No, ball bearings are small metal balls placed inside a ring to reduce friction in rotating machinery, while wheel bearing hubs are components that house the bearings and attach the wheel to the vehicle's axle. Wheel bearing hubs contain ball bearings as part of their mechanism.
Assuming all other factors are equal, a bigger ball would have the same acceleration as a smaller ball when subject to the same force. This is because acceleration is dependent on force and mass, and in this case, the increased mass of the bigger ball would require more force to achieve the same acceleration as the smaller ball.
A metal ball and a foam ball can have the same mass but different volumes. The metal ball will be denser and therefore have a smaller volume compared to the foam ball.
It is generally easier to stop a rubber ball moving at the same speed as a wooden ball of the same size, due to the rubber ball's elasticity and ability to deform upon impact, absorbing some of the energy. The wooden ball, being more rigid, would transfer more energy upon impact, making it more difficult to stop.
You can make the bowling ball and soccer ball have the same gravitational potential energy by lifting them to the same height above the ground. Gravitational potential energy depends on the mass of the object and the height it is lifted, so as long as both balls are lifted to the same height, they will have the same gravitational potential energy.
momentum=velocity x mass say a golf ball weighs 1 pound and the bowling ball weighs 5 pounds the golf ball would have to be moving 5 times faster than the bowling ball to have the same momentum
No, the hub is the outer housing that the bearing sits in. Usually bearings have to be pressed in and out of the hub.
NO... but you can make them fit if you swap the front bearings hubs for the ones on a 2001 same body style
Not sure about Pathfinder in general, but a lot of suitcases use standard 60-70mm inline skate wheels nowadays, which all have the same, removable ball-bearings (2 per wheel). I recently got a suitcase that was missing one of the ball bearings on one wheel. I replaced it by popping-out one of the bearings from an old pair of inline skates and putting this into the malfunctioning wheel. The bearings in the case had ~5mm standoff hubs, which I approximated by adding a couple of washers to the outside of the wheel. Removing bearings is a little fiddly - I just wedged a small flathead screwdriver against the inside edge of one bearing (i.e. insert screwdriver from the opposite side of the bearing you're removing). Then braced the driver handle against a table and pushed down on the wheel to easily pop-out the bearing. It now works fairly well (Certainly better than when it arrived).
Yes the cam bearings are the same.
That depends on the initial speeds and the track configuration, etc.
Switches, hubs...
In most cases, yes.
the hubs are bad buy new ones i had the same problem
roller bearings are only needed if engine has roller bearings, u would replace bearings with same bearings that are in engine and cam specs
No.
You simply plug the second hub into the first. Modern hubs will be just peachy in the configuration.
Always replace inner and outer wheel bearings on the same wheel at the same. You don't necessarily have to replace the bearings in both wheels at the same time, though it's not a bad idea, but always inner and outer on the same wheel at the same time.