Bearings are a serviceable part of the trailer or caravan so will probably need replacing at some time.
The first thing is to identify the bearings you have, this can be done in several ways. If you have a handbook with the trailer or caravan this might tell you, if not then maybe the manufacturer may be able to help from the chassis number. The most common way though is to remove one hub, remove the bearings and locate any numbers on the bearing which match those on our kits.
If you still have any problems please contact us, we'd be happy to help.