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  Item found in the following categories;
> 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: 
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stock
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Price $5.75

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 Customer rated
569
crowns
  
 
Total of 27 discussions.
whidzee  11 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
Claudio  2 points - 10/10/2013
 
I have ordered and received two pieces * one do not work ! like if i don't put in the test servo or to the radio receiver ! One continue ti weep ! AS SOON THE SECOND SERVO RECEIVE THE 12 VOLTS, IT CONTINUE TO WEEP
 Ryans 14 points
Im sorry Did you say 12 VOLTS!!!!! This servo is only mean to be run at 6v You will destroy any servo with that high voltage unless they are rated to higher Hope this helps you (and the servo)
GIOXDU  7 points - 8/30/2013
 
El corona 939 es tremendamente bueno en su funcionamiento y confiabilidad, son de los mejores servos que he usado, sin embargo la parte por donde se atornillan se rompe muy fá*cil, ojala el fabricante corrigiera esa debilidad, así* el servo seria imbatible!
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
160 likes
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Super Servo, langlebig, stark und ausreichend schnell, mein Standard fuer kleinere Modelle!


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wingarea
11 likes
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very very very good~!


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