MG90D 5/10/20/30/40/50Pcs Micro Digital Servo Motor Full Metal Gear 180/270/360 Degree For RC Airplane Helicopter Car Boat Model

 Item Specifcation Size : 22.412.122.8mm Weight : 13.5g Gear type: Metal Limit angle 2005 Bearing NO Horn gear spline : 20T 4.9mm Horn type : Plastic, POM Case : Engineering plastics(PBT) Connector wire : 250mm 5mm Motor : Carbon brush motor Splash water resistance : No Operat voltage 4.8V 6.0V No load speed 0.12sec/60 0.09sec/60 Peak stall torque 1.8kg.cm 2.0kg.cm Stall current 750mA ± 10% 860mA ± 10% Command signal Pulse width modification Amplifier type : Analog controller Pulse width range :500-2500usec Neutral position :1500usec Dead band width 8 usec Attention :  the Metal Arm just for show, not included , this link just sell the servo !