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BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 Helicopters

BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 Helicopters


  • Brand:KST Servos
  • Product Code:KST-BR0023.0046
  • SKU:BR0023.0046
  • 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 BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 Helicopters through RC-MODEL?

BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 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

BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 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-BR0023.0046 / SKU BR0023.0046

Key details

  • Features: Hardened Steel Gears; Extreme torque and Excellent speed; CNC aluminium case; Brushless DC Motor; Two Ball Bearings
  • Gear Set Material: Hardened Steel
  • Size Class: Standard Servos
  • Package Includes: 1 * BLS905X Brushless Servo; 1 Pack of Accessories; Download; KST BLS905X Servo Technical Specification
  • Manufacturer: KST Servos
  • Working Frequency: 760μs/560Hz

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.

BLS905X Brushless Tail Servo 8Kgf.cm 0.035sec/60° for 550-700 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

  • Hardened Steel Gears
  • Extreme torque and Excellent speed
  • CNC aluminium case
  • Brushless DC Motor
  • Two Ball Bearings

Core Specifications

  • Motor Type: Brushless DC Motor
  • Gear Set Material: Hardened Steel
  • Ball Bearing: 2 BB
  • Case Dimensions: 40.5mm*20mm*38mm±0.2mm
  • Weight: 70g±10%
  • Item: BLS905X Brushless Tail Servo
  • Operating Voltage: DC6.0V-8.4V
  • Size: 40.50*20*37mm
  • Torque: [email protected] / [email protected] / 6Kgf.cm @6.0V
  • Speed: 0.035sec/60°@8.4V, 0.040sec/60°@7.4V, 0.045sec/60°@6.0V
  • 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

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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 BR0023.0046
All Variant SKUs BR0023.0046
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 2 BB
Case Dimensions 40.5mm*20mm*38mm±0.2mm
Weight 70g±10%
KST Collections Helicopter Servos, Industrial, Standard Servos, BLS Series
Series BLS Series
Size Class Standard Servos
Application Helicopter Servos
Features Hardened Steel Gears; Extreme torque and Excellent speed; CNC aluminium case; Brushless DC Motor; Two Ball Bearings
Package Includes 1 * BLS905X Brushless Servo; 1 Pack of Accessories; Download; KST BLS905X Servo Technical Specification
Item BLS905X Brushless Tail Servo
Torque [email protected] / [email protected] / 6Kgf.cm @6.0V
Speed 0.035sec/60°@8.4V, 0.040sec/60°@7.4V, 0.045sec/60°@6.0V
Product Type RC
Operating Voltage DC6.0V-8.4V
Size 40.50*20*37mm

Tags: KST Servos, BR0023.0046, Helicopter Servos, Industrial & UAV Servos, Standard Servos, BLS Series, RC servo