Questions about my new Neu motor

[Varooom]

Hello gang,

Hope y-all had a great Christmas!

I have some nubie questions about the Neu motor I bought for my TFL Ariane 2 (36.6 inch mono).
I got a Neu 1527 1.5D, 1500Kv, 8mm shaft motor from OSE to power my Q mono sport FE. I will be running 6s.

First question, the box and motor are labeled 1527 1.5D but is not labeled 1500Kv anywhere. I guess I just take there word for it that this is a 1500Kv motor? The box does have what I assume is a part number 2011-009524, maby this designates 1500Kv?

Next question, the shaft is 8mm smooth, no flat spot and about 1 inch long. Do I dare grind a flat spot or will this destroy the balance? Also I assume the shaft is hardened and very hard, what would you grind it with?
It may also be a bit too long, I have not mocked it up yet but if too long can I cut it? With what? I have not ordered a collet yet, is there one that goes on a smooth shaft (no flat spot)?

Third question. The motor has 3 black leads for the ESC. The only boat I have experience with is my Revolt. Motor leads are red, yellow, and blue which match up to the ESC leads. I assume (again) that it does not matter, connect them up and change them if the motor turns the wrong way? (Have not purchased ESC yet, that question will come in another post).

Last one, my motor mount has a clamp that goes around about the middle of the motor besides bolting to the front of the motor. I again assume I need to get a water jacket that fits from the front of the motor to the clamp, only covering a little more than half the motor. The motor is 4 inches long, the water jacket will only be about 2.5 inches. This cant be good for cooling, am I missing something?

Ops, forgot one more question. The motor shaft spins easy in my fingers. The stock 1800Kv in my Revolt is very difficult to spin the bare shaft. Is it normal for these motors to spin so easy?

Sorry for all the questions, I don't know who else to ask, and I do not want to fry anything

Thanks again for your time and help,

Varooom

[Varooom]

Ariane pic3.jpg

Here is a pic of the motor and mount. Not much room for the water jacket. The motor will move further forward about 3/4 of an inch. It is not into the collet in this pic, just resting against it.

Thank you,
Varooom

[Shovelnoserc]

Let's see what I can help with.

I have two Neu 1515 1y 2200kv One new one used.

It looks like Neu does not use the actual KV numbers. They only label the wind type and can size. The 1.5D has been labeled as 1500kv, I'm sure there is a mathematical equation that get us the KV, from the Can size and Wind type, as other 1.5d winds have different KV ratings on other Neu motors.

When I received the used motor it had a flat spot on it. When I purchased the new one, I filed one on the new one.

I have seen very nice couplers that do not require flat spot, I believe from H&M make some. I don't know if filing a flat spot would cause any balancing issues. I sure hope not.

As you assumed the wire leads are black and polarity is random, just try it once you get the ESC and reverse any two wires if things are spinning backwards. If you'd like you can color match the heat Shrink after you have found the match.

I don't know much about clamp on motor mounts, I've seen some pictures of them on different builds. The only thing I can say is that Water Cooling is very important and to make sure that the mount was made for the Neu Motor, as I have seen that 40mm water jacket's (leopards) will not fit 15 series Neu motors due to the SAE vs Metric Measurements. At least this is what I have been lead to believe.

On your last thought about the shaft and ease of spin. That's the first thing I noticed, I searched and came to the conclusion of better bearings and it's a 4 pole motor, there is less resistance on 4-poles compared to the 6-pole Aquacraft Motors, but the Neu's are so smooth the feel like my old 2-pole motors.

Josh

[Shovelnoserc]

[ATTACH=CONFIG]109942[/ATTACH]

Here is a pic of the motor and mount. Not much room for the water jacket. The motor will move further forward about 3/4 of an inch. It is not into the collet in this pic, just resting against it.

Thank you,
Varooom

Just saw your Pic. That mount is meant to have the motor against the front plate as well. You bolt it on with I believe are 3mm screws like the ones on your revolt. (unless the motor has a different thread on it. Mine has 3mm ones) You will either have to modify the Stuffing tube or cut the shaft to appropriate length. The Water Jacket, should fit between the Front plate and back ring. The rear clamp is only there for support on longer motors like yours, but it is not meant to hold the motor under load.

[Varooom]

Thanks Shovel!!

[tlandauer]

If this is the "standard" TFL mount, I think at best it would only allow you to have a cooling jacket no longer than 50mm, as I had found out with my Popeye. If you desire to have a longer jacket, here is what you may consider: ditch the rear ring and see if you can make a support for the rear. The motor is 4'', so you will need somekind of rear support: http://www.offshoreelectrics.com/products.php?cat=43 It will not give me the link because item is out of stock, it is the EIGHTH item counting BACK from the bottom of page. You can use your rear ring and make two side supports . That way you can position the rear ring further back and giving more room for the jacket.

Here is the Neu Motor info:
http://www.offshoreelectrics.com/neu-motor-chart.htm 1527 1.5D IS 1500kv :)

[Varooom]

Tlandauer,
Thank you. Excellent idea. I want as large a cooler as I can get. The bracket looks perfect.

thanks again,

Varooom

[electric]

I have several Neu motors, It's ok to grind a flat spot. I used a dremel tool with a grinder and had no problems doing it. Be sure and tape any openings(haven't done one in so long I have forgotten if there are any openings) so no metal filings get in the motor from the grinding. Yes, you can cut the shaft down if needed, again dremel, although I would try and make it work with the shaft length it came with.

ALL of the neu motors spin freely. I think all the other questions were answered. If you have any more please ask away. By the way, I have motors that are well over 3 years old and still run perfectly and all of them are used for racing. hmm. I bet there some people that have some Neu motors with many years on them and still going strong. Great motors. Haven't had one fail yet.

Oh, also, spray some corrosion X in the motor and let it sit over night. Great stuff and protects everything very well.

[Shovelnoserc]

The oldest one I have is a 1515 1y from 2008. Still Running strong on my DF 33, avg 48-54mph on race trim on 4s.

[kenrid]

Hello Varooom,

Given that you have embarked on a high quality motor upgrade, I suggest that you may have to do some radical surgery, ie pull out or crack out out the existing TFL mount and replace it with perhaps one from Southern River RC Boats see http://southriverrcboats.com/shop/pa...G2&shop_param=

I recently purchased a Neu 1527 to run in a ML Boatworks hydro and realized that the Neu 1527 is long and HEAVY motor and it will need support at both ends. Finding the right mount is difficult, especially with the larger motors like Neu 1527 or TP 4060 series, others on this forum may be able to point to alternative motor mount suppliers. Good luck with the Ariane CF version. I also have it on my 'to buy list' to run with 6S.

[tlandauer]

Tlandauer,
Thank you. Excellent idea. I want as large a cooler as I can get. The bracket looks perfect.

thanks again,

Varooom

You are welcome!
In any case, enjoy, l have a Neu 1515 in my MeanMachine, love the motor! I think you are going to have a great time!
Cheers!

[ray schrauwen]

You DO NOT need to make a flat spot if you buy a MBP flex collet HERE
They are about $40 but, worth the money and possibly the best and truest collet out there. Since you are running a 1500kv motor on 6S it would be a good choice to go with a high quality flex collet. They are specifically designed for motor shafts with little or NO flat spot. Check them out!

***** Important! I don't think you will be able to use that front plat on your motor mount with this collet because of the collet diameter. It is too large.

Personally I have ripped out all mounts like these from my boats because boat motors have vent holes in them for air flow. I have now gone with the CNC $9.00 motor mount from OSE. I do however have to drill 4 vent holes in them in order to get airflow. You Can NOT drill out the water cooled motor mount.

MOUNT

[properchopper]

Ops, forgot one more question. The motor shaft spins easy in my fingers. The stock 1800Kv in my Revolt is very difficult to spin the bare shaft. Is it normal for these motors to spin so easy?

Several years ago Neu went to a slightly spiral-wound stator to reduce slow-rpm cogging (I presume to accomodate heli fliers). Not to worry