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 is an RC product from KST Servos. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters fits customers looking for KST Servos items in Helicopter Servos, Industrial & UAV Servos, Gears, with RC-MODEL support for choosing the right configuration.
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.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
A buying table for matching servo size, torque, speed, gear type and voltage to trainers, gliders, 3D aircraft, EDF jets and Giant Scale models.
Mechanical setup guide for servo arms, linkage angles, throw, control horns, neutral position and radio setup after geometry is correct.
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
| 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 | [email protected], [email protected], [email protected] |
| 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
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