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KST MS589 HV Contactless Servo - 9.2Kg.cm 0.08s 38g 15mm

Product Code: KST-MS589
 (4 reviews)

Price: $67.27 save 10%

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Description

The new KST MS589 is a very powerful high voltage contactless servo suitable for helicopter cyclic and all fixed wing aplications. At 15 mm thick and 38 g weight it is reasonably small and light, considering its excellent 9.2 kg.cm of torque and 0.08 sec/60° speed.

The MS589 uses a magnetic positon sensor for maximum reliability. Also see the KST D589MG servo which is the same size but uses a potentiometer as a position sensor.

The KST MS589 a similar size and torque as the well regared MKS HV737 and is faster and better value.

Despite not having an -MG moniker the KST MS589 servo has a hardened steel metal gear train.


KST MS589 Specifications
Body dimensions 35.5 mm wide x 15.0 mm thick x 32.5 mm high 1.40" wide x 0.59" thick x 1.28" high
Max dimensions 42.0 mm wide x 15.0 mm thick x 37.0 mm high 1.65" wide x 0.59" thick x 1.46" high
Stall torque (6V) 6.5 kg.cm 90 oz.in
Stall torque (7.4V) 8.0 kg.cm 111 oz.in
Stall torque (8.4V) 9.2 kg.cm 128 oz.in
Weight 38.0 g 1.34 oz
Lead length 21 cm 8.3 in
Operating speed (6V) 0.10 sec/60°
Operating speed (7.4V) 0.09 sec/60°
Operating speed (8.4V) 0.08 sec/60°
Operating voltage 6.0V to 8.4V
Bearings 2 ball bearing
Gear material Hardened steel
Case material Aluminium alloy
Motor type Coreless
Working frequency 333 Hz
Dead band/resolution 2 µs
Pulse width for ± 50º 1000 - 2000 µs
Pulse width for ± 100º 500 - 2500 µs
Digital Yes
Programmable No
Position feedback Contactless/magnetic
Operating temperature -20 to +65 ºC
Supplied accessories 4 plastic output arms, 2 arm retaining screws, 4 mouning screws, 4 rubber gromets

Reviews 4  


 Review by:

KST ms589

Best servos available for extreme flight 60” airplanes! Super smooth and fast! Amazing torque and holding power! Perfect centering!


 Review by:

Best 15mm servo

IMHO the best and most reliable 15mm servo there is, and and at a sensible price , not to mention hyperflights superb service


 Review by:

KST ms589 HV contactless servo

For some time now I’ve been using the smaller ms320 servos because of their extreme reliability, accuracy and speed, they’re quiet too.
The MS589 has proved the perfect answer on large moulded glider elevators and now on the elevator of a fifth scale 55cc petrol powered scale Spitfire.


 Review by:

A revelation

Wow, these servos are nothing short of revelatory, due I expect to the accuracy of the hall sensor, these servos don't whine like normal digi's. Amazingly quick and fantastically strong on 2S. Bought for a heavy weight slope glider, they're actually for collective on a biggish heli I believe. I don't usually spend this sort of money on servos, but when they're this good, it may well be habit forming.

They use Futaba horns (24t?) so somewhat disappointed the alloy horns I paid extra for really don't fit and I'm expected to return them at my cost?!

In short, I think I'll be buying KST over Hitec in the future.


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