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BLS815 V8.0 Digital Metal Gear Brushless Servo 20Kgf.cm 0.07sec/60degree for 550-700-class Helicopters
BR0023.0044-V8
$79.99
KST BLS815 Brushless Servo
The KST BLS815 is a powerful and versatile brushless servo built for reliable performance across a wide range of RC applications. Its robust aluminum housing and precision steel geartrain provide excellent durability and stability under demanding operating conditions.
The brushless motor delivers fast positioning and responsive control, while the precision geartrain helps ensure accurate and consistent return-to-center performance. This combination makes the BLS815 a dependable choice for applications where speed, precision, and durability are equally important.
With its brushless power, rigid aluminum construction, and precision steel gearing, the BLS815 offers a strong balance of performance and reliability for demanding RC setups.

Features
- Ultra High Torque & Excellent Speed
- Hardened Steel Gear
- CNC Aluminium Case
- High Quality Brushless Motor
- Dual Ball Bearings
- Ideal for 550-700 Class Helicopter Cyclic
Specification
| Parameter | Value |
| Item | BLS815 V8.0 Brushless Servo |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Torque | 14Kgf.cm@6.0V / 17Kgf.cm@7.4V / 20Kgf.cm@8.4V |
| Speed | 0.09sec/60°@6.0V / 0.08sec/60°@7.4V / 0.07sec/60°@8.4V |
| Working Frequency | 1520μs/333Hz |
| Default Travel Angle | ±50° = 100° when 1000μs-2000μs |
| Temperature Range | -10℃ ~ +65℃ |
| Soft Start | Programmable |
| Programmable | Yes |
| 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 × 38mm ±0.2mm |
| Weight | 70g ±10% |
Package Including
- 1 * BLS815 V8.0 Brushless Standard Servo
- 5 * Plastic Servo Horn
- 1 * Servo Horn Screw
- 4 * Grommet
- 4 * Eyelet
- 4 * Mounting Screw
