Oldham coupling centre disc Ø40 — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/oldham-coupling-disc-40/ (CC BY 4.0) Basis: Xem Studio drawing Catalog version: 2026-10-20 Sizes: see table below - Ø40 × 8 disc with two 8.2 mm slots at 90°, one per face: each hub's tongue slides in one slot. dimension value diameter 40 mm slots 8.2 × 4 mm, crossed Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/oldham-coupling/ Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/oldham-coupling-disc-40/index.json API: https://xemstudio.com/api/geometry?object=oldham-coupling-disc-40