Bearing upgrade on a leopard 3674

[jkr]

Hello.
Which bearings are the best upgrade for a motor 40000 rpm+?

[JIM MARCUM]

Ceramic bearings are the best you can buy for a boat. They may be hard to find in the size you need, but once they are put in they will NEVER rust & should last a lifetime - in boat years - if lubricated properly. JIM

[Alexgar]

PeoPle will say boca but I use standard bearing from vxb bearings for a buck a piece and order a dozen for less than a set of bocas

[jkr]

Yes ceramic.
I'm thinking for those

http://www.acerracing.com/ball_bearings/5x11x5mm_Ceramic_Ball_Bearing-1172-11.html

but is it better with oil or grase lube?

[JIM MARCUM]

JKR: When you pay $160-$250 for a big brushless motor I don't think $12(+-) each is too much to pay. I don't have a clue about to lubricating them with or if they even need lube. Anybody out there know? JIM

[jkr]

Jim: the price was $69 but my problem is other.
I want to buy two good bearrings and i don't know which!