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X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters

X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters


  • Brand:KST Servos
  • Product Code:KST-BR0023.0210
  • SKU:BR0023.0210
  • Availability:Availability on request

Prices are intentionally not displayed on the site. Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Quote quantity Choose the requested quantity, select options/variants if available, and add the item to one combined quote request.

These selections are sent with the SKU, model and quantity so we can check fit and availability.

Why choose X15-855X HV Mini Digital Metal Gear Brushless Tail Servo 15Kgf.cm 0.05sec for RC Helicopters through RC-MODEL?

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.

Fit and use

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.

  • Relevant category: Helicopter Servos, Industrial & UAV Servos, Gears
  • Product identification for inquiry: model KST-BR0023.0210 / SKU BR0023.0210

Key details

  • Features: Support High Voltage 8.4V; Extreme Torque and Excellent Speed; Programmable; Dual Ball Bearings; Brushless DC Motor; Hardened Steel Gears...
  • Gear Set Material: Hardened Steel
  • Size Class: Mini Servos
  • Package Includes: 1 * X15-855X Tail Servo; 1 * CNC Servo Horn; 1 * Plastic Servo Horn; 1 * Servo Horn Screw; 4 * Mounting Screw
  • Manufacturer: KST Servos
  • Rated Voltage: DC7.4V

Before ordering

  • Confirm dimensions, power system, radio compatibility or material size before purchase.
  • Ask us to match required accessories, adhesives, hardware, batteries or replacement parts.
  • RC-MODEL helps with fit checks, availability, compatible accessories and a formal quote in Israel.

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: [email protected], [email protected], [email protected]
  • Speed: 0.07sec/60°@6.0V, 0.06sec/60°@7.4V, 0.05sec/60°@8.4V
  • Working Frequency: 760μs/560Hz
  • Temperature Range: -10℃……+65℃
Relevant RC Academy guides

Learn before you buy

These guides explain the setup, safety checks and accessory choices that usually matter for this product type.

Buying guides

Which servo fits each RC aircraft type?

A buying table for matching servo size, torque, speed, gear type and voltage to trainers, gliders, 3D aircraft, EDF jets and Giant Scale models.

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