# Hanging weight Ø40 × 40 with a pin lug (394.58 g in steel)

> What is this weight 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/hanging-weight-d40x40-lug/ · JSON: https://xemstudio.com/api/geometry?object=hanging-weight-d40x40-lug · Plain text: https://xemstudio.com/objects/hanging-weight-d40x40-lug/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 |
|---|---|---|
| 40.0 | 40.0 | 52.0 |

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

## Notes

- Ø40 × 40 mm cylinder with a 10 × 5 × 12 lug on top and a Ø3 cross hole 7 mm above the top face: hangs from a Ø3 pin (rope eye, block or slide). 394.58 g in steel (7.85 g/cm³), 136.13 g in aluminium.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| body | Ø40 × 40 mm |
| lug | 10 × 5 × 12, Ø3 hole |
| mass (steel) | 394.58 g |

## 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. 23: figure, his text and an animation](https://507movements.com/mm_023.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/weighted-belt-tightener-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/hanging-weight-d40x40-lug/index.json · license: https://xemstudio.com/files/hardware/hanging-weight-d40x40-lug/LICENSE.md

- hanging-weight-d40x40-lug: [STEP](https://xemstudio.com/files/hardware/hanging-weight-d40x40-lug/hanging-weight-d40x40-lug.step) · [STL](https://xemstudio.com/files/hardware/hanging-weight-d40x40-lug/hanging-weight-d40x40-lug.stl) — weight, axis Z, lug on top, hole along Y

## Questions

**What is this weight for?**

Ø40 × 40 mm cylinder with a 10 × 5 × 12 lug on top and a Ø3 cross hole 7 mm above the top face: hangs from a Ø3 pin (rope eye, block or slide). 394.58 g in steel (7.85 g/cm³), 136.13 g in aluminium.

## Fits with

- [Weighted belt tightener: pulley on a slide pulled by a hanging weight](https://xemstudio.com/objects/weighted-belt-tightener-mechanism/)