Servo Brushless HBS 870 BB MG 4,8V-8,4V Graupner 7991

Servo Brushless HBS 870 BB MG 4,8V-8,4V Graupner 7991

Ideal for motorised model aircraft and model gliders, helicopters (swashplate), model boats and RC cars. Overvoltage diodes provide protection against voltage peaks caused by return currents.

- High voltage, operating voltage up to 8.4 V!
- Direct operation with 2-cellLiPo batteries
- Operating voltage range 4.8 ... 8.4 V
- Brushless
- 2 x ball bearings
- Metal gearbox

Info
High-Voltage Brushless Servo (HBS) HBS (high-voltage brushless servo) combines the performance of brushless technology with all the advantages of high-voltage servos. In addition to the unparalleled acceleration, greater efficiency, and no wear of carbon brushes, these servos can be supplied with an operating voltage of up to 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 in manufacturing and assembly as well as the very best component quality make uncompromising power and speed available to the servo mechanism. A new dimension in the combination of power, speed, acceleration, precision, and resolution.

Specification:
- Width [mm]: 20 mm
- Holding torque 6.0V, approx. [Ncm]: 220 Ncm
- Height [mm]: 40 mm
- Transit speed at 6.0 V, approx. [Sek / 40°] : 0,09 Sek/40°
- Weight [g]: 68 g
- Angular travel incl. trim, approx. : 2 x 45 °
- Transit speed at 7.4 V, approx. [Sek / 40°]: 0,07 Sek/40°
- No-load current drain, approx. [mA] : 47 mA
- Torque at 6.0 V, approx. [Ncm]: 110 Ncm
- Holding torque 7.4V, approx. [Ncm]: 260 Ncm
- Overall length [mm]: 40 mm
- Charging rate at 6.0V approx. [mA]: 2390 mA
- Dimensions [LxWxH in mm]: 40 x 20 x 40 mm
- Torque at 7.4 V, approx. [Ncm] : 130 Ncm
- Bearings: 2 Ball-Bearing
- Replacement gearbox: 7991.2
- Charging rate of 7.4 V approx. [mA]: 2850 mA
- Gear unit: Metal
- Operating voltage neutral [V] : 4,8 ... 8,4 V
- Neutral impulse: 1,5 ms
- Max. operating frequency [ms / Hz]: 2,5 / 400 ms / Hz
- Brushless: Yes
- High-Voltage: Yes
- Servo type: digital
- Servo series: HBS Servo