Specification: Dead band: 1s Working frequence: 1520s / 330hz Motor: coreless motor Operating Speed (6V): 0.11sec/60 Operating Speed (7.4V): 0.09sec/60 Stall Torque (6V): 22.61kg.cm (313.99oz/in) Stall Torque (7.4V): 27.45kg.cm (381.37oz/in) Dimensions: 40.5X20.5X40mm /1.59X0.80X1.57in Weight: 63g (2.22oz) Connector Wire Length: JR 265 mm (10.43in) Bearing: 2BBFeature:1.CNC metal on the cover in the shell.2. High percision Taiwan-made aluminum gear with hard anodizing 3. High voltage coreless digital servo. Packaging Included:1X JX CLS6327HV Coreless Digital Servo