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).
how to replace wheel bearings on 2004 GMC envoy?
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Front wheel bearings on a 4 wheel drive Explorer are not serviceable, replace them.
In order to replace a wheel bearing, the tire must first be removed on a Volvo v50. The wheel cowling can be removed exposing the bearings. After taking the bearings out, clean the housing and repack the bearings.
I recently did this for my 2004. I found it was cheaper to replace the entire wheel hub then to buy the bearings. The bonus is the new wheel hub comes with the bearings already to go.
The year, make and front or rear wheel bearings info would help.
Wheel bearings? 4X4 ? 4X2?
When you can hear them, usually.
As often as they wear out!
You can't replace just the wheel bearings. You have to replace the whole hub assembly. Costs about 200 bucks per wheel at a repair shop. I have had both of mine replaced.