yusvwkj 4 Pack MG90S Micro Servo Motor Coreless 9G RC Metal Gear Servo Motor for Futaba JR RC Helicopter Car Boat Robot Arm Plane Arduino

These seem to be a good quality servo. Just got them installed in my wing and for a 9g servo they seem strong for more than just throwing the elevons. Usual selection of fittings.

All 5 worked fine for me :)

The shipping was quick and product was as described. Came with a variety of servo horns for different applications. Will order again in the future.

Not hood

The media could not be loaded. These servos are just the bog-standard SG90 model that you can get from a lot of different brands, they are a drop-in replacement for many RC vehicles. They are also very useful for prototyping and tinkering with projects based on Arduino and Raspberry Pi, speaking of which, I just used a simple python script and ran it from my PI to test all the servos, they all worked flawlessly. I do recommend giving them all a quick test as with these servos faulty ones right out of the package isn’t uncommon due to lack of QC and QA.They are fairly loud as you can hear in the video I recorded showing one I was testing with my PI script. They hook right up to 5v from the PI without issue, all you have to do is remove the 3-pin connector and swap it out for 1pin connectors, you could also make an adapter wire if you don't want to potentially destroy the included 3-pin connector.A common trend with these yusvwkj servos is that they tend to charge more than other companies selling the exact same servos. This 5 pack is £13.99 or £2.79/ea, which doesn’t make it the greatest value compared to other sellers offering 10 for £20 or £2/ea.Outside the price being a little high the product is flawless, they are strong,well-built and come with servo-arms for most uses. They are also certainly inexpensive compared to the leading-brand 9G servos, which can cost anything from £8 all the way up to £40 for the futaba 9G servos. If you are looking for plastic geared and inexpensive 9 gram servos, these are certainly an option.

This set of four SG90 analog servos are extremely well made, with no slippage or give in the gear box, ensuring that you get high precision from the unit. These are micro servos and are therefore very lightweight, which makes them good for RC aircraft or helicopters. Each servo moves at a fairly typical speed for most of these sort of units, moving around 60 degrees every 0.11 seconds, with full movement up to a 180 degree angle. Therefore, in about a third of a second the hole arm has moved its entire capacity from one side to the other. This was perfect for me, although others wanting a slower rotation may need to additionally gear this up.Unlike some other servos on the market, the head drive shaft protruding through the top of the plastic unit is not a cog but rather a smooth cylinder shape to which you need to screw into this one of the three plastic arms (this is important to note if you were hoping to cog this up from the output).Each servo comes with a small pack of 3x plastic arms for attaching via screw to the head cog protruding from the top of the plastic case. There is a helicopter style attachment (with two short and two long arms), a propeller attachment (two long arms only) and finally a single arm attachment (one long arm only). Each one screws tightly and firmly onto the head drive shaft.

I have found that out of the ten servos I purchased, three have failed within a few hours.Will be trying a different supplier in the future

These are a good selection of micro servos, perfect for fitting in a flying RC vehicle, or even in a boat if you want to limit the weight of electrical equipment.These work well and seem to be fairly strong for such small devices.These are excellent value for money. I'm currently planning on building a flying wing, however already have the metal version of these. I may use these instead though in order to limit the weight even more.Overall, I certainly can't complain. These work perfectly with my ESC. I can definitely recommend them.