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.
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.
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.
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.
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 | BR0023.0046 |
| 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
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