The FS5106R is a standard-sized servo that has been built by FEETECH specifically for continuous rotation, making it an easy way to get your robot moving. It features two ball bearings on the output shaft for reduced friction, and it offers easy access to the rest-point adjustment potentiometer. Key specs at 6 V: 95 RPM (no-load), 83 oz-in (6 kg-cm), 40 g