SunnySky X2216 Brushless Motors Short Shaft Version 1250KV

X series of motors are processed by CNC milling, the hollow-designed appearance not only guarantee good heat dissipation, but also greatly reduce motor weight. In addition, it also make motors look more strong at visual.Stainless steel solid shaft The motor shaft is made of 420 stainless steel material imported from Japan. After heat treatment, the shafts are improved to high strength, excellent ductility, and better resistance to bending and breaking.6061-T6 Aviation aluminum alloy Top and bottom caps are made of high strength 6061-T6 aviation aluminum alloy, with high hardness and high strength of extension, which can ensure reliable performance of motors.Imported NMB bearings X series uses customized NMB mini bearings imported from Japan, which provide longer life, quiet and stable operation of these motors.Hand wound The coils of X motors are all hand wound. This manufacturing procedure costs much more in labor, but makes the coil tight, neat, better coil space factor, and can increase the continuous power output of motors. Stator Diameter22mmRotor Diameter27.5mmStator Thickness16mmShaft Diameter3.175mmNo.of Stator Slots12Body Length    (Without Shaft)34mmNo.of Rotor Poles14Body Length36.5mmMotor Kv1250Max Lipo Cell2-4SNo-load current1.1A/10VESC40AMotor Resistance63mΩRecommended Prop(inch)APC9047/APC9045/APC9060/APC8060/APC1047Max Continuous Current28A/30sWeight for aerobatics airplane720g (3S 9060\9047\9045) (4S 8060)Max Continuous Power392WWeight for aerobatics airplane650g (3S 9047\1047)Weight72g Prop(inch)Voltage(V)Amps(A)Thrust(gf)Watts(W)Efficiency(g/W)Load temperature in 100% throttleAPC104711.10.71007.7712.8700128758°1.820019.9810.010010013.130034.418.7183958154.540049.958.0080080086.550072.156.930006938.360092.136.51253663310.5700116.556.00600600612.7800140.975.67496630515.6900173.165.19750519818.11000200.914.97735304420.81100230.884.764379764271270299.74.237570904291350321.94.193849021APC906011.1110011.19.00900900942°2.320025.537.8339208773.730041.077.3046018995.540061.056.5520065527.550083.256.0060060069.6600106.565.63063063111.6700128.765.43647095414.2800157.625.07549803316.7900185.374.85515455620.81040230.884.504504505APC904511.10.91009.9910.0100100142°2.120023.318.580008583.730041.077.3046018995.340058.836.799252082750077.76.435006435960099.96.00600600610.9700120.995.78560211613.3800147.635.41895278717.5980194.255.045045045APC806011.11.110012.218.1900081957°2.920032.196.2131096614.830053.285.630630631740077.75.1480051489.3500103.234.84355323111.8600130.984.58085203814.7700163.174.2900042917780188.74.1335453114.80.910013.327.5075075082.220032.566.1425061433.930057.725.1975051985.640082.884.8262548267.55001114.5045045059.6600142.084.22297297312.3700182.043.84530872314.7800217.563.67714653417.2900254.563.53551225620.31000300.443.32845160426.51210392.23.085160632APC904711.10.81008.8811.2612612645°2.120023.318.580008583.530038.857.7220077225.140056.617.0658894196.950076.596.5282673988.860097.686.14250614310.7700118.775.89374421213.3800147.635.41895278716.1950178.715.315874881