Oldham coupling hub Ø40, 5 mm bore — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/oldham-coupling-hub-40/  (CC BY 4.0)
Basis: Xem Studio drawing
Catalog version: 2026-10-20

Sizes: see table below
- Ø40 hub with an 8 mm tongue across its face and a Ø5 bore; two hubs and a centre disc make an Oldham coupling.

dimension  value
diameter  40 mm
tongue  8 × 4 mm
bore  Ø5

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-hub-40/index.json
API: https://xemstudio.com/api/geometry?object=oldham-coupling-hub-40