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DS525MG 8.4V HV Digital Metal Gear Servo 7.5Kgf.cm 0.04sec for 550-700 Class Helicopters
BR0023.0035
$64.99
KST DS525MG Ultra-Fast Tail Servo
The KST DS525MG is an ultra-fast digital tail servo designed for high-performance RC helicopters. With an exceptional 0.04 sec/60° speed, it delivers the rapid response and precise control required for demanding tail rotor applications.
The servo features a robust aluminum housing and a precision metal geartrain designed to minimize backlash, helping maintain accurate and consistent tail control. Its rigid construction also provides the durability needed for high-performance helicopter setups.
The DS525MG is especially well suited for 550–700 class helicopters, making it an excellent choice for pilots who need extreme speed, precise positioning, and reliable tail response.

Features
- Hardened Steel Gears
- Extreme Torque and Excellent Speed
- CNC Aluminium Case
- Two Ball Bearings
Specification
| Parameter | Value |
| Item | DS525MG Metal Gear Servo |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Torque | 5.5Kgf.cm@6.0V / 6.5Kgf.cm@7.4V / 7.5Kgf.cm@8.4V |
| Speed | 0.050sec/60°@6.0V / 0.045sec/60°@7.4V / 0.040sec/60°@8.4V |
| Working Frequency | 760μs/560Hz |
| Temperature Range | -10℃ ~ +65℃ |
| Case Material | Aluminum Alloy |
| Motor Type | Coreless DC Motor |
| Gear Set Material | Hardened Steel |
| Position Sensor | Potentiometer |
| Ball Bearing | 2BB |
| Case Dimensions | 40.5mm × 20mm × 38mm ±0.2mm |
| Weight | 70g ±10% |
Package Including
- 1 * DS525MG Metal Gear Servo Motor
- 1 * Pack of Accessories
