# Hand lever, 60 mm, Ø6 hub bore

> What is this hand lever for?

- 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/hand-lever-60-bore6/ · JSON: https://xemstudio.com/api/geometry?object=hand-lever-60-bore6 · Plain text: https://xemstudio.com/objects/hand-lever-60-bore6/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 74.0 | 18.0 | 5.0 |

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

## Notes

- 5 mm lever with a Ø18 hub bored Ø6 (fixed on the 20-tooth gear's shaft) and a Ø3 hole 60 mm out for a handle or link: rocking it turns the gear to and fro.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| length (centres) | 60 mm |
| hub | Ø18, Ø6 bore |
| end hole | Ø3 |
| thickness | 5 mm |

## 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. 127: figure, his text and an animation](https://507movements.com/mm_127.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/opposed-racks-and-pinion-mechanism/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/hand-lever-60-bore6/index.json

- hand-lever-60-bore6: [STEP](https://xemstudio.com/files/hardware/hand-lever-60-bore6/hand-lever-60-bore6.step) · [STL](https://xemstudio.com/files/hardware/hand-lever-60-bore6/hand-lever-60-bore6.stl) — lever, z 0..5

## Questions

**What is this hand lever for?**

5 mm lever with a Ø18 hub bored Ø6 (fixed on the 20-tooth gear's shaft) and a Ø3 hole 60 mm out for a handle or link: rocking it turns the gear to and fro.

## Fits with

- [Pinion between two racks (opposite motion, pump drive)](https://xemstudio.com/objects/opposed-racks-and-pinion-mechanism/)