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Mangle-wheel pinion, 9 teeth, for Ø4 pins on R40 (cut for both sides of the pin row)
What shape are the teeth of a mangle pinion? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Also called: mangle pinion, pin gear pinion, piñón de mangle, Mangelritzel
Exact dimensions. True size, with no printing tolerance added.
- length
- 28.18 mm
- width
- 28.53 mm
- height
- 8.0 mm
Notes
- 8 mm pinion, pitch radius 12 mm (9 teeth to the wheel's 30 pin positions), Ø6 bore. Its tooth spaces are the envelope of the Ø4 pins as it rolls both outside the pin circle (centres 52 mm apart) and inside it (28 mm), so it clears the pins in either mesh.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).
Mangle-wheel pinion, 9 teeth, for Ø4 pins on R40 size chart
| dimension | value |
|---|---|
| teeth | 9 |
| pitch radius | 12 mm |
| tip Ø | 28.6 mm |
| bore | Ø6 |
| thickness | 8 mm |
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. 36: 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=mangle-pinion-9t-for-pins-r40

Fits with
Questions
What shape are the teeth of a mangle pinion?
8 mm pinion, pitch radius 12 mm (9 teeth to the wheel's 30 pin positions), Ø6 bore. Its tooth spaces are the envelope of the Ø4 pins as it rolls both outside the pin circle (centres 52 mm apart) and inside it (28 mm), so it clears the pins in either mesh.
