An axle is a central shaft for a rotating wheel or gear. It is usually made of metal and is used to support the wheel or gear and enable it to rotate freely. The crossword solutions for the term axle include AXIS (4 letters), SPINDLE (7 letters), PIVOT (5 letters), MANDREL (7 letters), ROD (3 letters), hubcaps (7 letters), BAR (3 letters), and HUB (3 letters). AXIS, SPINDLE, PIVOT, and MANDREL are all components of an axle that help to support the wheel or gear and enable it to rotate. ROD, hubcaps, BAR, and HUB are all parts of the axle that are connected to the wheel or gear.