# Flanged flat-belt pulley Ø40, 16 mm face, Ø8 bore

> What is a Ø40 flat belt pulley?

- 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/flanged-flat-pulley-40/ · JSON: https://xemstudio.com/api/geometry?object=flanged-flat-pulley-40 · Plain text: https://xemstudio.com/objects/flanged-flat-pulley-40/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 |
|---|---|---|
| 46.0 | 46.0 | 20.0 |

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

## Notes

- Ø40 × 16 mm straight face between two Ø46 × 2 flanges (20 wide overall), Ø8 bore: carries a 16 mm flat belt.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| face | Ø40 × 16 mm |
| flanges | Ø46 × 2 |
| bore | Ø8 |

## 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. 1: figure, his text and an animation](https://507movements.com/mm_001.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/belt-and-pulleys-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/flanged-flat-pulley-40/index.json

- flanged-flat-pulley-40: [STEP](https://xemstudio.com/files/hardware/flanged-flat-pulley-40/flanged-flat-pulley-40.step) · [STL](https://xemstudio.com/files/hardware/flanged-flat-pulley-40/flanged-flat-pulley-40.stl) — pulley, axis Z, z 0..20

## Questions

**What is a Ø40 flat belt pulley?**

Ø40 × 16 mm straight face between two Ø46 × 2 flanges (20 wide overall), Ø8 bore: carries a 16 mm flat belt.

## Fits with

- [Open flat belt and two pulleys (2 : 1)](https://xemstudio.com/objects/belt-and-pulleys-mechanism/)