Servo selection: torque, speed, gears and voltage
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters is a KST Servos product selected for Helicopter Servos. This page is written for practical buying decisions, with the key fit, size, voltage and performance details organized in one place.
Use it to compare torque, speed, voltage range, construction, dimensions, weight, variants and accessory compatibility before choosing the right component for an RC aircraft, helicopter, car, glider, UAV or workshop installation.
Key Advantages
- Support High Voltage 8.4V
- Extreme Torque and Excellent Speed
- Programmable
- Dual Ball Bearings
- Brushless DC Motor
- Hardened Steel Gears
Core Specifications
- Voltage Range: DC6.0V-8.4V
- Rated Voltage: DC7.4V
- Motor Type: Brushless DC Motor
- Gear Set Material: Hardened Steel
- Ball Bearing: 2BB
- Case Dimensions: 35.5mm*15mm*35.5mm±0.2mm
- Weight: 45g±10%
- Item: X15-855X Tail Servo
- Torque: 10Kgf.cm@6.0V, 13Kgf.cm@7.4V, 15Kgf.cm@8.4V
- Speed: 0.07sec/60°@6.0V, 0.06sec/60°@7.4V, 0.05sec/60°@8.4V
- Working Frequency: 760μs/560Hz
- Temperature Range: -10℃……+65℃
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| Technical Specifications | |
| Manufacturer | KST Servos |
| Brand | KST |
| Product Code | BR0023.0210 |
| All Variant SKUs | BR0023.0210 |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Working Frequency | 760μs/560Hz |
| Temperature Range | -10℃……+65℃ |
| Case Material | Aluminum Alloy |
| Motor Type | Brushless DC Motor |
| Gear Set Material | Hardened Steel |
| Position Sensor | Potentiometer |
| Ball Bearing | 2BB |
| Case Dimensions | 35.5mm*15mm*35.5mm±0.2mm |
| Weight | 45g±10% |
| KST Collections | Helicopter Servos, Industrial, Mini Servos, X Series |
| Series | X Series |
| Size Class | Mini Servos |
| Application | Helicopter Servos |
| Features | Support High Voltage 8.4V; Extreme Torque and Excellent Speed; Programmable; Dual Ball Bearings; Brushless DC Motor; Hardened Steel Gears; CNC Aluminium Case |
| Package Includes | 1 * X15-855X Tail Servo; 1 * CNC Servo Horn; 1 * Plastic Servo Horn; 1 * Servo Horn Screw; 4 * Mounting Screw |
| Item | X15-855X Tail Servo |
| Torque | 10Kgf.cm@6.0V, 13Kgf.cm@7.4V, 15Kgf.cm@8.4V |
| Speed | 0.07sec/60°@6.0V, 0.06sec/60°@7.4V, 0.05sec/60°@8.4V |
| Product Type | KST |
Tags: KST Servos, BR0023.0210, Helicopter Servos, Industrial & UAV Servos, Mini Servos, X Series, Gears, RC servo