Escape wheel, 30 teeth, Ø50, club-free pointed teeth raked forward — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/escape-wheel-30t-d50/  (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 50.0, width 49.73, height 3.0
- Ø50 × 3 escape wheel with 30 pointed teeth 2.5 mm deep (root Ø40), the locking face of each tooth raked 3° forward so only the tip touches a pallet; Ø5 bore. It turns anticlockwise (seen from the front) under the drive weight or spring.
- Works with the dead-beat (Graham) anchor and the recoil anchor on this site: pallets span 7½ teeth with the anchor pivot 35.36 mm above the wheel centre.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

dimension  value
teeth  30
tip Ø  50 mm
root Ø  40 mm
thickness  3 mm
bore  Ø5

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. 289: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_289.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/deadbeat-escapement-mechanism/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/escape-wheel-30t-d50/index.json
API: https://xemstudio.com/api/geometry?object=escape-wheel-30t-d50