Hitec HS-77BB Low Profile Servo .34sec/114oz @ 6.0v (HRC31077S)
$29.99
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Hitec HS-77BB Low Profile Servo .34sec/114oz @ 6.0v (HRC31077S)
$29.99
Low Profile
Compact space saving design
High Torque
Up to 76 oz in
Fast Speed
0.14 sec at 6V
Nylon Gears
Smooth durable gear train
Ball Bearing
Top ball bearing support
Ferrite Motor
Reliable 3 pole motor
Compact Servo PowerLow profile strength for tight spaces
The Hitec HS-77BB Standard Analog Low Profile Servo delivers impressive torque and speed in a slim, space-saving package. Perfect for RC airplane wing or tail installations as well as tight RC car and boat chassis, this high-performance servo ensures smooth and responsive control. Equipped with a reliable 3-pole ferrite motor and top ball bearing, the HS-77BB servo is an essential upgrade for model builders requiring maximum power in minimum space.
Versatile Servo PerformanceEngineered for aircraft boats and vehicles
Designed specifically for applications where vertical clearance is limited, the Hitec HS-77BB Standard Analog Low Profile Servo offers robust holding power and precise centering. Ideal for wing mountings in glow or electric RC aircraft up to 1.20 size, it also easily accommodates steering and control duties in RC cars, trucks, and boats. Featuring precision nylon gears, a top ball bearing for reduced output shaft play, and up to 76.3 oz-in of torque at 6.0V, this analog servo provides exceptional durability and dependable control across a wide range of hobby applications.
Technical SpecificationsComplete specifications and dimensions list
Compatible Vehicles
Glow/Electric RC Aircraft up to 1.20 size, RC Boats, RC Cars & Trucks
Part Type
Low Profile Analog Servo
Material
Plastic Housing / Nylon Gears
Placement/Position
Wing, Tail, Steering, or Throttle
Dimensions
1.73 x 0.90 x 0.98 in (44 x 23 x 25 mm) (ruler)
Weight
1.23 oz (35g) (scale)
Servo Type
Analog
Servo Size Category
Low Profile
Motor Type
3-Pole Ferrite Brushed
Input Voltage
4.8V - 6.0V
Maximum Speed
0.18 sec/60° @ 4.8V / 0.14 sec/60° @ 6.0V
Maximum Torque
61.1 oz-in @ 4.8V / 76.3 oz-in @ 6.0V
Gear Type
Nylon
Bearing
Top Ball Bearing
Spline Count
24-Tooth
Connector Type
Universal
Current Draw Idle
8mA
Current Draw Stall
800mA
Deadband
>5µs
Water-Resistant
No
Wire Gauge
25 AWG (hash)
Engineered Performance FeaturesBuilt for precision smooth operation
Low Profile DesignUltra-compact dimensions for tight aircraft and vehicle installations
High Torque MotorThree-pole ferrite motor produces up to 76.3 oz-in of torque
Durable Gear TrainPrecision-molded nylon gears provide quiet and dependable operation
Ball Bearing ShaftTop ball bearing minimizes friction and output play
Multi-Vehicle SupportSuitable for airplanes, boats, cars, and trucks
Universal ConnectorDirect fit for standard radio receiver units
Frequently Asked QuestionsEverything you need to know
What applications is the Hitec HS-77BB Standard Analog Low Profile Servo best suited for?
The Hitec HS-77BB Standard Analog Low Profile Servo is ideal for thin wing or tail mounts in RC aircraft up to 1.20 size, as well as tight chassis setups in RC cars, trucks, and boats.
What operating voltage does the Hitec HS-77BB Standard Analog Low Profile Servo support?
The Hitec HS-77BB Standard Analog Low Profile Servo operates on a standard 4.8V to 6.0V input voltage range.
Is the Hitec HS-77BB Standard Analog Low Profile Servo waterproof?
No, the Hitec HS-77BB Standard Analog Low Profile Servo is not water-resistant, so appropriate care should be taken to avoid exposure to moisture.
What type of gear output spline does the Hitec HS-77BB Standard Analog Low Profile Servo use?
The Hitec HS-77BB Standard Analog Low Profile Servo features a standard Hitec 24-tooth output spline.