You get two choices with Hitec's most popular servo the HS-81, resin or metal gears. A popular servo for smaller airplanes, helis, boats, cars and trucks, the HS-81 offers a fine balance between speed and torque.
Features Top selling micro servo Strong three-pole ferrite motor Durable nylon gears
Performance Specifications
Operating Voltage Range (Volts DC) 4.8V ~ 6.0V
Speed (Second @ 60°) 0.11 ~ 0.09
Maximum Torque Range oz. / in. 36 ~ 42
Maximum Torque Range kg. / cm. 2.6 ~ 3.0
Current Draw at Idle 8.8 mA
No Load Operating Current Draw 280 mA
Stall Current Draw 1,500 mA
Dead Band Width 8 µs
Physical Specifications
Dimensions (Inches) 1.17 x 0.47 x 1.16
Dimensions (Metric) 29.8 x 12.0 x 29.6
Weight (Ounces) 0.58
Weight (Gram) 16.6
Circuit Type HT7003 Analog SMT
Motor Type 3 Pole Metal Brush Ferrite
Gear Material Nylon
Bearing Type None
Output Shaft (type / Ømm) Standard 24
Case Material Plastic
Dust / Water Resistance N / A
Connector Gauge (AWG) / Strand Count 28 / 20