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HA20-4515 Brushless Standard Servo 50Kgf.cm 0.13sec/60° Dual Ball Bearing for Large Scale RC Planes, Competition RC Planes
BR0023.0255
$99.99
KST HA20-4515 Brushless Servo
The KST HA20-4515 is a high-performance brushless servo built for large-scale RC planes, competition aircraft, and industrial UAVs. Delivering 50Kgf.cm torque and 0.13s/60° response, it provides precise and reliable control for heavy-duty applications. Its brushless motor, hardened steel gears, and lightweight aluminum alloy housing ensure durability, while the anti-pullout locking plug provides a secure connection in high-vibration environments.

Features
- DC Brushless Motor
- High Torque Output & Fast Response
- Dual Ball Bearings
- Hardened Steel Gear & CNC Aluminium Case
- A2509HFA-3P Locking Plug Interface
- Programmable
- Ideal for Large Scale RC Planes, Competition RC Planes & Industrial UAVs
Specification
| Parameter | Value |
| Item | HA20-4515 Servo |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V–8.4V |
| Torque | 36Kgf.cm@6.0V / 45Kgf.cm@7.4V / 50Kgf.cm@8.4V |
| No-load Speed | 0.19sec/60°@6.0V / 0.15sec/60°@7.4V / 0.13sec/60°@8.4V |
| Working Frequency | 1520μs/333Hz |
| Travel Angle | ±50° = 100° Total |
| Operating Temperature | -10℃ ~ +65℃ |
| Case Material | Aluminium Alloy |
| Motor Type | Brushless DC Motor |
| Gear Set Material | Hardened Steel |
| Position Sensor | Potentiometer |
| Ball Bearing | 2BB |
| Case Dimensions | 40.5mm × 20mm × 42mm ±0.2mm |
| Weight | 72g ±10% |




Package Includes
- 1 * HA20-4515 Servo
- 4 * Mounting Screw
- 4 * Eyelet
- 4 * Grommet
- 1 * CNC Servo Horn
- 1 * Servo Horn Screw