The trailer disc hub is most common styles of hubs used on boat trailers with brakes. Each disc hub comes complete with the bearings, seal, dust cap and nuts you need to safely replace the hubs on your trailer. Designed for everyday use, the LM style of bearings are usually suitable for trailers with 39mm round or 40mm square axles, while the SLM style of bearings are typically used on 45mm and selected 50mm axles. With galvanised rust protection they are perfect for boat trailers or jet ski trailers that are used in fresh or salt water.
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