Hitec HS-77BB Servo Low Profile BB Universal

Hitec HS-77BB Servo Low Profile BB Universal
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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.


  • Size Category: Specialty
  • Type: Analog
  • Application: Aircraft, 1/10th scale steering
  • Torque: 61.1 oz/in (4.4kg/cm) @ 4.8V, 76.3 oz/in (5.5kg/cm) @ 6V
  • Speed: 0.18 sec/60 deg @ 4.8V; 0.14 sec/60 deg @ 6V, at no load
  • Length: 1.73 in (44.0mm)
  • Width: 0.90 in (23.0mm)
  • Height: 0.98 in (25.0mm)
  • Weight: 1.23 oz. (35g)
  • Bushing Or Bearing: Bearing
  • Bearing: Single
  • Motor Type: 3 Pole
  • Connector Type: Universal
  • Gear Type: Nylon
  • Current Draw Idle: 8mA
  • Voltage: 4.8V to 6.0V
  • Deadband: 8µs

This product was added to our catalog on February 6, 2008

Verified Owner
Sunday, Jan 18 2015 (about 6 years ago)
Hitec HS-77BB Servo Low Profile BB Universal
this low profile servo work very well I had it almost year now. I am using it in my Atomic M series VM II lipo car