andrewdoherty

iTrader: (49)

I've heard racers discuss replacing the standard bearings in brushless motors with high performance bearings. What tricks do y'all have to remove the bearings? I have a mod motor that needs a bearing or bearings replaced, but I'm hesitant to just start banging on the bearings to get them out. Do you need a torch? Or will a heat gun do? Are there different procedures for different motors?

mok

iTrader: (9)

My only experience doing this was the bearings almost fell out of the motor without any real effort on my part. I was replacing the bearings in an LRP 3.5T with ceramics and both bearings came out with just a little pressure.

PitNamedGordie

iTrader: (8)

Did you see any performance gain?

andrewdoherty

iTrader: (49)

Just to avoid anyone who feels the need to flame (not you PNGordie, but just in case) I am replacing the bearings because I can hear the ones in the motor squealing and this is after I tried oiling them. I can feel the rotor dragging . . .

RCSteve93

iTrader: (11)

On my Hacker 17.5 the bearings just fell out with a little tap. The tolerance on the parts is very loose. I am not sure about others. If the bearing is already bad, just put a screwdriver on the inner race and just bang it out. On good bearings you should never touch the inner race.

Jeff Cuffs

iTrader: (2)

Use the muchmore bearing removal tool, works great.

mok

iTrader: (9)

the motor did sound smoother but i was not convinced any performance gain came from it.. it might have brought temps down a little on the motor side of things, but it didnt give me that extra lap i was looking for

rezenclowd3

iTrader: (17)

I wouldn't worry so much as a performance gain, but a bad bearing grenading on you while racing. I can imagine that would damage the motor...

andrewdoherty

iTrader: (49)

http://www3.towerhobbies.com/cgi-bin...?&I=LXVFW2&P=7

That was easy.

Anyone else have any experience with this little guy?

ta_man

iTrader: (168)

If you are working on a Novak motor they don't recommend replacing the bearings because they are glued in the aluminum endbell. I found the way around that was to put pressure on the bearing with the bearing removal tool (like the one noted above) and then with the bearing tool held in a vise, heat the endbell with a heat gun. The aluminum expands more than the steel bearing and when the glue bond breaks you can hear a "pop" and the bearing comes out easily the rest of the way.

andrewdoherty

iTrader: (49)

Sweet. Thats exactly the kind of information and experience I was looking for. Thanks y'all.

John Stranahan

iTrader: (27)

Here is a tool by Hyperdrive to remove and install the bearing. I tried it it; works great. No heating neccesary.

http://www.lefthander-rc.com/catalog...oducts_id=1378

When reinstalling the bearing I use a high temp red Loctite to glue the bearing back in. Motors sometimes get too hot for the standard grade of red loctite.
john

Marcos.J

iTrader: (239)

with the Speedpassion motors I use the eraser side of a no.2 pencil, works great!!