Is it the general consensus that the HiTec 7950 is the way to go?

[Hatersauce]

I am just starting out and I thought I would use some spare electronics I had laying around and just upgrade eventually, but then I realized I would probably do it sooner rather than later. I plan to order a Tekin Fxr and 35THD, and was looking at the Servos, as that's the only spare thing I don't have and would have to get it anyway. It is a lot of torque, most likely more than I would ever need, but the people on this forum, from what I have read, recommend it over most others. The 7954, I think, has less torque though still a pretty good amount of it, and I can get it for $50 less. It's probably all I would need, but I don't want it to break on me, either.

[Charlie-III]

For HiTec, my son & I run:
7955 (1.9 comp rigs)
7950 (2.2 comp rigs)

We used to use the 7954, but had some issues and decided the 7950 was the way to go. I also see more issues from other users with the 7954 than the 7950.

Using one brand allows less spare for servo arms, although our GHRacing arms have not failed yet.

I agree the price vs. performance of the 7954 looks good, but I would suggest the 7950 instead.

[Calderwood]

The 7954 doesn't have titanium gears...

[Olle P]

I use the 7954. Used to run it straight off 2S LiPo with no problems, and then when I went to use 4S LiPo I re-installed my 6V BEC and the servo works just fine with that too.
It's definitely strong enough for my needs, even at 6.0V, but I can't tell much about the longevity yet.

[WValtakis2]

Originally Posted by nigels_world

The 7954 doesn't have titanium gears...

 Titanium gears are NOT stronger than steel, only lighter.

 

~Chip

[Calderwood]

Originally Posted by WValtakis2

 Titanium gears are NOT stronger than steel, only lighter. ~Chip

Right, Lmao. Hitec uses ti gears on their most powerful servos because they are lighter.

[Dostradamas]

Originally Posted by nigels_world

Right, Lmao. Hitec uses ti gears on their most powerful servos because they are lighter.

Its true.
Titanium is not stronger than steel its lighter.
Titanium was developed for aerospace not servos.
LA class subs have 12" thick Ti hulls.
Its also non magnetic.

[winnerone23]

IMO, a hitec servo is the only way to go!
I have ti geared in all my rigs.. cs-170, 7955, 7950, 7980's.. 7950 in my 1.9 and 7980's in my 2.2 rigs.. the cs-170 and 7955 are the same 333oz servo. They are in my class 2 and wraith..
The cs-170 has been in a number of diff rigs over the last year an a half and I bought it used then! (Its a rebranded hitec) the rest have all been bought used as well.. (just a little thought as to how good a hitec servo is)
I feel the 7950 is the number 1 all around servo, hands down and second to none!!!

Buy it, you won't regret it.. :thumbup::cool:

Edit: I have also seen the fails of a 7954.. weather it just happen to be what it is or was. Not sure if the gears are cut diff or what but I have seen them strip as well..maybe cause they are stronger? Makes them brittle? (Snap easier)
Im not knocking it in any way! I have one nip sitting here and have yet found the need to put it in.. I have seen them fail tho..

[Meatwad]

Pure ti is fairly soft, however certain alloyed ti can be much harder than steel variants and also lighter. But hitec will probably never divulge what type of ti they use.

[65BAJA]

I have read a few posts lately about people having problems with 7954's. I have one in my Wraith (new install), and one in my Dingo (6 months old). I haven't had any problems with either one. If I do I will probably go with a 7980 as a replacement though.

[Dostradamas]

Anyone tried the new 83 series from hitec?
HS-8380TH Servo

[k7zpj]

I have used the 7954 @ 7.4V for about 2 years in my SCX10 without any issues.

I also have a 7950 in my Wraith which died on me after a couple of months. Hitec replaced it under warranty and the replacement hasn't had any issues.

If you are running a heavier rig, brushless, or if you drive your rig real hard then I would say definitely 7950. Otherwise, you can buy 7954 and use the $50 difference for another upgrade.

[Calderwood]

Originally Posted by Dostradamas

Its true.
Titanium is not stronger than steel its lighter.
Titanium was developed for aerospace not servos.
LA class subs have 12" thick Ti hulls.
Its also non magnetic.

Both of you guys are missing the point. I understand the differences between titanium and steel. I will not accept that hitec uses titanium because It's lighter. If this were the case wouldn't hitec say just that instead of referring to strength. I have never seen hitec advertise their "light weight gear sets".

Both of you say that steel is stronger. Gears often fail when teeth are broken off the gear. Since titanium is softer it resists breaking the teeth off. One prime example of this lays in the 1:1 automotive world. "race" ring and pinion gears are softer than "street" r&p gears.

If you want you can keep telling me about how great steel geared servos are. I'll stick with what I know and understand. ;)

[chris78cj7]

What about one of these..

Futaba S.Bus BLS172HV Ultra Torque 7.4V Brushless Servo



Specifications

ManufacturerFutaba S.Bus
ApplicationsHeli/Airplanes
TypeBrushless Ultra Torque
Torque 6V-
Torque 7.4V514 oz/in (11.8 kg/cm)
Speed 6V-
Speed 7.4V0.11 sec/60 degrees
Dimensions41mm x 38.4mm x 21mm
Weight74g
BearingsDual Ball Bearing
Gear TypeMetal/Nylon


From my Galaxy S4

[winnerone23]

Originally Posted by chris78cj7

What about one of these..

Futaba S.Bus BLS172HV Ultra Torque 7.4V Brushless Servo



Specifications

ManufacturerFutaba S.Bus
ApplicationsHeli/Airplanes
TypeBrushless Ultra Torque
Torque 6V-
Torque 7.4V514 oz/in (11.8 kg/cm)
Speed 6V-
Speed 7.4V0.11 sec/60 degrees
Dimensions41mm x 38.4mm x 21mm
Weight74g
BearingsDual Ball Bearing
Gear TypeMetal/Nylon


From my Galaxy S4

Way more expensive with not much more torque. Mize well get a 7980 with 100 oz more torque and less money..

[Charlie-III]

Regarding the 7980, while it's a nice servo it is also NOT a standard sized servo. Some rigs can adjust their servo mounts easily, others are a tight fit with a standard servo (7955, 7950, etc.) and would be a major PITA with a 7980.

[KRAWL]

I run the 7950 @6v and still have 403 oz. of torque in my 2.2 shafty crawler and the Wraith. Been messing with RCs for about 20 years and come to the conclusion that Hitec is the best for me and the 7950 is the holy grail.

[winnerone23]

Originally Posted by Charlie-III

Regarding the 7980, while it's a nice servo it is also NOT a standard sized servo. Some rigs can adjust their servo mounts easily, others are a tight fit with a standard servo (7955, 7950, etc.) and would be a major PITA with a 7980.

??? Which rigs? My XR and ax have one.. scx has room for one as would my wraith but I switched to a dinky "s" mount. It needs bout 1mm clearanced for the 7980 to fit.

Back to topic, 7950 is the way to go!

[Calderwood]

Originally Posted by winnerone23

??? Which rigs? My XR and ax have one.. scx has room for one as would my wraith but I switched to a dinky "s" mount. It needs bout 1mm clearanced for the 7980 to fit.

Back to topic, 7950 is the way to go!

I was thinking the same thing. What rig would be a "major pita"?

[winnerone23]

Mrc rtr?

Cause my 1.9 with the rcBros servo/link plate would take a 7980.. hmmm..

EDIT: I got it.. losi micro!

Now I'm just picking charlie.. see you Sunday(I hope I can make it)