tenshock brushless motors
 

Anyone have any info on these motors?

They're from china, but not exactly cheap, looking at the 3 stores I've found that sells them (all in Europe). They have 2,4 & 6 pole motors. Looks like they're used mostly in rc-boats.

I attached an edited catalog (orignal was too big).

any info on the magnet or winding quality?

6-pole inrunner sounds good!! 38-60mm sounds like good alternative for buggys.

hey florianz, your german is probably better than mine. I believe there are some reviews on rennboot.de. I'm waiting for my account to get activated....

well, I am a born Austrian, living in Hamburg, so the Germans often don't think I speak german... :lol::lol: for them it sometimes sounds like Arnold Schwarzenegger "loads of Aktschn"... his place of birth is just 15 mins. from my hometown.

that's what I've found about the motor:
http://www.rc-raceboats-world.de/for...ead.php?t=5525

Translated means....

http://dictionary.reference.com/browse/translated


Ohhhh, you probably wanted to know what that linked page was in English. :wink:

No comment :lol:

och, das denken wir nicht nur, das ist auch so:party::lol:
We don't just think, we know for a fact!

jetzt geht das wieder los...:tongue:

aber ein piefke hats in Ö. schwerer... :mdr:

gut das ich per definition kein piefke bin:rofl:
wär ja noch schöner wenn ich ein saupreiß wär:whip:

So, how 'bout them Red Sox? :whistle:

kekeke:rofl:

wieso, wo bist denn her? Olle deitsche san Piefke... :yes: ich bin dafür ein Schluchtenschei..er...

for all the curios folks, this is just that "ösi-piefke" thing,... :rules:

Minga!

wiki sacht piefke sei alles aus dem nicht süddeutschen sprachraum, selber hab ich diese sinnlose aneinanderreihung von buchstaben noch nie gesehen/gehört:lol:

ernst beiseite, meld dich falls du mal von hammbuich nache heimat fahren solltest, machste nen zwischenstopp hier in der gegend:yes:

No red sox's fans?

Not here. I prefer basic white, or maybe black if I feel like dressing up. Red simply doesn't go with anything I have... :tongue:

I've never owned a pair of red sox.

yo, wird gemacht! :smile:

Piefke is hier die bezeichnung für eigtl. alle Deutschen, u. eher abwertend. Es gab mal ne (kritische) Fernsehserie, wo's um den tourismus-wahnsinn in dem land geht. Die "Piefke-Saga". ich weiss aber, warum ich seit 10 jahren lieber in D. als in Ö. lebe.

but that's getting really off-topic now...:tongue:

I've been reading some more about these motor's. In Germany some rc-boaters have been using them and are reporting they are 0.5-3% less efficient as comparable lehner motors and that they weigh less than the lehners .

There isn't much yet on the web about these motors, but the few reports are positive.

I don't think google translate can handle this:

Google translate worked great:

Tenshock 2220 / 8 vs. LMT 1930 / 6
Both engines cover virtually the same speed and power range and can be easily directly compare. Here the values MY TWO COPIES.

LMT: (255g, 2-Pole)
Ri: 5.1 mOhm
Io: 3.7 A (8V)
Load speed: approx 3450rpm / V at 50A

TS: (170g, 6-pole)
Ri: 5.1 mOhm
Io: 3.9 A (8V)
Load speed: approx 3400-3425rpm / V at 50A

For the load measurements, the LMT is 1% at full load and part load eta 2% more, this is the well-TS 1 / 3 lighter and has a lighter with less rotor inertia. The boat is probably the low efficiency to compensate for disadvantage.

And ... the TS costs only half of a 1930 HiAmp.

Hmm, so even with less mass of the the TS motor, it is still performing almost as good as the Lehner.

Yeah, these are sounding very nice. drkdgglr: do you have a link to the european stores that carry these motors?

uk:
http://www.astecmodels.co.uk/catalog...8baf426df4ec97
http://www.heathsrcmodels.co.uk/

germany:
http://www.hopf-modelltechnik.de/Motoren
http://xy-scripts.de/xy/index.php/ca...ab92cbcfba5671

mfr site:
http://tenshock.com/Enindex.asp

some more:

I've never understood the correlation between a motor's mass and power output. Even on the OSE site, they pitched the KB45XL motors as "having enough mass to push large boats". There just isn't any direct relationship between the two.

I suppose having a lower rotating mass that produces the same torque is better . This usually translate to better efficiency.

Tenshock is an RC boat manufacturer, it's original Chinese name "腾翔" pronouces pretty close to its English name but means"to take off and fly free". Usually boat makers manufacture only hulls, but Tenshock seems to make everything on their own. Not bad we now have more to choose from, no doubt you guys will see more and more China made motors to come, may not be as stupidly cheap as previous ones but def more worthy to every cent to spent.

because a 6-pole motor has more torque than a 4-pole, will a 6-pole motor draw less amp's than an equivalent 4-pole motor?

the 2740 motor isn't a 6 pole as stated in the catalog, but it's a 8-pole 45x60 motor...

Are the rotors wrapped with some kind of material to prevent the magnets from seperating at high rpms?

I have no idea. Here's a pic from their site of a 22 series

http://www.tenshock.com/UploadFiles/200941171957660.jpg

Doesn't look like there's any wrapping.

here's another, don't know which motor this is:
http://i798.photobucket.com/albums/y...h_tenshock.jpg

more motors:

http://i798.photobucket.com/albums/y...hockmotors.jpg

No wrapping, bleh.

Maybe lincpimp could wrap these in kevlar like he did with that hacker motor a while back...

I've been speaking with Tenshock for a while now and they told me they had no plans for a car motor. I guess I was wrong. I was supposed to get some samples but they never sent them out. Their design looks good and the only problem is the price which seems to be up there for an Asian company.

They showed me a pic of a car motor in a losi 8ight. I might be getting one just to see how they hold up.
Have you heard anything about these motors lutach?

Other then giving Tenshock a lot of information and waiting for a sample....They say the rotor design doesn't need to be wrapped with anything. I showed Echo Chen a few pictures of failed rotors, but I don't know if they made it that way.

Here is the last e-mail I got from Tenshock:

Hi,Luciano,

Ok. Noted.
I will send you three motors first for you testing.I will inform you the tracking no. when i send the motors.
But have to point out again, those are for boats. Not good for car use.

In the beginning of Apirl we will have two long motors. One is 40mm the other is 57mm.
We make those for our customer for Helicopter use.

I will ask my engineer to make a sample as you require in the end of this month.



wishes,

Echo
2008-03-19
TenShock

So they basically used some of the information I sent them and again I got nothing in return. Good thing I know a few other motor manufacturers that can make motors to my standards at a good price.

That doesn't make sense cos several car motors are already listed in their 2009 catalog. see the link at #1 post.