roller bearing

How do ball bearings reduce friction in machinery?
I can’t even understand what the hell this question is saying…

1        Antifrictional balls or rollers are made of hard, highly polished steel. Typical bearings consist of two hardened steel rings (called races), the hardened steel balls or rollers, and a separator. The motion occurs between the race surfaces and . . . → Read More: How do ball bearings reduce friction in machinery?

Is it possible for me to put bearings and seals in a 6.5 turbo?
I have a 1994 chevy pu . It has a gm-3 turbo on it and i have been told that i could fix it myself and then was told no you can not. Does anyone know? Do they sale a kit?

1      . . . → Read More: Is it possible for me to put bearings and seals in a 6.5 turbo?

I drive a 98 montero sport. Put new tires on but still have road noise? How do I get rid of it? Bearings?
I keep hearing road noise. Put on new tires. Was told to repack the bearings. Will this cut down the noise in the cab? Please let me know.

1        Maybe the tread on . . . → Read More: I drive a 98 montero sport. Put new tires on but still have road noise? How do I get rid of it? Bearings?

I seriously need a step by step layout please lol. thanks. 10 points. its . . . → Read More: how to clean bearings with rubbing alcohol?