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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-DS589MG |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
127.70 oz-in
9.20 kg-cm
0.9 N-m
7.4V
111.04 oz-in
8.00 kg-cm
0.8 N-m
6.0V
90.22 oz-in
6.50 kg-cm
0.6 N-m
Above Average
|
| Speed |
8.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.0V
0.10 sec/60°
600.0 deg/s
100.0 RPM
Above Average
|
| Physical | |
| Weight | 1.41 oz40.0 gBottom 10% |
| Dimensions |
L 1.398 in W 0.591 in H 1.28 in L 35.5 mm W 15.0 mm H 32.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Mechanical Limit | 120° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 290 mm11.42 in |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Above Average Stronger than 74% of 262 Digital Mini servos at 6.0V |
| Speed | Above Average Faster than 68% of 263 Digital Mini servos at 6.0V |
| Weight | Bottom 10% Lighter than 10% of 466 Digital Mini servos |
Performance Analysis
| Shaft Power | 1.67–2.95 W |
| Power Density | 2.795 W/in³ More power-dense than 72% of 440 Digital Mini servos |
| Torque Density | 2.2555 oz-in/g Stronger than 44% of 258 Digital Mini servos |
| Torque-to-Volume Ratio | 85.43 oz-in/in³ Denser torque than 56% of 262 Digital Mini servos |
| Speed-to-Weight | 0.25000 (1/sec·g) Faster than 26% of 259 Digital Mini servos |
| Speed-Torque Trade-off | 9.02 Better balanced than 61% of 261 Digital Mini servos |
| Torque Gain per Volt | 17.31%/V More voltage-responsive (torque) than 60% of 232 Digital Mini servos |
| Speed Gain per Volt | 10.42%/V More voltage-responsive (speed) than 15% of 235 Digital Mini servos |
| Voltage Range Width | 2.4 V Wider voltage range than 60% of 351 Digital Mini servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0017 Finer dead band than 54% of 77 Digital Mini servos |
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