Lehner Motors
 

Hi,

I've got 3 questions about Lehner Motors. Well the following:
- How do Lehner Motors perform? Do they perform better than Plettenberg and NEU's?
- Where can I buy Lehner Motors? I prefer the cheapest of course, so it doesn't matter if it's in the US or Europe or somewhere else..
- Lehner's site says that the 19-series are the best for 1:8 cars. But on youtube, the most 1:8's I see with Lehner have got a 22-series motor. So, what is the best for 1:8, a 19-series or 22-series?


Thanks,

Patrick

A 19 series is best really, a 22 series are very big motors, and would have enough torque to reverse the earth's rotation.

I've seen 1930's been used in MT's, very quick spooling motor, expect 1500watts from that unit. But 1940, 1950's are more often used for 1:8 and MT's.

Sry, i never answered your question fully...

How do they perform? Well from what I have seen in the past is that they are the best 2 pole motor out there. They are easily up there with Neu's. If I remember correctly they might even be more powerful on a power density front. (Watts/g motor mass)

Wouldnt argue with that.

The only thing about Lehners sometimes is the odd shaft sizes they use on certain models, but so far as quality and power, they are amongst the best on my side of the pond. :yes:

IIRC, I saw graphs on their website, some setups were producing 95% peak efficiency, Neu's I think are around 92% peak efficiency... every percent higher makes a big difference as far as heat/temps is concerned. Don't quote me on that though.

For 1/8, a 1950/xx would be perfect. For one, they have a 5mm shaft. The other 19xx are 4mm or 1/8". IMO the Lehner motors are better quality than Neu. The rotors are not wrapped, yet I have never heard of one self-destructing, nor coming loose from the shaft. They have LOADS of torque compared to any other 2 pole motor, and probably some cheaper 4 pole motors. I have a 1940/7 in my Rusty on 6s. Wayyyyy overkill, I'm going to try it in my Ofna GTP one of these days...

I have seen the lehner segmented magnets crack and come of the shaft. For high rpm use they need to be kevlar wrapped...

I have some experience with the lehner motors and feel that the 4 pole neu is better designed for heavier vehicles.

^^ If anyone has seen them break, I figured you would. How many have you owned over the years???

Monster Mike I think (I think) tried out a 1930 in a maxx truck and said it was sick fast. Or Serum said this maybe?

Serum had the 1930/8 in a Revo

I use a 1930/8 in my 1/8th scale buggy, very fast spool up on that motor. I also use a 1940/7 in it as well for more speed (1930 will get a bit hot if geared up too much). I also have a little Lehner in my M18T.

They are the most powerful motor per pound. I think they may be slightly better than Neu's and far above Pletts (I don't like Pletts much). Finedesign is the only place in the US to get them. You can also order them direct from Lehner (expensive). If they were more readily available in the US, I would probably run them in everything.

I have heard the lehner motor compare to Medusa motors. Some people really like them and some people don't. The 2-pole design has it's advantages and disadvantages.

There aren't really any definitive advantages or disadvantages to either. Although, 4-pole motor might have better efficiency down low.

Well, I always thought the 4 pole would have more torque, but the 2 pole would "spool up faster". I think a 2-pole motor can withstand/is more efficient at higher rpms then a 4 pole motor. I'm sure there are other arguments too.

There may be advantages/disadvantages, but they may be very subtle and not even a factor nowadays. It kinda seems like sensored vs sensorless...

When I ran a Lehner in my CRT.5, it did great and had awesome power... until it self destructed. And now, I have no way of getting it warrantied since Lehner is in Germany. So I have an expensive Lehner motor just sitting here collecting dust...

Ive had a magnet break on a Lehner too.

Great motors IMO, but still too expensive. Get yourself a Neu.or maybe even 2 for the price of a Lehner.

Price combined with non existent service makes them not even a reasonable choice IMO.