In this instructable ill show you how to replace your skateboard bearings.
Step 1: Loosen the Bolt
Use a spanner or wench, the right size to loosen and take off the bolt.
Step 2: Takin Out the Bearings
Lift the wheel slightly on the truck and lean it at an angle so the truck is under the top bearing and push down and it will pop off. Turn the wheel round and do the same thing using the axle to push the bearing off.
Step 3: Putting in New Bearings
Place the bearings on the trucks and put the wheel on top then push down to click the bearings into the wheel. Turn the wheel round and do the same with the other bearing.
Step 4: Tighten the Bolt
Tighten the bolt back up and enjoy your new bearings!