A rail wheel assembly is disclosed herein that is configured to operate on rail networks with multiple railway track gauges. In various embodiments, the dual gauge rail wheel assembly may comprise an axle extension component that is affixed to an axle of a railway vehicle and configured to receive a sliding wheel. The axle extension component may comprise sets of holes or slots located at different positions and corresponding to different railway track gauges. The sliding wheel may be configured to slide axially on the axle extension component between the different sets of holes or slots on the axle extension component. When holes or slots on the sliding wheel and the axle extension component are aligned, locking pins or a locking key may be inserted into the aligned holes or slots to secure the sliding wheel in a position corresponding with a particular railway track gauge.

Described herein is an axle shaft transport retention spacer for use in an axle assembly of a vehicle. In one embodiment, the axle shaft transport retention spacer comprises a first portion and a second portion configured to be selectively coupled to each other, and a center bore that extends through the first portion and the second portion and that is configured to circumferentially surround an axle shaft.

Described herein is an axle shaft transport retention spacer for use in an axle assembly of a vehicle. In one embodiment, the axle shaft transport retention spacer comprises a first portion and a second portion configured to be selectively coupled to each other, and a center bore that extends through the first portion and the second portion and that is configured to circumferentially surround an axle shaft.

An emergency trailer wheel assembly for temporarily replacing a trailer wheel includes a frame member with a mounting bracket attached on a first end of the frame member and configured for attaching to a leaf spring of a trailer and a wheel rotatably attached to a second end of the frame member.

An emergency trailer wheel assembly for temporarily replacing a trailer wheel includes a frame member with a mounting bracket attached on a first end of the frame member and configured for attaching to a leaf spring of a trailer and a wheel rotatably attached to a second end of the frame member.