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-   -   Is brushless better???? (https://www.rctech.net/forum/radio-electronics/656213-brushless-better.html)

sschultz 08-22-2012 02:19 PM

Is brushless better????
 
Am looking at servos and am curious about brushless technology. Is it way better and why? I know what brushes are but am clueless to brushless...

MarkA 08-22-2012 02:57 PM

In a word, yes. Just as with any electric motor, brushless servos should last longer while also delivering other benefits. Take a look at Futaba's synopsis of the technology for more.

stickys 08-22-2012 03:34 PM

I would argue that they are not "way" better but certainly an improvment

sschultz 08-22-2012 04:23 PM

Ok, are they worth the extra money???

Eric Tomczyk 08-22-2012 04:54 PM

Supposedly they don't wear out but I have never worn out a servo. I have one that is almost 20 years old and still works. I only run electric though, and I know nitro is harder on servos. Has anyone here worn the motor out on a servo?

Dave H 08-22-2012 04:56 PM

They are for us. My son and I have 3 Futaba BLS-451 servos that are several years old, have worked great in 1/10 buggies and stadium trucks. Solid on track response and torque, don’t overshoot, smooth and quiet not buzzy or jerky, haven’t developed any noticeable slop. I’ve never heard of one causing radio brownout, don’t seem to need glitch busters or external BECs like some others. My son tried a newer better rated servo for a while, ended up going back to the old Futaba. I’ve seen them win ROAR nats and other major races.

MarkA 08-22-2012 05:08 PM


Originally Posted by Dave H (Post 11124883)
They are for us. My son and I have 3 Futaba BLS-451 servos that are several years old, have worked great in 1/10 buggies and stadium trucks. Solid on track response and torque, don’t overshoot, smooth and quiet not buzzy or jerky, haven’t developed any noticeable slop. I’ve never heard of one causing radio brownout, don’t seem to need glitch busters or external BECs like some others. My son tried a newer better rated servo for a while, ended up going back to the old Futaba. I’ve seen them win ROAR nats and other major races.

My experience has been the same. I have two BLS451's and an AE 1015digital. The 1015 is so unsmooth by comparison that I am able to keep using it only because it's in a Losi SCTE where all the front end slop negates anything else anyway.

cs3087 08-22-2012 05:10 PM

You need a strong bec to run them I'd say no IMO they aren't worth the cash

Dave H 08-22-2012 05:12 PM


Originally Posted by Eric Tomczyk (Post 11124875)
Supposedly they don't wear out but I have never worn out a servo. I have one that is almost 20 years old and still works. I only run electric though, and I know nitro is harder on servos. Has anyone here worn the motor out on a servo?

Have many servos, several brands, over nearly 25 years, yes they work, but most have developed some slop within a couple years. Can't be positive, but my first really good ones, KO FET servos in my Vintage rides, sure don't seem nearly as fast as they used to be. New gear set would likely help the slop, but I think it would take a comm cut and new brushes to get the response back. Don't think they will fit in my lathe though! :) Also all in electrics.

Dave H 08-22-2012 05:14 PM


Originally Posted by cs3087 (Post 11124942)
You need a strong bec to run them I'd say no IMO they aren't worth the cash

Odd, that's exactly opposite my experience. Which brushless models have you tried?

WindDrake 08-22-2012 08:12 PM

Brushless Servos are the next natural upgrade point, sort of like how big of an impact Coreless Servos made when they hit the market.

They are faster, more powerful, more wear resistant, and will typically consume less power to do the job. They are just electrically more complex.

tc5 man 08-22-2012 08:20 PM

Il be honest ive been running a high voltage coreless diginal steel gear servo on my truggy and never striped one and has enough speed and plently of torque . So i dont see the need in a brushless servo and the money for them .

Eric Tomczyk 08-22-2012 09:00 PM


Originally Posted by Dave H (Post 11124950)
Have many servos, several brands, over nearly 25 years, yes they work, but most have developed some slop within a couple years. Can't be positive, but my first really good ones, KO FET servos in my Vintage rides, sure don't seem nearly as fast as they used to be. New gear set would likely help the slop, but I think it would take a comm cut and new brushes to get the response back. Don't think they will fit in my lathe though! :) Also all in electrics.

Good point Dave.

I will say that every Futaba product I have seen or owned has impressed me. I strongly recommend them.

cs3087 08-22-2012 09:18 PM


Originally Posted by Dave H (Post 11124959)
Odd, that's exactly opposite my experience. Which brushless models have you tried?

Oops sorry didn't think before I typed I thought they put a strong draw on the bec now that I think about it less resistance less draw on the bec I'd like to try one of the ones from hobbyking for what they are theyre cheap.

http://www.hobbyking.com/hobbyking/s..._0_06_56g.html

And you're right I have no experience shouldn't of posted in the first place

I already got a discount for $2 by sitting on the page LOL

Dave H 08-22-2012 10:08 PM


Originally Posted by Eric Tomczyk (Post 11125859)
Good point Dave.

I will say that every Futaba product I have seen or owned has impressed me. I strongly recommend them.

I agree, Futaba is always a solid choice, have an old Magnum Jr that still works fine. As does my old fav KO EX-1s, and Airtronics are always good radios too I think. For now we get by with early Spektrum DX3Rs, they’ve worked well for us.


Originally Posted by cs3087 (Post 11125933)
Oops sorry didn't think before I typed I thought they put a strong draw on the bec now that I think about it less resistance less draw on the bec I'd like to try one of the ones from hobbyking for what they are theyre cheap.

http://www.hobbyking.com/hobbyking/s..._0_06_56g.html

And you're right I have no experience shouldn't of posted in the first place

I already got a discount for $2 by sitting on the page LOL

Hey no problem, happens to us all. Kudos for replying. Good to see the choices expanding, hadn’t seen that one before.


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