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4.3 out of 5 Customer Rating

HS-77BB Standard Analog Low Profile Servo

Item No. HRC31077S
Brand Logo
4.3 out of 5 Customer Rating

HS-77BB Standard Analog Low Profile Servo

Item No. HRC31077S
$29.99
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Product Details

With its low profile design and strong standing torque, the HS-77BB is a great choice for wing or tail mounting in aircrafts up to 1.20 size. Submarines, boats, cars and trucks can also benefit from this servo’s strength and compact size.
Key Features
  • Speed: @4.8V .18sec/60' / @6.0V .14sec/60'
  • Torque: @4.8V 61.1oz/in / @6.0V 76.3oz/in
  • Low Profile Compact Design
  • High Torque Three-Pole Ferrite Motor
  • Durable Nylon Gears
  • Top Ball Bearings
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In The Box
  • (1) HS-77BB Standard Analog Low Profile Servo
HS-77BB Standard Analog Low Profile Servo

Product Specifications

Deadband >5µs
Input Voltage 4.8V ~ 6.0V
Application Glow, Electric Aircraft, Boats, Cars
Product Weight 1.23 oz (35g)
Spline Count 24 - Tooth
Water-Resistant No
Bearing Top Ball Bearing
Bushing Or Bearing Bearing
Gear Type Nylon
Wire Gauge 25 AWG
Product Height 0.98" (25 mm)
Servo Type Analog
Programmable No
Servo Size Category Low Profile
Current Draw Stall 800 mA
Motor Type Brushed
Servo Operating Voltage 4.8 - 6.0V
Connector Type Universal
Maximum Servo Speed 0.18 sec/60 deg @ 4.8V, 0.14 sec/60 deg @ 6.0V
Product Length 1.73" (44 mm)
Current Draw Idle 8mA
Product Width 0.9" (23 mm)
Maximum Servo Torque 61oz/in @ 4.8V, 76oz/in @ 6.0V