NTM Prop Drive motors are rock-solid performance outrunners with tight windings, quality bearings, correctly rated magnets, balanced stator and flux rings, tool-steel shafts plus they are QC checked at 14 points, from material processing all the way through to final dyno test.
Because we design and build these motors completely in-house (from 3D/2D drawing to materials sourcing, machining, balancing, final assembly and dyno) we can completely control production and ensure product consistency from design right through to shipping the product to you. The removal of middle-men has meant we can drive better value to the market and retail these motors at factory(our) prices! All performance figures are real and tested on our own motor dynos.
Our QC engineer checks and balances each motor before shipping to the HobbyKing.com warehouse.
Do I have to disassemble the motor to add some glue to the magnets? I would like to use a toothpick to add a tiny amount of glue for insurance, but I am uncomfortable disassembling the motor.
Also, JB weld makes a cold weld, metal infused epoxy that is designed to withstand up to 550 F when fully cured. Would this be a good choice for gluing/reinforcing magnets?
I have purchased 3 of these motors . All 3 have had the magnets move , they have noisy bearings , and the final straw , one of the grub screws holding the shaft was stripped and eventually the rotor section came loose .
Good value if they did not have problems .
is this agood choice for a PC-6 arf w/s 1600mm weight 2.8-3-2kg .46 size or are there better choices out there , sorry only new to elec so any help would be greatly appreated. at the moment comaring it to the NTM 42-38-750 and 2 Trunigys G46 670kv or the 550 Kv.
I think that the 14x7 size prop is a too small to this motor witk 5s lipo battery.
who is tried to fly with 15x6 prop, but with 5cell battery not with 4s..?
I bought this motor as a replacement for a 4250 SK 650kv. I am running it in my 63" P-51D with a 13x8 prop 5s 5000mah 30-40C Lipo. I get excellent performance.
Put it on the box and it ran at 1375 watts 77amp draw at full throttle. It seemed fine. It didnt get all that hot and I am comfortable wit these numbers.
However this motor lacks a prop shaft. Lucky for me I have access to a full machine shop (metal lathe and Mill) and I was able to myself a prop shaft from 6061 Aluminum to match the plane. BEAUTIFUL. Couldnt be happier and will certainly buy another soon.
3 comments. Reply..
Motor looks great, but it doesn't come with prop drive or mounting plate and attendant screws. I think you should mention that in the description.
Also the prop drive is 3 screw mounting so the mount will have to be peculiar to this motor. I can't use my other Turnigy prop drives.