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The Hitec HS-645MG is a powerful metal-geared analog servo weighing 55g (1.94oz) designed for sport planes and buggies that require a durable and high-torque servo.

Includes manufacturers fittings.

For full servo specifications, please refer to the specification tab above. A list of similar servos is also shown, where available, and is based on torque values only. All of our servos include standard manufacturers fittings.

Please note, as we buy our servos in bulk, many of the analogue Hitec servos are shipped to us packed like this, individual servos may therefore arrive loose-packed. Please do not grab and rotate servo arms by hand – this is not good for the gears and with todays light-weight servos can easily strip gears. A servo tester is a worthwhile investment.

Servos similar to the HS-645MG High Torque Metal Gear Servo

Torque in kg·cm
Servo 4.8V 6.0V 7.4V Weight Price Stock
 HS-645MG High Torque Metal Gear Servo (This one) 8.00 10.00 - 55.0g $20.79
 HS-5625MG Digital Servo 7.90 9.40 - 59.8g $26.25
 HS-7966HB High Speed Karbonite Coreless Servo 6.60 8.00 - 53.0g $30.79

Technical Details for HS-645MG High Torque Metal Gear Servo

Torque @ 4.8V (kg·cm)8
Torque @ 6.0V (kg·cm)10
Torque @ 7.4V (kg·cm)-
Speed0.2 / 0.24
Bearing TypeDual Ball Bearing
Motor Type3 Pole
Dimensions (mm)40.39x19.56x37.59
Weight55.0g (1.9oz.)
$24.95 inc. VAT
Based on base price of £24.95 inc. VAT
temporarily out of stock
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