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KST X08 Wing Servo (1.4-2.8KG)


The KST X08 Wing Servo (1.4-2.8KG) is a very light (8 g) low/medium/high voltage metal cased servo. It is especially good for ailerons on discus launched gliders, electric racers, and all models with thin flying surfaces. Despite being only 8 mm thick the powerful coreless DC motor and gearing provide good torque and high speed. The X08 can be operated from a voltage as low as 3.8V (1S LiPo) or as high as 8.4V (2S LiPo). KST servos have excellent gear train machining tolerances, and this servo is completely slop free, and equal to products costing twice as much. Despite not having an -MG moniker this servo has metal gears, and is very tough.

The KST X08's high torque, good speed, and 8mm thinness make it suitable for many high performance glider, pylon racers and EDF applications. With up to 2.8kg.cm torque the KST X08 is appropriate for F3K, F5D, F5J, many types of high performance models.

The V3 version has improved electronics and a better supported servo cable. The servo output arms are all different, with one designed for DLGs with a reduced vertical height.

The extreme reliability and performance of these servos also makes them very suitable for use in film and motion picture industry special effect departments. They are also used in robotic, drone, UAV, UAS, academic research, military, and other highly demanding applications.

KST X08 Specifications
Body dimensions23.5 mm wide x 8.0 mm thick x 16.8 mm high0.93" wide x 0.31" thick x 0.66" high
Max dimensions29.5 mm wide x 8.0 mm thick x 25.0 mm high1.16" wide x 0.31" thick x 0.98" high
Stall torque (3.8V)1.40 kg.cm19 oz.in
Stall torque (6V)2.20 kg.cm31 oz.in
Stall torque (8.4V)2.80 kg.cm39 oz.in
Weight8.4 g0.30 oz
Lead length10 cm4.0 in
Operating speed (3.8V)0.18 sec/60°
Operating speed (6V)0.15 sec/60°
Operating speed (8.4V)0.09 sec/60°
Operating voltage3.8V to 8.4V
Bearings2 ball bearings
Gear materialAluminium alloy / copper-bronze alloy
Case materialAluminium alloy
Motor typeCoreless DC motor
Working frequency333 Hz
Driver typeFET
Supplied accessories3 plastic output arms, 1 arm retaining screw, 4 mounting screws

Torque(1): 1.4KG.CM
Speed(1): 0.18S
Torque(2): 2.2KG.CM
Speed(2): 0.15S
Weight: 8.0g
Price: SGD$50.09

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