assembly lube on bearing races?

[Square]

I'm changing out the inner cam bearings on my '04 TC88. I seem to recall being told many, many years ago that when installing bearings not to use lube on the outer race. Like I said seem to recall, can't say who, what, when or where but the why was to prevent the bearing race from spinning in it's hole.

What is the real scoop on this? Assembly lube on the outer race or not, before pressing them in?

[wrenchspinner3]

I always use a bit of light machine oil on the leading edge of the bearing being pressed in. Assembly lube on the needle bearings inside. Haven't had any problems to date...

[FSG]

 

Remember to wash the inside needles of the bearing as they have a protective coating on them.  Use brake clean, air dry, then work the assembly lube into the needles before pressing the bearing in.  More often than not they have a smear of assy lube still on the outside before pressing them in which is fine.

Press from the bearing numbered side so you can still read the number once the tool has been removed.

[Admiral Akbar]

I'll agree too especially for pressing in bearings.. Any lube will do and just enough to wet the surface.. I do occasionally skip cam plate bearing when I heat the plate and freeze the bearings.. They typically just drop in that way but the lightest coat of oil keeps them from cocking..

[Square]

Thanks you guys.