supplies blood to the anterior (front) parts of the scalp, ear, face, neck, and side of the head. Facial artery external maxillary artery supplies blood to the lower region of the face, mouth, and nose.
Axle bushing is an independent plain bearing that is inserted into a housing to provide a bearing surface for rotary applications; this is the most common form of a plain bearing.[8] Common designs include solid (sleeve and flanged), split, and clenched bushings.
i used wheels with bearings already in them. the beauty of doing it this way is, if you abuse your trailer and some how bend the all thread sticking out of each end of axle tube, you just get a new piece of all thread and replace it. axle tube doesnt have to be cut or rewelded.