I'm looking to upgrade the HS-81's in my Eco-8 to something with metal gears and with ball bearings, I was looking at the MG version of the HS-85, but I want to go with JR servo's since my radio is JR.

The problem is, JR has like a hundred micro servo's, and I can't seem to find one like I want.

Just wondering if somone can link me to (or just give me the name of) a JR servo comparable to the HS-85, it has to have ball bearings and metal gears.

Thanks,

take a look at the multiplex polo 4...i use it on the tail of my corona, together with a gy240...impressive specs and performance...not quite as solid as the gy401/9254 on my logo, but very effective...

http://www2.towerhobbies.com/cgi-bin...?&I=LXGZU9&P=7

I believe the HS81's are some of the fastest micro servos available in their size range. I was comparing them with JR servos a while back and I distinctly remember the JR ones being slower, which surprised me.

I may be wrong though. Using JR servos because you have a JR radio won't make much of a difference in anything anyways. Servos are only motors and gears, nothing more.

I'd stick with the Hitec servos if I was you, but that's just my opinion . I assume you're asking because you've stripped the nylon gears in your HS81's on crashes? It's a common problem, but metal gears strip too, and a hard crash will likely strip even the metal gears, so i'd be careful with going the metal route unless you're sure you can avoid crashing alltogether, otherwise you may only be wasting more money than you need to .

Yeah I've stripped the gears in two of the HS-81's. One got stripped in a crash, and the other was actually when I was moving the swashplate up/down by hand, guess I moved it too fast [:-]. At least the gears are cheap and easy to replace.

Even if I don't go MG, I would like to at least upgrade to Ball Bearing servos because I've noticed there seems to be quite a bit of play between the output shaft and case/bushing on my HS-81's.

I wonder if the HS-81's can be upgraded to BB? That would probably the ideal thing to do since the MG servo's apparently will strip out as well. I'm gonna open one up tonight and see if I can get a measurement on the bushing, maybe I can find some bearings that are the same size.

Me, avoid crashing? LOL

I may be wrong, but I think only the 85's come in a BB version, the 81's only come in plain or MG version.
I love my hitec servos. I've never managed to strip one amazingly, although I have quite literally toasted one when I plugged it in, looks like one of the wires had become pinched and frayed (probably because I had them mashed against the frame). Needless to say, I plugged the servo in, and the wires touched and shorted, causing some smoke to rise from the servo. Being the crafty fellow I am, I opened up the servo, re-soldered the tiny wires directly back to the servo PCB (was a pretty delicate process, trying to make sure I didn't cross solder anything, and the fact I was using a big nasty soldering tip didn't help either). But the servo held out, and currently works flawlessly to this day . I was pretty impressed as I was almost certain that little puff was a $20 bill burning infront of my eyes .

So yeah, the moral of the story is, uh, go Hitec!