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Rocking segment lever, R50 rim × 16, Ø8 pivot, 100 mm handle
What is a rocking segment? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Also called: segment lever, rocking sector, quadrant lever, palanca de segmento, Segmenthebel
Exact dimensions. True size, with no printing tolerance added.
- length
- 100.0 mm
- width
- 110.0 mm
- height
- 23.0 mm
Notes
- A lever whose end is a circular segment of 50 mm radius (198.83° of rim, 16 mm wide for a 16 mm band) on a Ø8 pivot, with a 10 × 5 handle 100 mm long on a Ø20 boss, above the band's plane: a band fixed to the two ends of the rim and run round pulleys below turns them as the lever rocks.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).
Rocking segment lever, R50 rim × 16, Ø8 pivot, 100 mm handle size chart
| dimension | value |
|---|---|
| rim radius | 50 mm |
| rim arc | 198.83° |
| rim width | 16 mm |
| pivot | Ø8, Ø20 boss |
| handle | 10 × 5 × 100 mm, z 20..25 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Henry T. Brown (1868, public domain) | Five Hundred and Seven Mechanical Movements — scan on archive.org | web | Publisher's page; dimensions are facts |
| 507movements.com | Brown's movement No. 6: figure, his text and an animation | web | Publisher's page; dimensions are facts |
| Xem Studio | drawing | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=rocking-segment-lever-r50

Fits with
Questions
What is a rocking segment?
A lever whose end is a circular segment of 50 mm radius (198.83° of rim, 16 mm wide for a 16 mm band) on a Ø8 pivot, with a 10 × 5 handle 100 mm long on a Ø20 boss, above the band's plane: a band fixed to the two ends of the rim and run round pulleys below turns them as the lever rocks.
