8520 Coreless Brushed Motor Set 53000rpm 8.5x20mm + 75mm CW CCW Propeller

Firstly, for $10 at the time of writing this, it's a great deal. Especially when considering the props that come at no additional cost. So that's a plus.I ordered two different brands of 8.5x20mm coreless motors. The first kit that arrived, had no jst connectors, but extra length of wire compared to hobbypower. HP did come with connectors though and a short length of wire.Where the HP motors seem to be best is the balance felt while operating the motors and matched power output. The other brands motors vibrated pretty hard and i decided not to use those at all because of it. i tested them all using AA battery while holding the motors. That's when i felt the hobby power motors were better due to lower noise, better balance and fair price.Only negative was one prop had too big a hole to fit the diameter of the motor shaft. Had to use a dab of crazy glue, no big deal though. Also, could've sworn two motors weren't operating in the correct direction, but i switched the leads and was good afterwards. I was confused at first with too many motors in front of me and scratching my head trying to figure out why i still had all 4 motors going CW.

Decepcionado, subo las pruebas de los ensayos y medidas que apoyan mi testimonio. Por sus dimensiones esperaba un empuje de por lo menos 30/40 gramos por motor. Los 4 juntos a 5VDC con una F.A. De 20A no tienen un torque ni de 25 gramos.A todo esto los motores consumen 1,26A o 6, 3w/h por lo que necesitas una batería de un peso superior a lo que pueden elevar los motores sin contar con el equipo RC donde vallan instalados, muy decepcionado por no poder encontrar una batería adecuada, si tiene más de 3,7VDC muchas Rpm rompen el aire y no fluye, menor tensión menos celdas menos amperios, en definitiva lo he probado todo y e echo cálculos y no encuentro la solución, agradecería que me digan cual es la batería adecuada, los motores irán en un avión de 80 gramos. Tengo motores de 1/3 que empujan más que estos y duran 10'. Uno de los que me vendisteis a 3,7VDC 1.000mhA dura 10 segundos.Ya tengo el avión con sus servos su receptor sus motores la emisora y tengo el proyecto parado por este problema que no se como solucionar, es el huevo y la gallina.Más potencia más peso, más peso más potencia, están descompensado....

I thought they would be slightly larger then what they were. They work fine and my husband had his drone in the air within minutes.

These motors are perfect for running on 1S (3.7V) LiPo's. They move a crazy amount of air with the included props! However, I would caution against running these at their maximum 5V for any extended period of time. They start to get hot very quickly. Consider using a smaller-pitch prop if you plan on running them at 5V.These motors have a terrific amount of thrust for their size--you could build a nice quad with a set of these. Just be sure to give them good airflow, as I doubt the tiny ventilation holes adequately cool it under high loads.These motors have very powerful magnets, which you can feel by how much force it takes to separate them in the packaging. I expect them to have great speed response, especially given that they are coreless motors.

Son made airplane models with it and they worked great !