# Planet carrier disc Ø52 × 5 with a Ø10 × 13 planet boss at 30 mm

> What is this carrier disc?

- Category: Hardware › Mechanism parts
- Kind: Modern device
- Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
- Page: https://xemstudio.com/objects/planet-crank-carrier-disc-52-r30-boss10/ · JSON: https://xemstudio.com/api/geometry?object=planet-crank-carrier-disc-52-r30-boss10 · Plain text: https://xemstudio.com/objects/planet-crank-carrier-disc-52-r30-boss10/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files Xem Studio Design License (free to use and sell from, not to redistribute as files: https://xemstudio.com/license/)
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 61.0 | 52.0 | 18.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Ø52 × 5 disc with a Ø10 centre hole (turns on the fixed sun's Ø10 shaft) and a Ø10 × 13 boss 30 mm out on which the planet gear turns: the 'large disc' of Brown's figure that carries a 30-tooth planet round a fixed 30-tooth sun (centre distance 30).
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| disc | Ø52 × 5 mm |
| centre hole | Ø10 |
| planet boss | Ø10 × 13 at R30 |

## Where the files are

- Henry T. Brown (1868, public domain): [Five Hundred and Seven Mechanical Movements — scan on archive.org](https://archive.org/details/fivehundredseven00browiala) — web — Publisher's page; dimensions are facts
- 507movements.com: [Brown's movement No. 142: figure, his text and an animation](https://507movements.com/mm_142.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/planetary-crank-variable-traverse-mechanism/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, Xem Studio Design License, Xem Studio)

Index: https://xemstudio.com/files/hardware/planet-crank-carrier-disc-52-r30-boss10/index.json · license: https://xemstudio.com/files/hardware/planet-crank-carrier-disc-52-r30-boss10/LICENSE.md

- planet-crank-carrier-disc-52: [STEP](https://xemstudio.com/files/hardware/planet-crank-carrier-disc-52-r30-boss10/planet-crank-carrier-disc-52.step) · [STL](https://xemstudio.com/files/hardware/planet-crank-carrier-disc-52-r30-boss10/planet-crank-carrier-disc-52.stl) — disc z −5..0, boss z 0..13 at (30, 0)

## Questions

**What is this carrier disc?**

Ø52 × 5 disc with a Ø10 centre hole (turns on the fixed sun's Ø10 shaft) and a Ø10 × 13 boss 30 mm out on which the planet gear turns: the 'large disc' of Brown's figure that carries a 30-tooth planet round a fixed 30-tooth sun (centre distance 30).

## Fits with

- [Planet-gear crank on a carrier round a fixed sun (variable traverse)](https://xemstudio.com/objects/planetary-crank-variable-traverse-mechanism/)