Digital Servo—DC-1240MG Bearing:2BB Gear Type:Metal & Aluminum Speed:0.13 sec/60°at 4.8V 0.11 sec/60°at 6.0V Torque:2.3kg / cm at 4.8V 4.5kg / cm at 6.0V Size(mm):L35 x W15 x H29.2 Weight:25.9g Ambient Temperature: :-20℃~60℃