Quick UK servos wheels don't fit?

[N518LF]

Just got a new set of Quick UK Servo wheels. I ordered a set for my JR 8717 servos and the package does indicate (JR) but the wheels don't seem to fit. I would have to push very hard to even get them to start going on the servo and even then I don't think they will fit.

Recommendations? Seems pretty simple but am I doing something wrong?

[salessa]

I just checked my newly arrived DS8917HV and Quick UK servo arms (labeled JR/Spektrum) and it doesn't fit either. Tried to force it but only moved it half way in!!!

[N518LF]

Okay, I figured it out. Apparanetly the tolerances are very small and with the anodization, it makes it difficult. I used a really good hobby knife and scraped some of the anodization away on the inside of the splines of the servo wheels. At that point I could at least tell of the spines were lined up when I started to put the wheel on the servo. I then used a C-clap and a couple of small piece of wood (to protect the servo and wheel) to "press" the wheel into place. Worked like a charm.

Of course I thought I had the wheel exactly where I wanted it so I didn't care if I could get the wheel off until I realized I had messed up!. Using a very large screw driving I was able to leverage the wheel off. After that, the wheel snapped on my hand so in the future I don't expect an issue removing or replacing.

[rctazz]

I usually have to use an allen screw to force them onto the splines then a puller to pull them off. Repeat a couple of times and they go on a little easier from then on.

[McKrackin]

Originally Posted by rctazz

I usually have to use an allen screw to force them onto the splines then a puller to pull them off. Repeat a couple of times and they go on a little easier from then on.

Ditto...very tight fit.
I have 8717s too.

[salessa]

So am I to undestand that forcing the horns onto the servo will not hurt the servo or gears?

So how long did it take to clean out the horns?

I was expecting a quality product for what i paid

[McKrackin]

Originally Posted by salessa

So am I to undestand that forcing the horns onto the servo will not hurt the servo or gears?

So how long did it take to clean out the horns?

I was expecting a quality product for what i paid

It can't possibly hurt the gears or servo if you use a screw to pull the horn on.
It's not putting any pressure on anything but the servo pinion itself.

Same as using a pinion puller to pull off a pinion gear.

[rctazz]

Originally Posted by salessa

So am I to undestand that forcing the horns onto the servo will not hurt the servo or gears?

So how long did it take to clean out the horns?

I was expecting a quality product for what i paid

The first time on and off, cleans most of the anodization off and the second time on and off will make them go on a little bit easier. I actually like the fact that they are tight. I had a loose fitting align wheel actually loosen up the screw in one of my servos and cause a crash on my 700 when the servo wheel popped off. I have since started using longer allen bolts to hold the wheels on and I also locktite the bolt.

I used a a small 3 arm automotive gear puller and a long M3 bolt as the soft center when pulling the wheel during assembly..