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3t Alko Marine Bearings
3t Alko marine bearings are popular in heavier 4.5t boat trailers that accumulate a lot of highway kilometres.
Bearings of all sizes and used on caravans, campers and boat trailers absolutely require regular maintenance.
Without maintenance, hub, drums and disc rotors will fail.
Axles and bearings must fit perfectly for long life. When inspecting axle profiles look for a grease shadow under the bearing journal.
The journal should be metal and not have a grease shadow. This grease shadow is a sign of worn axle journal.
If your wheel has almost come off your trailer at any time, it is likely the axle has been damaged.
Damaged axles should always be replaced immediately.