Graupner Servo HBS 870 BB MG Brushless HV #7991

Suitable for power models and gliders, helicopters, boat models, and RC cars.

High-voltage, operating voltage up to 8.4V!
Direct operation with 2-cell LiPo battery packs
Operating voltage range 4.8 ... 8.4 V
Brushless
2 x ball bearings
Metal drive mechanism

High-Voltage Brushless Servo (HBS)

HBS (high-voltage brushless servo) combines the performance of brushless technology with all the advantages of the high-voltage servo. In addition to the unparalleled acceleration, greater efficiency, and no wear of carbon brushes, these servos can be supplied with an operating voltage of 8.4V. Direct connection of 2-cell LiPo battery packs is now possible with no problem; in addition, these servos also provide top performance at an operating voltage of just 6V. Precision manufacturing and assembly and top component quality provide the servo drive system with uncompromising power and speed. A new dimension in the combination of power, speed, acceleration, precision, and resolution.

Specification:

Dimensions (LxWxH) 40 x 20 x 40 mm
Operating voltage 4,8 ... 8,4 V
Angular travel incl. trim, approx. 2 x 45°
Replacement gearbox 7991.2
All-up weight, approx. 68 g
Holding torque 6.0V, approx. 220 N/cm
Holding torque 7.4V, approx. 260 N/cm
No-load current drain, approx. 47 mA
Torque at 6.0V, approx. 110 N/cm
Torque at 7.4V, approx. 130 N/cm
Transit speed at 6.0 V, approx. 0.09 s/40°
Transit speed at 7.4V, approx. 0.07 s/40°
Charging rate at 6.0V approx. 2390 mA
Charging rate of 7.4V approx. 2850 mA