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.
X20 Combo Brushless Servos - X20-2208 + X20-1035 Combo Set for RC Helicopter 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 | BR0023.0217 |
| All Variant SKUs | BR0023.0217 |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Working Frequency | 1520us/333Hz; 760us/560Hz |
| Default Travel Angle | ±50°=100°Total |
| Temperature Range | -10℃……+65℃ |
| Case Material | Aluminum Alloy |
| Motor Type | Brushless DC Motor |
| Gear Set Material | Hardened Steel (HLS) |
| Position Sensor | Potentiometer |
| Ball Bearing | 6 BB |
| Case Dimensions | 40mm*20mm*40mm±0.2mm |
| Weight | 72g±10% |
| KST Collections | Helicopter Servos, Industrial, Standard Servos, X Series |
| Series | X Series |
| Size Class | Standard Servos |
| Application | Helicopter Servos |
| Features | Brushless DC motor; Extreme torque and Excellent speed; Hardened steel gears; 6 Ball bearings; Ideal for 500 to 800 Class EP/GP Helicopters |
| Package Includes | 3 * X20-2208 V8.0; 1 * X20-1035 V3.0; 4 * CNC Servo Horn; 20 * Plastic Servo Horn; 16 * Grommets |
| Torque | 1.8N.m@6.0V, 2.2N.m@7.4V, 2.5N.m@8.4V; 0.9N.m@6.0V, 1.1N.m@7.4V, 1.2N.m@8.4V |
| Speed | 0.09sec/60°@6.0V, 0.08sec/60°@7.4V, 0.07sec/60°@8.4V; 0.040sec/60°@6.0V, 0.035sec/60°@7.4V, 0.030sec/60°@8.4V |
| Product Type | RC |
| Total Temperature Range | -10°C.......+65℃ |
Tags: KST Servos, BR0023.0217, Helicopter Servos, Industrial & UAV Servos, Standard Servos, X Series, RC servo
We use essential cookies to operate the store. Optional cookies are used only with your consent. You can read the full policy here.