Bearing filter

[simplechamp]

I don't agree with the first part nuz69. Bearings get dirt in them, regardless of if they are supposed to be shielded or sealed, especially as the bearing components wear and the gaps between rotating parts (though very tiny) get larger. Best thing to do is perform routine maintenance to clean the dirt out, and use just a tiny amount of thin oil when relubricating. The foam filter he is using definitely won't hurt.

I do agree that too much or too thick oil and grease can just gum up the bearings and keep dirt in.

[nuz69]

Then look at this, I was very preoccupied by the bearing issue too :

http://www.rc-monster.com/forum/showthread.php?t=26255

[ta_man]

I did something slightly different to protect the front bearing in my Neu 1512 in a Losi 8 (and also seal the holes).

I took a piece of 1/16th aluminum plate and (using a milling machine for exact hole placement) drilled a center hole and three more for the motor screws. The center hole was reamed to a few thou clearance on the motor shaft. One of the 3 screw holes was used to hold the plate to the motor and the other two were used for the mounting screws. Almost no dirt or dust got to the bearing or front motor holes. This requires exact hole placement and sizing to keep the shaft hole centered around the shaft.