision balanced rotor, smoothness for best reliability and maximum rpm.<br /> low heat production, long lifetime, strong overload protection.<br /> universal fit, fits all 1/16, 1/18 brushless cars-multi-mounting system for m2.5 screws.<br /><br /> specifications:<br /> kv(rpm/volt): 4000kv<br /> rpm: 50000<br /> max current: 32a<br /> max voltage: <12.6v<br /> resistance: 0.0117<br /> can size: 2440<br /> sensored: no<br /> can diameter: 24mm<br /> can length: 40mm<br /> shaft diameter: 2.3mm<br /> shaft length: 12mm<br /> connector: 3.5mm golden banana plug<br /> item weight: 66g<br /><br /> package information:<br /> package size: 10.3 * 8.1 * 6.2cm / 4.1 * 3.2 * 2.4in<br /> package weight: 101g / 3.54oz<br /> gift box package<br /><br /> package list:<br /> 1 * goolrc s2440 4000kv sensorless brushless motor