Abstract: An axle for rotatably supporting a rotating object having a circular hole therein, such as a gear. The axle includes a shaft and an enlarged head having slits dividing the enlarged head into a plurality of sections, such as three. The enlarged head is tapered to enable pressing the rotating object thereagainst to deflect the sections inwardly, so that the rotating object passes over the enlarged head into encircling engagement with the shaft. The enlarged head is fabricated from a material sufficiently elastic to enable the three sections to be constricted to enable the rotating object to be slid past the enlarged head, and to be entrapped upon spontaneous expansion of the enlarged head when the rotating object has cleared the enlarged head.