Note: Railway axles are called leading and trailing from their position in the front or in the rear of a car or truck respectively.
AXLE BOX
Ax"le box`.
1. A bushing in the hub of a wheel, through which the axle passes.
2. The journal box of a rotating axle, especially a railway axle.
Note: In railway construction, the axle guard, or pedestal, with the superincumbent weight, rests on the top of the box (usually with a spring intervening), and holds it in place by flanges. The box rests upon the journal bearing and key, which intervene between the inner top of the box and the axle.
AXLED
Ax"led, a.
Defn: Having an axle; — used in composition.
Merlin's agate-axled car. T. Warton.
AXLE GUARD
Ax"le guard`.
Defn: The part of the framing of a railway car or truck, by which an axle box is held laterally, and in which it may move vertically; — also called a jaw in the United States, and a housing in England.
AXLETREE
Ax"le*tree`, n. Etym: [Cf. Icel. öxultr.]