BMS-621MG High Speed ​​Servo (Metal Gear) 6.4kg / .13sec / 47g

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Customer Rated

Mar 19, 2016

I have installed this servo in my 2,6m 3d model as a gas sevro. After 20min of good work on the ground (while I was trimming a model) IT BURND!!! well, good that happend not in the air , not recommended

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Customer Rated

Feb 25, 2015

I've been using these for years in my yachts for rudder control and had only one fail.
I sail in salt water and have had boats flooded, but I pack top gearbox with thick lanolin grease, add 'O' ring onto shaft, coat with liquid electrical tape (rubber compound) and they are bullet-proof. I use them in all my yachts. Great power, good centreing, tough and low power consumption.

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Customer Rated

Feb 16, 2015

Bought 5 for a seagull models mxs-r, all 5 initially looked very good, however, last night the throttle servo melted down, literally, lots of smoke and melted plastic. Fortunately the airframe was on the bench and not in the air. I have read other reports of BB servos melting down, I'll be pulling the rest and bench testing them for an extended period of time.

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Certified Buyer Rated

Sep 16, 2014

This bluebird BMS-621MG servo is very nice for the price. Quality seems great and speed/torque are quite good and more than adequate for on-road use like I use it. I can highly recommend this to everone.

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Customer Rated

Apr 13, 2014

Ive brought 2 of these servos now and they both work perfectly! nice and fast and center every time, im using them on 1/10 drift cars with a 6v bec, i will be using the hi torque version in my scx10 trail truck when it shows up they are the best bang for buck around!

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Certified Buyer Rated

Nov 14, 2013

it came very well packaged and with all the screws and arms. it gives 6.4Kg @ 4.8V and can withstand 6V. Great for RC car and plane

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Customer Rated

Nov 11, 2013

For the price this servo has a lot of torque and is very fast. My only complaint is it does not center well. Very good for a basher 2wd off road car steering or off road nitro throttle on a budget.

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Customer Rated

Mar 02, 2013

I purchased two that run in my 1/8 scale buggy. Good torque, centers great, and noticeable quick speed. I ordered two more to replace my steering servos in my 1/10 scale nitro touring car and 1/10 electric touring car.

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Customer Rated

Feb 25, 2013

That it is what i call a very good servo. it is very fast, Reliable and cheap! I used it in my SC10 truck and now it is my rc drift car =)
I have no problema with this servo. I will buy more....

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Customer Rated

Jan 14, 2013

Purchased 9 of these servos and 3 burned out during installation. I didn't expect to find that 30 percent of these servos were faulty