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The Savöx SH-1290MG is a high-speed, high-precision digital coreless servo featuring a full metal gear train and aluminium case. Its double ball bearings ensure smooth motion and long-lasting durability. Ideal for helicopter tail rotors and fast control surfaces.
| Specifications | |
|---|---|
| Type | Digital Coreless |
| Control System | PWM modulation |
| Amplifier | Digital controller |
| Operating Voltage | 4.8 – 6.0 V |
| Neutral Position | 1520 μsec |
| Frequency | 250–333 Hz |
| Pulse Range | 800 – 2200 μsec |
| Operating Angle | 100° (1000 → 2000 μsec) |
| Max Angle | ≈154° (800 → 2200 μsec) |
| Rotation | Counterclockwise (1500 → 2000 μsec) |
| Torque | 4 kg·cm / 55.5 oz·in @4.8V • 5 kg·cm / 69.4 oz·in @6V |
| Speed | 0.06 s/60° @4.8V • 0.05 s/60° @6V |
| No-load Current | 200 mA @4.8V • 250 mA @6V |
| Stall Current | 2.4 A @4.8V • 3.0 A @6V |
| Idle Current | 5 mA |
| Gears | Metal – 25T spline |
| Bearings | 2BB (dual ball bearing) |
| Case | Aluminium |
| Dimensions | 40.3 × 20.2 × 37.2 mm |
| Weight | 56.4 g |
| Connector Wire | #22 AWG – 300 ± 5 mm |
Fast, durable, and precise – engineered for tail rotor performance and competition use.
Data sheet
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