Motor, 4-Pole SENSORED BRUSHLESS 1406-3800KV 1406-3800KV 4-Pole SENSORED BRUSHLESS Motor

Drivers in all applications demand clean starts when coming off the line. Crawlers require high-precision low-speed control and torque for climbing, racers need precision and predictability, and dragsters don't have a millisecond to spare. To meet these performance demands and more, we have integrated rotor position sensor technology with our improved high-power and high-efficiency motor design. Through the use of our sensors, the position of the rotor is always known by the ESC, eliminating the possibility of encountering cogging or inconsistency during startup. Users will experience precise throttle control, buttery-smooth starts, and the raw power and longer run times that our highly efficient motors produce.

Without a robust and reliable design, efficiency will only go so far. RC enthusiasts love pushing their equipment to the edge, and the Castle engineers have spared no expense when developing a design that can withstand the harsh conditions that the RC community will throw at it. Oversized NMB bearings and a vibration-dampening system ensure the longest bearing life possible. High-strength, high-temperature grade neodymium sintered magnets combined with a high-strength Kevlar wrap ensure the integrity of the rotor is not compromised during harsh running conditions. Our proprietary winding techniques allow us to produce a stator assembly with the lowest possible resistance, resulting in a cooler-running motor with a longer lifetime.

The construction of our motor required careful component selection, with each component verified through internal testing to ensure the highest efficiency possible. The result is a motor with unmatched quality, performance, and reliability. We wouldn't put our name on anything less.

Our new sensored design allows for smoother starts and better low-end throttle control while retaining the high torque and power of our previous sensorless motors. The motor dimensions are 36mm diameter and 49.5mm length for the can, and 3.17mm diameter and 15mm length for the shaft. It is recommended for use with up to 4S LiPo (16.8V) batteries.

The motor connectors are 4mm male Castle Bullet Connectors attached to replaceable 13-gauge wire, and it includes a 210mm length sensor wire. This motor is ideal for 1:10 scale low-speed rock crawlers/trail runners weighing less than 8lbs, and can also be used in more aggressive setups in lighter 1:10 scale touring cars, stadium trucks, or buggies weighing up to 5lbs.

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