IFANCY-TECH®4x MG996R 55g Metal Gear Torque Digital Servo for Futaba JR RC Helicopter Car Boat Robot

I rarely write amazon reviews, hope my input helps:) These Servo operates great if you do calibration for each of them, and embed the calibration data in your control code. Here are the test results for the four servo I purchased here: Servo 1: valid PWM range （scale from 0 to 255 for arduino user）: 75~ 250 angle range: 130 degree Servo 2: valid PWM range : 60~ 225 angle range: 120 degree Servo 3: valid PWM range ）: 75~ 240 angle range: 130 degree Servo 4: valid PWM range : 70~ 240 angle range: 130 degreeAfter running test on each of the 4 MG996R I got from here, each of them response differently to the PWM signal.If PWM signal outside the range is supplied to the servo, they shake to random position or just stall and making noise.The repeatability of each servo is quite good. response is fast. (of course if you need ready need high precision, go for the expensive one, simply because the potentiometer in the servo is better.I might try and see if I can replace the potentiometer in MG996R with some other potentiometer of higher quality.)I have use other expensive brands servo before, and they are indeed easy to use and of better construction.The reason why servo from top tire brands is expensive is that: 1: electrical components quality in the servo assembly has better consistence 2: finished products may also run through a better quality control test line.As a result, those expensive servo operates with higher consistency without much user end effort. Final thoughts: (0: the potentiometer aforementioned works as a absolute position sensor for the servo control board.) 1: these servo is very good for small projects, especially for those beginners. Study how the servo works, and what makes a servo expensive or cheap, is way more important than just duplicate a project of others. 2: With $50, I choose to buy 8 MG996R instead of one top tire servo. Simply because, if you get lucky, you will get one MG996R with very good quality. and you got many replacement parts. LoLBest

Great for the money. I looked up another product with exact same numbers but made by Towerpro. They were unavailable from a big hobby shop and I wanted them quickly so ordered these. They look like the same exact product with a different name except I got 4 for the price of 2. Good deal and so far pretty solid product. I am new to the RC car side but everything breaks and when you only spend to enjoy sometimes a value is appreciated. So far one of the best values I have found in a replacement part. Replaced a Spektrum servo that would no long turn to one side plus it was plastic. Replaced with metal gear servo at a savings of about $22 per car. No brainer thus far. Not sure about durability but we will see. I will update in a couple of months to see if they are still working. Each comes with hardware and individually packaged in separate plastic bags. Pretty much on par for China made off brand stuff but a great value nonetheless.

These servos have some good torque, but they also suffer from the jitters when trying to hold a position. Not particularly quick. The angular resolution seems to be a bit wonky. If you just need a workhorse servo to lift, pull and torque stuff without worrying too much about speed or precision, they are actually pretty decent. I work in a biophysics lab and me and my lab mates have found several neat uses for them. I don't know anything about model airplane or RC stuff, but I suspect you may want to try a different servo for those applications.

Great, high torque servos. Each one seems to vibrate slightly when idle, as if the circuit board isn't quite sure of itself, but this doesn't seem to give any problems at all. They are still fast and powerful and hold their position well. These were very cheap after all, and I am very satisfied with their performance, especially for the price. I will likely buy these again in the future, should the need arise.

I had thought this to be the best valued cheap servo on amazon it still isI bought them tested and one of them "broke" the gears in them are pressed together and not a single piece and it slipped out I had to open it and re assemble it in place. it works not, with not even half the torque. If you know a product to keep the presses in gears from slipping then these should be great for you, as long as amazon

Perfect servos for my 55cc gas airplanes. I also used these in my flying wing that goes over 160 mph and they are on point.

I JUST FINISHED TESTING 24 OF THESE SERVOS WITH A HIGH END SERVO DRIVER AND FIRST I WANT TO SAY THAT THESE SERVOS ARE SURPRISINGLY QUIET FOR DIGITAL METAL GEAR HIGH HIGH TORQUE SERVOS COSTING UP TO THREE TIMES WHAT THESE COST... ALL OF THEM TESTED AS THEY SHOULD HAVE WITH ONLY 1 THAT TOOK 2 MILLISECONDS LONGER TO CENTER THAN ALL THE REST. THIS IS NOT UNCOMMON FOR DIGITAL SERVOS AS ANYONE THAT HAS EXPERIENCE WITH DIGITAL SERVOS KNOWS... THEY WERE DELIVERED IN JUST THREE DAYS AND IF THIS SELLER HAD MORE OF THEM I WOULD REORDER THEM IN A HEART BEAT RIGHT NOW...I PLAN ON ORDERING MORE AS SOON AS THEY ARE BACK IN STOCK.... WOULD RECOMMEND THESE SERVOS TO ANYONE...........

Two of the 4 servos were bad right out of the box. The motors would make a noise but the arm wouldn't move at all. I urgently needed them for a project that weekend so I took them apart and found that the motor wasn't pushed in far enough to engage with the other gears. Pushing them back in seemed to fix it, but after using them for a few minutes they started to skip and grind and then stopped moving again. I should have returned them when I had the chance.