HOW TO MEASURE BOLT PATTERN: The size of the protrusion from the center of the bolt hole to the center of the opposite bolt hole is 5.5 '', so the size of the wheel hub is 6x5.5.
PRE-ASSEMBLED AND PRE LUBRICATION: The25580,15123 bearings and 2.25" I.D. grease seals are pre-assembled and lubricated with grease. This kit includes all the necessary parts for installation, You can directly install and use.
STRONG AND ANTI-CORROSION: The hub are made of high quality material with black coating on the surface, which can effectively prevent corrosion and rust, sturdy and durable, with a long service life.
WELL PACKAGING: Trailer hubs are packaged in bubble wrap. Bearings and oil seals are pre-assembled on the hub. Other mounting accessories are packaged in white bubble wrap. All items are neatly placed in a sturdy cardboard box. Protect the product as much as possible during transportation to prevent deformation that could render it unusable.