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. (
Stall Torque (6.0V): 113.87 oz/in. (
Operating Angle: 170 Deg. one side pulse traveling 400usec
Continuous Rotation 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: Top 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)

Detailed Specifications


 114 oz-in.


 0.34 sec/60°

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.

C1 Hitec Spline2

Click for more information

Uses C1 Standard Spline

General Servo Information

More Info

What is a servo

More Info

How servos work

More Info

what servo to use

More Info

Servo Power and Speed

More Info

Rotation Direction

More Info

Connector Types

More Info

180 rotation

More Info

Continuous Rotation










Conversion Calculators - Click Here

Hitec Servo Accessories

Click on the picture for further information.

Servo Screws

Servo Hardware

Servo Extensions

Servo Arms

Hitec Casesets

Share with friends!

Copyright 1999-2015 Robotzone, LLC. - All Rights Reserved
ServoCity is a registered trademark of Robotzone, LLC.

We have the parts for your ideas!
HS-75BB Retract
Customer Login
New Products! - Click Here


View Shopping Cart button
ServoCity on Facebook3
ServoCity on Google Plus
ServoCity on Pinterest1
ServoCity on Twitter2
ServoCity on Vimeo
ServoCity Blog1
ServoCity on YouTube1
ServoCity is Comodo Secure

Huge Selection. Low Prices.