Waved wheel on an upright shaft lifting and lowering a bar — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/waved-wheel-reciprocating-bar-mechanism/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design following Brown No. 165 (1868)
Catalog version: 2026-10-20

Sizes: see table below
- The upper face of a wheel on an upright shaft rises and falls in waves round its circumference. A bar standing on it through a roller is lifted by each crest and lowered by each hollow as the wheel turns: two waves give two strokes per turn, with the motion of the wave's shape (here a sine).
- Ø60 wheel, face z = 14 + 4 sin 2θ (8 mm stroke, two per turn); a 623 bearing on a radial pin under an 8 × 8 bar rests on it, drawn on a crest. The bar's guide is not drawn.
- Brown's No. 165 (waved wheel on an upright shaft giving a rising and falling motion to a bar).
- Parts (each has its own page): waved-face-wheel-60-2-waves-a4-bore8, waved-wheel-follower-bar-8x8-roller-pin, ball-bearings-metric, dowel-pins-metric, linear-shafts-h6.
- Brown's movement No. 165 (1868) shows it; this model is a Xem Studio design following his figure, every part at true size.

parameter  value
wheel  Ø60, 2 waves
stroke  8 mm
strokes per turn  2
roller  623 bearing, radial axis

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. 165: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_165.html

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/waved-wheel-reciprocating-bar-mechanism/index.json
API: https://xemstudio.com/api/geometry?object=waved-wheel-reciprocating-bar-mechanism