|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|
|Working frequency||333 Hz|
|Dead band/resolution||2 µs|
|Pulse width for ± 50º||1000 - 2000 µs|
|Pulse width for ± 100º||500 - 2500 µs|
|Position feedback||Hall effect (magnetic)|
|Operating temperature||-20 to +65 ºC|
|Supplied accessories||4 plastic output arms, 2 arm retaining screws, 4 mouning screws, 4 rubber gromets|
Review by: Ricky BobbyKST ms589
Best servos available for extreme flight 60” airplanes! Super smooth and fast! Amazing torque and holding power! Perfect centering!
Review by: AnonymousBest 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: AnonymousKST 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: ElliotA 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.