# Band 16 × 1.5 for the R50 segment and two Ø40 pulleys (drawn as a loop)

> How long is the band?

- 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/band-16x1-5-segment-r50-two-pulleys-40/ · JSON: https://xemstudio.com/api/geometry?object=band-16x1-5-segment-r50-two-pulleys-40 · Plain text: https://xemstudio.com/objects/band-16x1-5-segment-r50-two-pulleys-40/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 |
|---|---|---|
| 113.0 | 183.0 | 16.0 |

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

## Notes

- 16 × 1.5 mm band, 510.14 mm along its inner face, fixed at the two ends of the segment's rim and run under two Ø40 pulleys 70 mm apart, 110 mm below the pivot; it wraps 174.83° of the segment and 92.59° of each pulley.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| width × thickness | 16 × 1.5 mm |
| length | 510.14 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. 6: figure, his text and an animation](https://507movements.com/mm_006.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/segment-lever-band-pulleys-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/band-16x1-5-segment-r50-two-pulleys-40/index.json · license: https://xemstudio.com/files/hardware/band-16x1-5-segment-r50-two-pulleys-40/LICENSE.md

- band-16x1-5-segment-r50-two-pulleys-40: [STEP](https://xemstudio.com/files/hardware/band-16x1-5-segment-r50-two-pulleys-40/band-16x1-5-segment-r50-two-pulleys-40.step) · [STL](https://xemstudio.com/files/hardware/band-16x1-5-segment-r50-two-pulleys-40/band-16x1-5-segment-r50-two-pulleys-40.stl) — band, z 2..18

## Questions

**How long is the band?**

16 × 1.5 mm band, 510.14 mm along its inner face, fixed at the two ends of the segment's rim and run under two Ø40 pulleys 70 mm apart, 110 mm below the pivot; it wraps 174.83° of the segment and 92.59° of each pulley.

## Fits with

- [Rocking segment and band turning two pulleys to and fro](https://xemstudio.com/objects/segment-lever-band-pulleys-mechanism/)