这是我们的短杆NTM 28-30S 900kv无刷电机的外转子。它是建立在没有外部轴可以让您轻松装入此电机您的多转子框架，而不需要任何修改。
因为我们设计并完全建立这些电机内部（从3D / 2D绘图到材料采购，加工，动平衡，总装和测功机），我们可以完全控制生产，保障权利，通过将产品送到您从设计产品的一致性。的中间人的取消意味着我们可以更好地驱动价值的市场，并在工厂（我们）的零售价格，这些马达！所有表现数据是真实的，在我们自己的电机dynos测试。
KV：900RPM / V
最大功率：215W @ 12V（3S）/ 270W @ 15V（4S）
13x4E - 11.1V - 194W - 17.4A - 1.04千克推力
12x6E - 11.1V - 195W - 17.8A - 1.01千克推力
11x7E - 11.1V - 188W - 17.0A - 0.89千克推力
10x5E - 11.1V - 133W - 12.0A - 0.75千克推力
9x6E - 11.1V - 120W - 10.7A - 0.68千克推力
9x6E - 14.8V - 234W - 15.8A - 1.05千克推力
8x4E - 14.8V - 159W - 10.6A - 0.75千克推力
Unit Weight (g):
A tiny little bit of play in the bearings but runs OK. With a 3S 2200mah pack I get 7000rpm on an APC13x4E at 14A. It would be great if the published prop data had rpm figures included.ntm motor always the good powerIT: Ne ho acquistati gi altri, funzionano benissimo.Of the qty 7 I've got now, one came with the prop adapter holes without threads (was drilled oversize can't even fix it). Qty 3 have super rough bearings that need replacement before first flight. Qty 1 has a wicked wobble.
QC on these motors are a joke. Don't waste money on these.Very well balanced motors , I use with 10x4.5 props and 3S battery and is perfect for my quad of 1.5Kg weightThese motors are awesome.
Using them on 450 and 550 mm size Quad-copters, they are very well made, smooth, quiet and powerful. Running 8" and 10" props they never run hot and the machined prop nuts look great when installed.
I would definitely recommend these motors.These are very good motors, look well made and feel very solid.
Used them in 450 and 550 sized Quads and they have plenty of power with 8-10 inch props and are very smooth when running.
Will definitely buy more.First Multi Rotor so not sure what to compare to but bought six of these. Doesn't seem to be a vibration issue but at least one motor started giving problems within about half an hour of flight time. Soon found it when the aircraft suddenly started tipping over at random. Noticed now that the bearings in that motor are very noisy.DON'T RUN THESE ON 4S. 2 out of the 3 motors I bought for my tricopter could not take the 4s and would shut down midflight causing a crash each time. I couldn't figure out what was going on until I tried a 3s lipo. Switching to 3s eliminated the problem.
I saw smoke coming from one motor while on 4s, landed and unplugged...the motor is still working so they are built tough, just not made for 4s. Otherwise, good buy.
FYI the motors come with nothing, not even mounting screws.The C-clips on the rear that hold in the shaft and bearing tend to come loose and render the motor useless.. Other than that, the motors have no other problems. If I can find a replacement bearings and C-clips I will probably continue to use these motors. (2 out of 4 lost the C-clips)