GRAUPNER HBS 690BB BRUSHLESS HV DIGITAL SERVO 7981 High-voltage brushless metal body servo (HBM) High-voltage, 2-cell LiPo batteries provide a direct power supply. This is the new product range from the digital servo segment, HBM (high-voltage brushless metal body servo). With a maximum permissible operating voltage of 8.4V, the new battery technology can be used without reservation. Naturally, these servos can also be operated with a conventional 6.0 V supply. The very best production quality tops off this line of our servos. Brushless motor Metal body Direct operation with 2-cell LiPo batteries Digital servo with dynamic torque, outstanding speed, excellent response characteristics and holding torque Programmable 2048 high resolution Bandwidth 20Hz~400Hz 12-bit processing in the circuit Operating voltage range 4.8 ... 8.4 V Ball bearings Metal gearbox Technical information Operating voltage neutral [V] : 4,8 ... 8,4 Width [mm]: 16 Brushless: Yes Gear unit: Metal Weight [g]: 43 High-Voltage: Yes Height [mm]: 34,5 Bearings: 2 Ball-Bearing Overall length [mm]: 35 Servo series: HBM Servo Torque 5.20kg @ 4.8V Torque 6.12kg @ 6.0V Transit speed at 4.8 V, approx. [Sek / 40°] : 0,08 Transit speed at 6.0 V, approx. [Sek / 40°] : 0,07 Transit speed at 7.4 V, approx. [Sek / 40°]: 0,05