scoobydo

iTrader: (1)

So I'm starting to get into the finer details of proper motor tuning.
I went to:
http://www.motortuningsecrets.com/tunestockmotor.html
One thing confused me, during re-assembly they say:
"Now that the motor is assembled, we need to make sure it spins very freely. If all of the steps have been followed properly, the arm should spin nearly as well as bearings..."
I have not been hardcore in motor tuning but one thing all my motors have had is the magnetic field holding the armature in place. Basically making it impossible for it to spin as freely as a bearing? or at all for that matter. I have to put some slight effort to make it spin, and even then, it turns once and locks into place again with the magnetic field?
so whats up? Am I doing something wrong or not breaking my motors in properly?
I have this with both my Monster Stock and my 19t.

THE_REAL_FROBOY

they are saying as if it was a beaRING instead of a bushing

Joe B

iTrader: (1)

Yea exactly, "not" having the motor spin like a plain ball bearing by itself....but like a motor that has bearings.....you will always have the cog effect because of the magnetic field

scoobydo

iTrader: (1)

Gotcha, I figured I just read it wrong
Dumb English language, gets me every time.
So with ball bearings, does one have to do all the 2000 grit Sanding to the shaft that they recommend, or is this mainly a bushing thing?

Joe B

iTrader: (1)

purely a bushing thing......In a bearing motor you don't want the shaft to excessivly spin in the inner race of the bearing , you want the ball bearing to do the work

Joe B

iTrader: (1)

you also don't need or want the same endplay a bushing motor needs....most bearing motors work best with very little endplay, some reputable motor builders even recomend a little preload for best performance on a bearing motor

micros_rock

The V2 motors come with small o-rings to cushion the armature right up against the bearings.

hurley081182

iTrader: (15)

u answered my question and i didnt ask it yet. was goin to ask what are some good websites.