# Gear cluster, module 1.25: 32 T / 24 T / 16 T on one Ø14 hub, Ø8 bore

> What is a gear cluster?

- 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/gear-cluster-m1-25-32-24-16-bore8/ · JSON: https://xemstudio.com/api/geometry?object=gear-cluster-m1-25-32-24-16-bore8 · Plain text: https://xemstudio.com/objects/gear-cluster-m1-25-32-24-16-bore8/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 |
|---|---|---|
| 42.49 | 42.49 | 58.0 |

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

## Notes

- Module 1.25 spur gears of 32, 24, 16 teeth (8 mm faces at z = 16, 41, 66) joined by a Ø14 hub into one part on a Ø8 shaft, a tooth of each on +X; each meshes at 30 mm centres with the pulley-and-gear unit of the complementary size (N₁ + N₂ = 48).
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| gears | 32 T / 24 T / 16 T |
| module | 1.25 |
| hub | Ø14 |
| 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. 58: figure, his text and an animation](https://507movements.com/mm_058.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/belt-shifted-gears-three-speed-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/gear-cluster-m1-25-32-24-16-bore8/index.json · license: https://xemstudio.com/files/hardware/gear-cluster-m1-25-32-24-16-bore8/LICENSE.md

- gear-cluster-m1-25-32-24-16-bore8: [STEP](https://xemstudio.com/files/hardware/gear-cluster-m1-25-32-24-16-bore8/gear-cluster-m1-25-32-24-16-bore8.step) · [STL](https://xemstudio.com/files/hardware/gear-cluster-m1-25-32-24-16-bore8/gear-cluster-m1-25-32-24-16-bore8.stl) — cluster, axis Z

## Questions

**What is a gear cluster?**

Module 1.25 spur gears of 32, 24, 16 teeth (8 mm faces at z = 16, 41, 66) joined by a Ø14 hub into one part on a Ø8 shaft, a tooth of each on +X; each meshes at 30 mm centres with the pulley-and-gear unit of the complementary size (N₁ + N₂ = 48).

## Fits with

- [Three speeds by shifting a belt over pulleys carrying gears (16 / 24 / 32 T)](https://xemstudio.com/objects/belt-shifted-gears-three-speed-mechanism/)