20KG Digital Coreless Standard Servo Large torque High Precision Metal Gear RC model plane helicopter car FEATURE:– High performance digital standard servo– High-precision Taiwan-made aluminium gears with hard anodizing– CNC aluminium middle Shel– Dual ball bearingsSPECIFICATIONS: Dead band: 2μs Working frequence: 1520μs / 330hzOperating Speed (4.8V): 0.18 sec/60°Operating Speed (6V): 0.16 sec/60°Stall Torque (4.8V): 17.25 kg.cm (239.55oz/in)Stall Torque (6V): 20.32 kg-cm (281.89 oz/in)Dimensions: 40.5X20.2X38mm /1.59 X0.80X49 inWeight: 62 g (2.18oz)Connector Wire Length: JR 265 mm (10.43in)Bearing: 2BB