The S8000 super strong steel gear train, digital precision and outstanding output of 306 oz.-in. of torque is ideal for the scale racer that demands a rugged servo that can handle the abuse of today’s racing environment.
Built specifically for the 1/8th scale racing market, the S8000 is appealing to off-road racers that are more torque conscious. The motors are larger than those of standard size servos, and paired with steel gears mean the S8000 servo is built to last.
An aluminum spacer and instructions are included to help with the installation of this larger servo in a standard mount location. A coreless motor, 22 AWG lead wire and dual ball bearings insure less overall operational resistance and higher reliability.
Digital and analog servos have very similar construction and components. They both use the same type of motors, gears, cases, and have a potentiometer. A digital servo is different in the way it processes the incoming signal and converts that signal into servo movement.
An analog servo when it receives a command to move, takes that signal and sends pulses to the servo motor at about 50 cycles per second, which in turn moves the motor to its required position determined by the potentiometer.
A digital servo has a micro-processor that receives the signal and then adjusts the pulse length and amount of power to the servo motor to achieve optimum servo performance and precision. A digital servo sends these pulses to the motor at a much higher frequency which is around 300 cycles per second. This helps eliminate deadband, provides a faster response to the servo motor, smoother motor movement, and has higher resolution and holding power than an analog servo.
There are some disadvantages to digital servos, but the disadvantages are not in any way close to out weighing the advantages. A digital servo will have a higher power consumption (Around 10 to 15 mAh per servo at idle) than an analog servo due to its higher pulse frequency, so larger capacity battery packs are recommended. Digital servos also are more expensive than analog servos which can get very costly in applications that require many servos.