3: the axle box

The axle box comes in 3 parts: the casting, the brass, and the collar.

The casting is the main piece of the assembly:

The C-shape at the ends will receive the short and long wedges when the axle box is assembled into the frames.

The 3d view shows a recess at the top for oiling the axles. There are 2 holes that lead from this recess to the axle, but they’re not modeled yet.

The brass is the wearing surface of the axle box.

And the collar:

Here the axle box is assembled into the frame. The wedges are shown on either side of the axle box, and the pedestal cap closes the jaw at the bottom:

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