20KG Digital Servo High Torque Full Metal Gear Waterproof for RC Model DIY, DS3218MG,Control Angle 270°

So I had the 20 kv servo for close to a year and never used it,but my arrma fireteam 6s stopped steering 100% and I was not wanting to wait until the replacement came so I figured this was not going to be powerful enough or hold up, so it installed easily, and looks like it is a factory piece, it's not as fast as I would like, but truthfully it's as fast as the spectrum one and doesn't cost even half of the price, I've ran 2 battery packs and some light bashing and it's still working properly, and the durability of it seems to be well worth the price and even better than some of the other ones that are twice as high, really I don't have any complaints other than it does sound a little bit more noisy than I like but it's probably because it is having to work harder than intended, I think if it was a 35 or 45 it would have not been as loud because it would have not been under as much strain, but for now this 20kg is stronger than expected.

It lives up to its specs and performs great in my 1/10 scale RC car.

I ordered this for my HPI Baja 5B because the steering/throttle servo went bad, and I ran across this on Amazon.It was priced really well so I thought I'd give it a try, and needless to say, I'm pretty impressed. I was able to install it without any modifications, and it was a perfect fit. Setup was easy, and it has a lot of torque for its size, and it is pretty quiet.It is well worth the money.

Great servo. It works and it's a great price.

i use them on my crawlers and offroad bashers. they hold up. they dont like being submerged but mot many do

I use this servo motor to turn a knob to turn on our old window AC unit. The knob was very rusty and required a lot of force to turn which my old 9G servo motor could not turn. This handled it without any issues.One thing to point out is that the servo.detach function doesn't seem to have any affect on it. Meaning that the motor will constantly try to hold it's position and if something is pulling the motor, it will try to correct it while making an audible high pitch noise constantly. I also wish there were other attachment options. Other than that, this is a great motor!

Very durable for my 4wd RC10. I love the metal case and servo arm. I got the 270 degree model and I love the range of motion with this servo!! Best Value for the money!!!

This device uses standard servo signalling - pulses of 544 to 2400 micro-seconds for full-range motion. However, it only rotates 255° instead of the advertised 270. I verified the pulse width was correct using an oscilloscope, and even tried sending signals below 544 or above 2400, but it did not move any farther than 255°. That was not a big deal in my application, as I only needed it to rotate 180°.The second thing I noticed was that when the servo was powered and at rest (no load, just a gear attached to the servo) the servo would not remain motionless. A servo should move to the position you've given it and stay there until you change the signal and send it to a new position. For example, I could direct it to move 20° and it would move immediately to that position, but then it would occasionally "wiggle" - moving a tiny bit one way or the other and then a second later it would return to the set position. I admit this motion was small and might not be noticed in some applications. Even though this behavior should not be occurring I thought I could live with it for my project.My application is to rotate a small wooden table, similar to a "lazy susan", using a micro-controller to generate the PWM signals for the servo. I planned to turn off power to the servo once the table was rotated 180°, that way the little "wiggle" motions would not be a problem. The servo has enough power to easily move my table, in fact it would move it too fast and I had to slow it down by sending the position signals one at a time, essentially telling it to move about 1/6 of a degree at a time with a 5 or 10 milliseconds delay before telling it to move again. This was great for slowly rotating my table in a controlled motion, but then I learned about another problem with this servo.It seems that this servo will not apply full power for small direction changes. If you signal the servo to move to a new position that is 10 or 20 degrees away it will apply full power to get there. I measured currents above 2 amps with a 5-volt power source when turning my table. But as my table rotation is nearing the 180° mark I need to slow it down so it comes to a smooth stop. That is impossible with this servo, because when you signal it to move only one or two degrees it will not apply full power. I measured less than .5 amps when directing the servo to move in small increments, which would not generate enough torque to move my table. The result is that I can move the table 177° with no problem, but the servo doesn't apply enough power to move it the last 3 degrees. The only way to get it to move those last 3 degrees is to tell it to move 10°, which causes it to move too quickly and bang against the stops on the table.Bottom line - for precision applications or when you need control in small increments, this servo will not work.

Just perfect and Amazing price

Todo bien. Buena relación calidad-precio. Es como se describe. Envío correcto

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Excelente reemplazo del servo de la dirección para mi TRX4 de Traxxas. Su substitucion es absolutamente simple y sin problemas y da un manejo más preciso y confiable. Prácticamente no hace ruido y no zumba como otros motores eléctricos.

I got this servo to replace my stock TRAXXAS TRX4 servo that went on me and man this thing works great! Very solid and strong, servo noise is no more or less than the usual. Can’t speak on waterproofing. But this does the jobs and get your vehicle back in action at a very reasonable price!I’m happy with my purchase and definitely recommend this!