alright i thought the whole purpose of a wheel bearing is to help the tire and axle spin together but i was looking at a car with no axle and i know that theres inner race and outer race.. outerrace is pressed against the knuckle and the inner is pressed into hub. no i spun the rotor annd the outer move and the inner kinda like spin 2..but i thought the outer doesn't move and the inner does.. that is the whole purpose of a wheel bearing 2 reduce friction. didn't know the bearing move as one unit..

like for example throwout bearing the outer is what the retainer on the clutch fork hold. the inner is what spin when its pushed against the springs on pressurew plate i thought bearing was one race and one race stationary but the bearing fucked up everything please help..

 

You're looking at a front wheel bearing on a Honda, but without the axle installed??

The 'bearing' is actually 2 bearings. Each bearing has an inner & outer race. The outer races are like cups, & they're actually both incorporated into the same piece of metal. The combined outer races are pressed into the knuckle, and that's the part that doesn't spin. You can see the edges of the outer race, it's the part that doesn't spin.

The bearing rollers ride around the inside of the outer race. Then the inner race is kinda like a cone. Each cone points towards the middle, towards each other. The cones have a hole in the center, for the hub & axle.

The hub is pressed into the outboard cone. Or you could say the inner race of the outboard bearing. But it's long enough to extend thru the inner race of the INBOARD bearing also.

Then the axle is installed & the axle nut is tightened. This presses the 2 inner races towards each other, tightening the bearings. NOW, when the axle spins, the inner races of both bearings spin along with it. The combined outer race of the bearings remains stationary in the knuckle.

Get it?