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.
Axles can be beveled or tapered with a file, axle press, or lathe. To taper with a file, clamp the axle in the chuck of a drill or drill press. Hold the file at an angle near the axle head. It is helpful to clamp the drill in a vise to hold the axle steady.