2200kv Torq motor, how do I remove the rear bearing?

Ok, my Flux is under going an overhaul to check everything and I found the front bearing on my motor to be a little gritty so im gonna go ahead and replace it. I for the life of me however cannot figure out how to get to the rear bearing on the motor. I removed the 3 tiny little screws on the back plate, but I cannot see a way to safely remove the rear motor cap without using excessive force.

Am I missing something? And where can I go to purchase some high quality bearings for the Torq motor?



Also, im gonna go head and plug up those air holes in the front bell cap with some set screws to keep the dirt out. Any problem with this?

I also recently found that my fan is starting to make growling noises. I blew it out with the air compressor so I don't have to spend $12 on a new one but I"m wondering if I could even run this MMM system without the fan?



I was also surprised to see how many little rocks and dirt got on the PCB board, is it gonna be able to last with that much dirt/grit? I also found the fan cable to be nearly cut from the edge of the pcb board so I put some electrical tape on it to hopefully save it.

[shaunjohnson]

you know...ive never opened my MMM case...nor the motor
but...you should never spin the fan over with a compressor, (this only apply the brushless fans i think) cause it causes back EMF that can fry the fan.

Originally Posted by shaunjohnson

you know...ive never opened my MMM case...nor the motor
but...you should never spin the fan over with a compressor, (this only apply the brushless fans i think) cause it causes back EMF that can fry the fan.

Unfortunately i've done that several times

I do not have a motor like that, but you should be able to take a phillips screwdriver and hand hammer the bearing out.

That bearing looks fine from here. Why mess with it?

[shaunjohnson]

it might be a press fit.
in which case, you will need to press it out, not bash preferably.

as for bearings, look up either some genuine ones or Acer bearings.

[Pdelcast]

And you can get the bearing number right off the bearing too -- can even read it in your post. :)

That is an NMB (nippon miniature bearing) 625ZZ ABEC bearing. Chrome steel, double shield.

Manufacturer's web site:

http://www.nmbtc.com/bearings/

5mm x 16mm x 5mm

And I agree - -the bearing looks fine. Doesn't look like there is any issue.

It's both press fit and glued in place.

Originally Posted by Pdelcast

And you can get the bearing number right off the bearing too -- can even read it in your post. :)

That is an NMB (nippon miniature bearing) 625ZZ ABEC bearing. Chrome steel, double shield.

Manufacturer's web site:

http://www.nmbtc.com/bearings/

5mm x 16mm x 5mm

And I agree - -the bearing looks fine. Doesn't look like there is any issue.

It's both press fit and glued in place.

Wow, no wonder I couldn't hammer that sucker out, it didn't even budge. I'd basically have to destroy the bearing to replace it then? I took it to the LHS and my main guy their said it makes a little bit of noise and some resistance but it should be ok for a bit longer.

I should probably take a movie of me spinning it and you can tell me how good or bad the bearing is.

EDIT: Heres the video, tell me what you think. And whats up with the shaft being able to move back and forth like that? Is that bad?

[YOUTUBE]6bsIeIC2BHY[/YOUTUBE]

[speedy]

You chould be able to get the bearing out if you heat it up with a heatgun ! it works great with nitro engines anyway the bearings just fall out ! But they aren't glued ofcourse

[Pdelcast]

Originally Posted by Freezebyte

Wow, no wonder I couldn't hammer that sucker out, it didn't even budge. I'd basically have to destroy the bearing to replace it then? I took it to the LHS and my main guy their said it makes a little bit of noise and some resistance but it should be ok for a bit longer.

I should probably take a movie of me spinning it and you can tell me how good or bad the bearing is.

EDIT: Heres the video, tell me what you think. And whats up with the shaft being able to move back and forth like that? Is that bad?

Well,

The bearing doesn't seem to be bad -- it will have a little resistance to turning because of the bearing shields.

And it looks like you lost the front bearing spacer -- it's not in the video. That's why the shaft moves so much.

[shaunjohnson]

i'd say you did more damage by TRYING to get it out!

you will need to heat up and press it out, if you have a hydraulic press, that would be ace!
might be able to use a large vice and some correct sized ramrods.