Type: Digital Bearing: Dual Motor Type: Coreless Gear Type: Metal Gear Material: Titanium & Alu control system: pulse width control working frequence: 1520μs / 330hz operating voltage: dc6.0-7.4v operating temperature range: -10 to + 60 degree operating speed (6.0v): 0.07 sec/60 degrees at no load operating speed (7.4v): 0.06 sec/60 degrees at no load stall torque (6.0v): 9.0kg.cm (125.0 oz/in) stall torque (7.4v): 12.0kg.cm (166.6 oz/in) potentiometer drive: direct drive dimensions: 41.0x20.0x26.4 mm /1.61x0.79x1.04 in weight: 41.0g (1.45 oz) connector wire length: jr 180 mm