Getting sick of blowing cheap servo gears!
 

Hey guys! I can't even tell you how many servo gears I have gone thru on my ERevo. I have it set up for single steering and use the Traxxas 2075 servos BECAUSE they are cheap and waterproof. BUT, every time I run my truck, I blow the gears. I think it's because of the absolute butt ripping power my truck has, combined with Badlands. I think the speed of the truck and grip of the tires is what's doing it.

SO... rather than having to keep replacing $4 gears, I think I'm going to just get a better servo. My concern is... should i go back to a dual steering servo set up or stick with the single?

BRO swears by these cheap servos on Ebay... so I think I might give one a try when they are back in stock.

I wonder if the HiTech 5625 or 645M's would be sufficient if running just one?

I can also buy my buddy's Ko Propo PDS-2368 servo for cheap. But I still can't help but think that even a $150 servo isn't that much more bulletproof then the $20 servo's Bro abuses daily!

Either way... I need a better servo, but I don't want to break the bank, nor do I want to keep blowing servos! My ERBE is down all the time because of it!

Thanks!

Forget those - Invest in a good one... Hitec 7955 or 7950 and don't worry about it again..

^ Ed Zachary.

Get a good all metal geared servo like the ones above or a jr9100t and forget about it. A single plastic geared servo will not last in a MT. You'll also notice alot better steering than even dual 2075's or 645M's. Besides like a radio it's an investment, my jr9000t has been in 4 different MT's over the years. Like my radio, I won't get rid of it till it's dead.

My reasoning behind using the Traxxas 2075 was based on my never usually blowing gears in them in my other trucks. But this truck eats them for lunch, almost immediately. I figured at $3 a gear set, that's like 23 times I can fix it before I've spent the money on a good servo. And I never expected to ever hit that mark! But in this truck... it'll happen if I don't do something now. My radios are all nice, my trucks are all top notch, motors, esc's, lipos.. etc... But I'll damned if I'll spend more than $50 on a servo to turn the thing! LOL! Ok ok... it's time!

My buddy is going to sell me is Kyosho servo for $60. It was used like once, and is nearly a $200 servo. So why not?

Man, that KO servo is nice and all... but I don't know much about servos to be honest. Those Hitec's have about twice as much torque, with the same speed. It makes my stomach churn just thinking about sending that kind of jack on a servo though. Ugh. I can barely stomach spending $60 on that KO servo, but I will. However, I won't if you think it's a bad idea.

I'm sure the JR and Hitec's mention are the bomb though, and worth every penny. But still!

I have run a single jr9100t and a pair of futaba 3050 servos. All are metal gear. The pair of 3050 servos did very well, I was impressed. I had to fool around a bit to get all of the linkages adjusted correctly, but it worked great in the end. The 9100t was faster and stronger, but also cost twice what a pair of 3050s do...

I have several ACE servos and they are holding up very well. Cheaper than the high-price brands and well-built: http://www.acehobby.com/ace/digital_srv.htm

agreed

my HS 7955TG was worth every penny

im was very torn spending $100 on a servo but it has lasted me 2 years and the gears still look new, i used to buy afew $30-$40 servos a year before i got the TG

Would a Hitec 985MG be too underpowered for a single steering setup? It has metal gears. My crappy 2075 was fine, but the tires, low COG, and power of my ERBE put too much strain on the gears. I realize the others have more torque, and are twice as much. But a lotta guys run them. Heck, BRO has gotten tons of life out of his $20 Ebay MG servo!

when i comes down to it i think the servo really "makes" the car or truck. I run the $$$ high speed servo in all my cars. (.o6 -.07 speed) and honestly i cant drive a car with a slow servo, it looks like i have delayed reaction time and then i drive with a fast servo and im spot on....

after i switched to top notch servos a couple years ago ill never run another car without a good servo.

buy a Jr 91000t, a Hitec 7955, ACE 1015 or 1313

if you dont think it is completely worth the money you can always sell it. but trust us youll love a stout servo.

Heck, i even run a 7955TG in my RCM converted TEN-T.:yes:

agreed, most people have to learn that the hard way,they get a real servo and they will never go back, just like buying highend lipos

I like Hitec so much that I run their servos on all my truck (either 7955TG or the older 5955TG). Their warranty and service is second to none. I stripped the titanium output gear on one of my servos and when I called them to ask if they sell the part separately, they said no but offered me to shipped it to them so they can replace it. I told them I didn't have the receipt anymore and don't even know when I both it but they still went out of their way to replace my bad servo.

That made me a customer for life.

look no further:

http://hobbycity.com/hobbyking/store..._10kg_/_.16sec

i have a few of these and they are great. i went through a couple servos in my crt truggy until i put one of those in it. they may not be the fastest or strongest, but they are rock solid and have more power and similar speed as the stock e-revo servos.

When I had my emaxx 3905 I stripped a few stock servo gears and went with dual mg995's, never had a problem after that. The link to ebay wasn't cheap either, I got 4 delivered for AU$30.

Now I use a hitec 7955 in the rc8t and I really like and prefer the single servo setup, it's much less hassle.

I had been happy with the Traxxas dual servo setup until I put a 7955 in my Truggy. What a difference!!! Tower also sells a rebadged 7955 for about $85 I think

I have a Hitec hsr 5990tg im trying to sell. PM me if your intrested.

titanium gear, water/dust proof
6v .17 333oz
7.4v .14 416oz

Large scale rc now have the 7955TG on sale for $84.99.
http://www.largescalerc.com/hs-7955t...7x078x145.aspx

You could always try the Turnigy HV767. It's Turnigy's run at the high-end servo market. So far I have been very impressed with mine. Although that Hitec for $85 looks pretty darn good too, and you'll have the benefit of US service and support.

+1 for 7955tg great servo 100 bucks cant go wrong im happy and mine was nearly 200 (rip off lhs)

Wow, the Hitec 5990tg is a robot servo that rotates 180 degrees rather than 75. You would have to really watch your end point settings huh?

j

Wow, you know what's cool about that site?? Is that I went to high school with the guy that helps run that company! They are only like 90min from my house. I plan on going up there this summer to check out their track. I've never driven on a track, and I'd love to try it. I've heard that it's not easy at first. Not as easy as you'd think it would be.

thanks for the heads up on that price!

Boy... those look at lot like the ones that Bro suggested I try cuz they are cheap and have lasted him a long time time. I guess once you factor in the shipping and wait, $18 isn't so bad.

Have a look:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=230463157954

Also, something I don't understand is the voltage of 4.8 vs 6.0. I realize that in a nitro truck you'd be feeding the servo a 6V battery pack. But what about for BL vehicles? Am I still only concerned w/ the 6v data or neither? Speed and torque are what you want to look at right?

You would need to run an external BEC to get 6V or higher. The Mamba Max Pro has an adjustable internal BEC that can be set at up to 7V, but most other ESCs are fixed at 5V.

Whoa sweetheart, I didn't say I swear by those. I said I've bought a pair a couple years ago and they still work fine for what they are and they might be a worthy investment for you since your such a cheap bastard ?

If your serious about a higher end servo let me know which one and I'll see what I can do about getting you one through the shop, mm-K ?

Anything JR would be my personal choice but I own several Hitecs that are bad to the bone also.

From what I remember most ESC's internal BEC top out at 5 volts so a happy medium if you will for the servos ratings would be close guesstimate.

I push 6.5v thru all of the servos I run with the castle bec, makes them real peppy! The 9100t servo in a e revo with that ccbec set for 6.5v could turn the truck when i held the front wheels with my feet.

Come on BRO... don't lie. You started a Facebook Fan site for those servos, got a servo mural tattoo on your back, and installed them in yer Jeep cuz you love them so much!

Ok, "swears by", and "suggested".. whatever! I know that you love you some quality servos, and have impeccable taste. But all I needed to hear was "these worked fine for me and have lasted" combined with the price... and I was sold.

So, wait... you guys who run the Castle BEC... are you using them with your Brushless veh's? or just yer Nitro? Linc said "ERevo", so that pretty much pinpoints it. I've seen a lot of BL conversion pix, and I rarely if ever have seen a BEC in the mix. If it's one of those, "Vast improvement" things, I'll get one cuz they are cheap. But if it's really not all that big of a deal, I'll pass.

Thanks!

"You had me at 'hell no'."

Come BRO... don't lie. You started a Facebook Fan site for those servos, got a servo mural tattoo on your back, and installed them in yer Jeep cuz you love them so much!

DOH ! Busted :rofl:

If you were to purchase a high end servo, running a external BEC really wouldn't be nessasary, you'll have more than enough power and torque with the juice it would get via the ESC.

Of course, if you do run a external BEC you'll gain more power and speed due to using a full 6.0 volts or more if you choose. Crawlers would gain with this, nomal bashing you may or may not even notice ? Keeping the set up simple is usually best for most.

For a nitro vehicle if you wanted to run a 7.4v servo you can just use a 2s lipo receiver pack, since on a nitro you need a receiver pack anyway. On an electric you already have the main battery as a voltage source, so it makes the moist sense to use a BEC to step the voltage down to a level that servos can handle. Technically I guess you could use a 2s lipo receiver pack on an electric, but it really wouldn't make any sense to do so.

Many people are fine with just using a servo at the 5v that their internal BEC on the ESC provides, but if you want to run HV servos at 7.4v you'll need an external BEC. Another advantage is that external BECs are for the most part capable of handling more current, so you can feed these new HV high torque servos the current they want.

Gotcha. So then, for these nicer servos, it's best to then use a BEC? But for the cheapy Traxxas 2075's I had been using, it's not needed?

Yeah that's basically it. The one other main reason for using an external BEC would be if you want to run more cells than the ESC's internal BEC can handle (people used to do this to run 4s on the Mamba Max), but that's a separate issue from running one to get higher voltage for servos.

another vote for the 9100t. I have one in the e-revo, and a pair of 9100s in a e-lst. They toss both trucks around like a rag doll. Very fast, center perfect, have been very pleased.