How to Change Skateboard Bearings

Remove Old Bearing
1

Gather the proper tools. A skate key will work, but you can substitute a basic screwdriver and wrench.
2

Remove the wheels with your skate key. If you have shields installed, you must remove those as well. Keep your spacers, if you are using them, to use with the new bearings.
3

Apply pressure with the skate axle to pop the bearings off. You can also use a screwdriver or a skate key that includes a removal nub, but the easiest way is to slowly pry the bearing out with the axle. Make sure only the tip of the axle is inside the bearing and it is not touching the wheel.
4

Pry the bearing out carefully if you want to save the part. If you are throwing your bearings out, then you can apply more pressure, which may cause damage. Just be careful not to hurt the wheels.
5

Repeat prying each bearing out with the axle until all eight bearings have been removed.
    Install New Bearings
1

Set the bearings into the wheel. Some bearings have a colored shield on one side, which can be placed facing outward, but is not required. The fit should be tight, but start by simply placing the bearings in the wheel without applying too much pressure.
2

Press evenly on the outside metal rim of the bearing until it pushes into the wheel. It should end up flush with the wheel. Avoid pushing on the shield or center of the bearing while you change the parts.
3

Add a spacer between the bearings if you are using them. A spacer keeps the bearings at the proper distance.
4

Set all eight bearings into place one at a time until your skateboard wheels are complete. Then attach the wheels to the board.
5

Tighten the nut that holds the wheels on until it stops. You want to push the bearings into the wheel completely, but do not want to force the nut, which may break the bearings.
6

Loosen the nuts just a little so the wheel has room to roll freely. From the tightest point, you should loosen the nuts about one-quarter to one-half of a turn.

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Tips & Warnings

    Try cleaning and greasing your bearings before you replace them. Sometimes this helps your skateboard roll more freely again.

    Removing the bearing improperly may damage your wheel. Most skate shops will remove your bearings for free, which takes the pressure off of you.

How to Replace Wheel Bearings on a Boat Trailer

    Packing Wheel Bearings
        1

        Remove the dust cap. It may need to be pried off. Take out the cotter key. Then remove the nut and washer that hold the bearing cone. Take off the nut and washer to the auto bearing cone and pull the hub out. The outer bearings will fall out; collect them and place them aside. Remove the axle seal and discard it. Remove the inner bearings and place them in a location separate from the outer bearings.
        2

        Clean each part and inspect them for signs of damage or wear. Replace parts that are worn or have damage from excessive heat. Pack the marine grease into the bearing, forcing in as much grease as you can. The grease keeps air out of the system. It is critical that marine grease be used as it has water-resistant properties.
        3

        Place the inner bearing back in the wheel hub. Install a new seal and use the gasket sealer. Place the tire and hub back on the spindle, but do not damage the new seal. Insert the outer bearing and attach using the washer and nut. Line the nut with the hole in the axle and install a new cotter pin. Replace the dust cap. Fill the hub with marine grease, using a grease gun.

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How to Remove Car Wheel Bearings

In these clips we're going to talk about the proper way to repack, grease, and adjust your vehicle's wheel bearing. In this clip we're going to talk about the proper way to remove the vehicle's wheel bearings. Depending on the make and model you may have a hub assembly. On this one we have what they call tapered roller bearings. To get the outward bearing out, no problem at all. Take and place your hand about so and pop the rotor. You can see the bearing has slipped out. Take and remove it just like so. The inboard bearing is a different story. There's a dozen different tricks for removal of the inboard bearing. What I have found that works the best is to reinstall the nut. I know it doesn't make sense, but right now I'll show you. To reinstall the nut you have to put on a couple threads. Your going to slide the rotor off its seat and your going to use a sliding motion. What I've done is reinstalled the nut back onto the spindle. What I'm going to do is use the sliding motion with the rotor. I'm going to use both hands and pop it this way. What that'll do it strike the outboard edge of the inboard bearing and actually pop it out and remove the grease seal. Slide it off it's seat and give it a whack. The bearing seats inside here, this is called the inner race and the seal hammers down right on top of it. That's what keeps it in. Take and remove that guy right there. Set it on top of our other bearing. Spin our nut off. That?s the proper way to remove our vehicle's wheel bearings.