Rod-end yokes with a side stub pin: Ø5 tube and Ø3 rod — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tri-clamp-rd-yokes/  (CC BY 4.0)
Basis: Design values; Ø3 dowel (ISO 8734) stub pin, 623 con-rod eyes from the con-rod kit on this site
Catalog version: 2026-10-20

Sizes: see table below
- A small block on the rod end with a Ø3 dowel pressed 4.5 mm into its side: the con-rod's 623 runs on the 7.5 mm that stand out, beside the block, so the rod's axis stays free.
- The tube yoke has a Ø3.4 passage above its Ø5 socket: in the beta the Ø3 displacer rod runs up through the power piston's tube rod and out of the top of this yoke to its own rod yoke.
- Both hold their rod with an M3 grub.

part  socket_mm  pin_height_mm  height_mm  stub_pin
rd-yoke-tube5  Ø5 × 12  17.0  21.0  Ø3 × 12, 4.5 in
rd-yoke-rod3  Ø3 × 10  14.0  18.0  Ø3 × 12, 4.5 in

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/tri-clamp-rd-yokes/index.json
API: https://xemstudio.com/api/geometry?object=tri-clamp-rd-yokes