The HS-75BB is our only Hitec retract servo. Retract means that it was designed specifically for the landing gear of aircraft. If you are thinking about using this servo for another application, you need to know that it is not a proportional servo. It operates like a two position gearbox. It comes with all the mounting hardware, horns and arms shown below.
Detailed Specifications
Control System: +Pulse Width Control 1500usec Neutral Required Pulse: 3-5 Volt Peak to Peak Square Wave Operating Voltage: 4.8-6.0 Volts Operating Temperature Range: -20 to +60 Degree C Operating Speed (4.8V): 0.45sec/60° at no load Operating Speed (6.0V): 0.34sec/60° at no load Stall Torque (4.8V): 91.65 oz/in. (6.6kg.cm) Stall Torque (6.0V): 113.87 oz/in. (8.2kg.cm) Operating Angle: 170 Deg. one side pulse traveling 400usec 360 Modifiable: Yes Direction: Clockwise/Pulse Traveling 1500 to 1900usec Current Drain (4.8V): 1mA/idle and 150mA no load operating Current Drain (6.0V): 1.6mA/idle and 180mA no load operating Dead Band Width: 20usec Motor Type: 3 Pole Ferrite Motor Potentiometer Drive: Indirect Switch Drive Bearing Type: Single Ball Bearing Gear Type: 1 Metal and 4 POM Resin Gears Connector Wire Length: 11.81" (300mm) Dimensions: 1.73" x 0.90"x 0.98" (44 x 23 x 25mm) Weight: 1.23oz (35g)
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