The S9177SV is currently the most powerful standard size servo in the range, with an amazing 41Kg/cm torque at 7.4V. It also features dual ballraces, metal gears and a metal centre case.
Specification
Case: Metal/Plastic
Type: Digital Coreless
Weight: 74g
Voltage: 6 – 7.4V
Dimensions: 40.5 x 21 x 37.2mm
Gear Type: Metal Gear
Speed: 0.11 sec/60° @ 7.4V
Torque: 41.0 kg/cm @ 7.4V