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X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec for RC Helicopters

X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec for RC Helicopters


  • Brand:KST Servos
  • Product Code:KST-BR0023.0154-1
  • SKU:BR0023.0154-1
  • 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 X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec for RC Helicopters through RC-MODEL?

X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec 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

X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec for RC Helicopters fits customers looking for KST Servos items in Helicopter Servos, Industrial & UAV Servos, Standard Servos, with RC-MODEL support for choosing the right configuration.

  • Relevant category: Helicopter Servos, Industrial & UAV Servos, Standard Servos
  • Product identification for inquiry: model KST-BR0023.0154-1 / SKU BR0023.0154-1

Key details

  • Features: Brushless DC Motor; Hardened Steel Gears; Contactless Sensor; Extreme Torque and Excellent Speed; CNC Aluminium Case; 6 Ball Bearings
  • Gear Set Material: Hardened Steel (HLS)
  • Size Class: Standard Servos
  • Package Includes: 1 * X20-7.4-M-820 Standard Servo; 1 Pack of Accessories; Download; X20-7.4-M-820 Servo Technical Specification
  • 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.

X20-7.4-M-820 Brushless HLS 6BB Servo 30Kgf.cm 0.09sec for RC Helicopters is a KST Servos product selected for Car Servos, 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

  • Brushless DC Motor
  • Hardened Steel Gears
  • Contactless Sensor
  • Extreme Torque and Excellent Speed
  • CNC Aluminium Case
  • 6 Ball Bearings

Core Specifications

  • Voltage Range: DC6.0V-8.4V
  • Rated Voltage: DC7.4V
  • Stalling Torque: [email protected]
  • No-load Speed: 0.09sec/60°@7.4V
  • Motor Type: Brushless DC Motor
  • Gear Set Material: Hardened Steel (HLS)
  • Ball Bearing: 6 BB
  • Case Dimensions: 40mm*20mm*40mm±0.2mm
  • Weight: 75g±10%
  • Item: X20-7.4-M-820 HV Servo
  • Rated Torque: [email protected]
  • Stalling Current: 4.95A
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 BR0023.0154-1
All Variant SKUs BR0023.0154-1
Rated Voltage DC7.4V
Voltage Range DC6.0V-8.4V
Stalling Torque [email protected]
No-load Speed 0.09sec/60°@7.4V
Working Frequency 1520μs/333Hz
Default Travel Angle ± 100°=200° Total When 500μs-2500μs
Temperature Range -10℃……+65℃
Case Material Aluminium Alloy
Motor Type Brushless DC Motor
Gear Set Material Hardened Steel (HLS)
Position Sensor Contactless
Ball Bearing 6 BB
Case Dimensions 40mm*20mm*40mm±0.2mm
Weight 75g±10%
KST Collections Helicopter Servos, Car Servos, Industrial, Standard Servos, X Series
Series X Series
Size Class Standard Servos
Application Car Servos, Helicopter Servos
Features Brushless DC Motor; Hardened Steel Gears; Contactless Sensor; Extreme Torque and Excellent Speed; CNC Aluminium Case; 6 Ball Bearings
Package Includes 1 * X20-7.4-M-820 Standard Servo; 1 Pack of Accessories; Download; X20-7.4-M-820 Servo Technical Specification
Item X20-7.4-M-820 HV Servo
Product Type RC
Rated Torque [email protected]
Rated Speed 0.17sec/60°@7.4V
Rated Current 1.25A
Stalling Current 4.95A

Tags: KST Servos, BR0023.0154-1, Helicopter Servos, Car Servos, Industrial & UAV Servos, Standard Servos, X Series, RC servo