9g Continuous Rotation Micro Servo

FeeTechSKU: RB-Fit-02
Manufacturer #: FS90R

Price  :
Sale price £5.08

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Stock  :
In stock, 49 units

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  • Micro 360 Continuous rotation analog servo
  • Operating Voltage: 4.8-6Volts
  • Plastic gears
  • Speed: 0.12sec/60degree

The 9g Continuous Rotation Micro Servo is the most affordable continuous rotation servo on the market and includes three types of servo horns. Use it to make a mini 2WD robot without the need for a motor controller!

Version 2 updates:

  • Dead band expand from 10us to 90 us
  • Use SMD potentiometer
  • Size: 23.2 X 12.5 X 22.0 mm
  • Operating Voltage: 4.8V - 6V
  • Free-run current  6V: 200mA
  • Stall current 6V 600mA
  • Speed (4.8V): 110RPM
  • Speed (6V): 130RPM
  • Stall torque (4.8V): 18oz-in / 1.3 kg-cm
  • Stall torque (6V): 21oz-in / 1.51 kg-cm
  • Connector Wire Lenght: 20cm
  • Required Pulse: 900us-2100us
  • Direction: CCW
  • Operating Angle: 360 degrees
  • Weight: 9g

Customer Reviews

Based on 18 reviews
Work as described

It works great


I originally purchased these from Amazon, being a novice to the tech scene. When I received that order, they were not what I needed. I was directed to RobotShop.com by a more experienced tech person and was more than thankful. The RobotShop.com site helped me get exactly what I needed, and the shipment came very quickly. I will be using them again for future purchases.

Nice but unstable

Tiny and speedy, but impossible to get a steady stop position set, it drifts all over the place. I am going to have to add a relay to shut off power to the servo when I want a full stop out of it.

Rick Winscot
When 90 degrees isn't enough...

I've modified a lot of servos for continuous rotation over the years... they make great motors for little robots. However, the process is time consuming and when you make a mistake, it's like blowing your nose in a five-dollar bill. Being able to buy them as continuous rotation servos is awesome - having a trim is even more awesome-er. Keep in mind that this servo is constructed with nylon gears, an abrupt stall may destroy the servo.

Nice Servos

Used these for a robotics and Arduino class with 5th through 8th graders. Didn't really have the time or financial leeway to go the motor controller route. All went well. I'm glad these exist, I'm glad I got em' and I will do it again.

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