Savox Servo
The Engineer’s Choice: Navigating the Savox Servo Ecosystem
Whether you are looking for the best savox servo for 1 8 buggy racing or a precise savox 1 12 servo for carpet pan cars, understanding the technical nuances is vital. Savox has earned a reputation for high-torque performance, but as any senior engineer will tell you, that power comes with specific power requirements. If you’re integrating these into a high-performance build, ensure your power lead is up to the task; using a high-discharge 100C Lipo Battery is often necessary to prevent the dreaded ‘Savox brownout’ during high-torque maneuvers.
Savox Servo Comparison Chart
Model
Type
Torque (6.0V)
Speed (6.0V)
Best Use Case
SH0255MGP
Micro Digital
3.9 kg/cm
0.13 sec
Micro Helis / Small FPV
SC-0251MG
Standard Digital
16.0 kg/cm
0.18 sec
1/10 Scale Basher
SW-1210SG
Waterproof Coreless
20.0 kg/cm
0.15 sec
1/8 Buggy / Crawlers
SA-1230SG
Monster Torque
36.0 kg/cm
0.16 sec
1/5 Scale / Heavy Steering
Addressing the “Savox Whine” and Power Issues
A common pain point discussed on Reddit is that Savox servos are “notoriously noisy.” As an engineer, I can confirm that the whining at the end of travel is usually the servo straining against a physical limit. To fix this, you must calibrate your endpoints immediately. Furthermore, because a digital servo savox pulls significant current, many users experience receiver glitches. I recommend installing a ‘glitch buster’ capacitor or ensuring your BEC can handle at least 5A of peak current.
When mounting your savox 1 10 servo into a new FPV Frame Kit or RC chassis, always verify the spline count. While standard and mini Savox servos utilize 25 splines (compatible with Futaba horns), their micro series like the savox sh0255mgp use a 21-spline output. Using the correct Drone Tools for installation will prevent stripping these precision gears.
Frequently Asked Questions
Why are Savox servos so noisy?
The whining at the end of travel is the servo straining because you need to set your endpoints. The grinding sounds between the endpoints is normal for high-frequency digital motors.
How many splines/teeth do Savox servos have?
Standard and Mini size Savox servos have 25 splines. Micro servos are 21 spline, and Large Scale (1/5 scale) servos are 15 spline.
What is the Savox SC 0252MG servo?
The Savox SC-0252MG is a high-torque, metal-geared, digital standard servo. It is a popular upgrade for RTR vehicles that come with plastic-geared servos, featuring a durable metal gear train for harsh conditions.
How do I know what size servo to get?
First, verify the mounting hardware compatibility with your chassis. Measure the servo bay dimensions and check the mounting hole spacing. Second, determine your torque requirements based on the weight and scale of your vehicle (e.g., a savox 1 5 scale servo for heavy rigs vs a micro for 1/24 scales).
How can I tell if a servo is bad?
Check for excessive heat, a complete lack of movement while receiving power, or jittering that persists even after checking for radio interference. If the internal gears are stripped, you will hear the motor spinning without the output horn moving.
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