# Follower bar 8 × 8 × 60 with a Ø3 cross hole for a roller pin

> What rests on the waved wheel?

- 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/waved-wheel-follower-bar-8x8-roller-pin/ · JSON: https://xemstudio.com/api/geometry?object=waved-wheel-follower-bar-8x8-roller-pin · Plain text: https://xemstudio.com/objects/waved-wheel-follower-bar-8x8-roller-pin/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 |
|---|---|---|
| 8.0 | 8.0 | 60.0 |

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

## Notes

- 8 × 8 bar standing on the wheel's face, with a Ø3 hole 4 mm above its foot for the pin of a Ø10 roller (a 623 bearing) whose axis is radial to the wheel.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| bar | 8 × 8 × 60 |
| roller pin hole | Ø3, 4 mm above the foot |

## 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. 165: figure, his text and an animation](https://507movements.com/mm_165.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/waved-wheel-reciprocating-bar-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/waved-wheel-follower-bar-8x8-roller-pin/index.json · license: https://xemstudio.com/files/hardware/waved-wheel-follower-bar-8x8-roller-pin/LICENSE.md

- waved-wheel-follower-bar-8x8-roller-pin: [STEP](https://xemstudio.com/files/hardware/waved-wheel-follower-bar-8x8-roller-pin/waved-wheel-follower-bar-8x8-roller-pin.step) · [STL](https://xemstudio.com/files/hardware/waved-wheel-follower-bar-8x8-roller-pin/waved-wheel-follower-bar-8x8-roller-pin.stl) — bar beside the roller, roller pin along X at z = 23

## Questions

**What rests on the waved wheel?**

8 × 8 bar standing on the wheel's face, with a Ø3 hole 4 mm above its foot for the pin of a Ø10 roller (a 623 bearing) whose axis is radial to the wheel.

## Fits with

- [Waved wheel on an upright shaft lifting and lowering a bar](https://xemstudio.com/objects/waved-wheel-reciprocating-bar-mechanism/)