This page contains free "TE37 style 20mm Mini-Z wheels Offset 2-4mm 1to28 1to24 scale 3D print model purchase", which is a work by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 2.34 MB)