Flanged flat-belt pulley Ø80, 16 mm face, Ø8 bore — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/flanged-flat-pulley-80/  (CC BY 4.0)
Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Catalog version: 2026-10-20

Overall (mm): length 86.0, width 86.0, height 20.0
- Ø80 × 16 mm straight face between two Ø86 × 2 flanges (20 wide overall), Ø8 bore: carries a 16 mm flat belt.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

dimension  value
face  Ø80 × 16 mm
flanges  Ø86 × 2
bore  Ø8

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala
- 507movements.com: Brown's movement No. 1: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_001.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/belt-and-pulleys-mechanism/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/flanged-flat-pulley-80/index.json
API: https://xemstudio.com/api/geometry?object=flanged-flat-pulley-80