HBS 870 BBMG Torque 20mm HV BL Digital Servo
HBS 870 BB, MG Servo

HBS 870 BBMG Torque 20mm HV BL Digital Servo

P/N: 7991


Manufactured with high-quality components such as ball bearings and designed to operate on a single 2-cell LiPo Pack, the Graupner HBS 870 BBMG Torque High-Voltage Brushless Digital Servo provides the same great performance as a traditional standard servo.  Optimized for high voltage (8.4V), the HBS 870 BBMG is specially designed around a high-performance brushless motor, precision-cut metal gears and heat sink case to provide lower operating temperatures and longer run times.

Fully programmable to meet your unique specifications via the free Graupner Servo Setup Software, the HBS 870 BBMG is ideal for all model types: motor/glider planes, helicopters, boats, cars and motorcycles.


  • Brushless motor
  • High Voltage
  • At least five times more durable and 30% faster response times than brushed servos
  • Small current consumption equivalent of 5.0V class Digital Servo
  • Programmable Digital Circuit and SMT circuitry
  • 2048 high resolution
  • Supporting 1-16µ depending on programming
  • Wide frame rate range of 20Hz-400Hz
  • 12-bit processing circuit (At least twice resolution comparing to 10-bit processing circuit)


  • 700-800 size helicopters
  • IMAC class 3D airplanes
  • 2-meter pattern airplanes
  • Large scale airplanes


  • HBS 870 BBMG High-Voltage Brushless Digital Servo
  • Horn set