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> Servos & Parts > All Servos
> Servos & Parts > Mini Servo 11-20g

  RATED:

Corona 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec

Corona 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec
Corona 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec

Corona 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec

Model: HKS939MG
Size: 22.5X11.5X24.6mm(0.88"x0.45"x0.96")
Weight: 12.5g
Operating Voltage: 4.8V / 6.0V
Operating Current: 200mA / 240mA
Operateing speed : 0.14sec.60o / 0.13sec.60o
Stall torque : 2.5kg.cm / 2.7kg.cm
Dead band : ≤5uSec
Operateing speed: 40º/one side pulse traveling 400us
Potentiometer: 2 slider/Direct Drive
Ball bearing: MR85
Gear: Metal
Connector wire length: 215mm
Operating Temperature Range: -20 °C to +60°C



PRODUCT ID: CS939MG

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Weight (g) 12.5
Torque (kg) 2.5
Speed(Sec/60deg) 0.14
A(mm) 31
B(mm) 23
C(mm) 29
D(mm) 12
E(mm) 32
F(mm) 21
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Customer Data

Weight: 33g
Quantity: 
International Warehouse
stock
10+
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Price $5.75

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 Customer rated
569
crowns
  
 
Total of 29 discussions.
Orkhan  3 points - 10/19/2014
 
Very cheap and strong servos! Exactly what i needed for my custom made helicopter retracts =)
AllanBulloch  11 points - 9/22/2014
 
I have a few of these all working well, until I landed a little too hard. Stripped the nylon gear inside a metal gear servo? This doesn't make sense. Can anyone explain the logic? Like selling a beef burger with chicken on it!
whidzee  12 points - 4/17/2014
 
I installed this on my tricopter and I can honestly say it is ****. It does not return to centre at all. and i cannot trim it out either, moving the stick fully one way and then releasing, leads to the servo returning to about 5-10 degrees short of centre. this happens for both directions. absolutely horrible.
glassair  10 points - 10/27/2013
 
Within several momths, price isincreased by 1doller. Well... no more merit in HK than other shop now.
Claudio  2 points - 10/15/2013
 
Sorry ! I have not written 12 Volts ! You have changed my message ! Claudio
Customer Reviews
Overall Rating
mtuccio
46 likes
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I recently used 3 of these for cyclic on an HK450V2 kit. The performance was impressive for the cost of this servo. The torque is adaquate, the speed is decent, and they center pretty good for a MG servo. The spline on these can accepts Align DS4 servo arms so that is an added bonus. I bought 8 of these in my order and they all worked without problems. I will be buying more of these in the near future. Very good product HK!


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Overall Rating
mrfourtysevenman
113 likes
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these servos are very fast. they are so responsive, i jerked the stick around very fast and the momentum of the metal gears oscilating knocked the servo over. amazing servo. causes my hxt900's to jitter like crazy when near them.


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Overall Rating
akin agrag
197 likes
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y brseye benzyor bakalm


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Overall Rating
Mastaofdisasta
163 likes
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Super Servo, langlebig, stark und ausreichend schnell, mein Standard fuer kleinere Modelle!


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Overall Rating
wingarea
11 likes
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very very very good~!


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