# Raboesch M5 stern tube with ball bearing, shaft 290 mm (rb301-08)

> What are the dimensions of the Raboesch M5 ball-bearing shaft 290 mm?

- Category: RC boats › Props and drive hardware
- Kind: Modern device
- Basis: Secondary source: Lindinger (Raboesch distributor) (copy of the maker's figures; the maker publishes none directly)
- Page: https://xemstudio.com/objects/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/ · JSON: https://xemstudio.com/api/geometry?object=raboesch-shaft-m5-ball-bearing-290mm-rb301-08 · Plain text: https://xemstudio.com/objects/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's 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 | 8 | 290 |

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

## Notes

- A Raboesch ball-bearing stern tube for larger scale boats. The file models the Ø8 × 240 mm tube on a Ø5 × 290 mm shaft.
- Figures are from Lindinger (Krick/Raboesch distributor), using Raboesch's lettered drawing dimensions.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

## Sizes

| dimension | value |
|---|---|
| Tube length (A) | max 240 mm |
| Tube diameter (C) | 8 mm |
| Shaft diameter (D) | 5 mm |
| Shaft length (B) | max 290 mm |
| Propeller thread (E) | M5 |
| Bearings | ball bearing motor side, Delrin bush prop side |
| Manufacturer no. | rb301-08 |

## Where the files are

- Lindinger (Raboesch distributor): [RABOESCH Shaft M5 ball bearing lg 290mm](https://lindinger.at/en/CARS-BOATS/ACCESSORIES/Boat-Accessories/Drive-Shafts/RABOESCH-Shaft-M5-ball-bearing-lg-290mm/9790052) — web — Publisher's page; dimensions are facts

## Free STEP/STL (2 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/index.json

- raboesch-shaft-m5-ball-bearing-290mm-rb301-08-tube-envelope: [STEP](https://xemstudio.com/files/hardware/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/raboesch-shaft-m5-ball-bearing-290mm-rb301-08-tube-envelope.step) · [STL](https://xemstudio.com/files/hardware/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/raboesch-shaft-m5-ball-bearing-290mm-rb301-08-tube-envelope.stl) — Stern tube Ø8 × 240 mm outside envelope (bore not published)
- raboesch-shaft-m5-ball-bearing-290mm-rb301-08-shaft: [STEP](https://xemstudio.com/files/hardware/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/raboesch-shaft-m5-ball-bearing-290mm-rb301-08-shaft.step) · [STL](https://xemstudio.com/files/hardware/raboesch-shaft-m5-ball-bearing-290mm-rb301-08/raboesch-shaft-m5-ball-bearing-290mm-rb301-08-shaft.stl) — Shaft Ø5 × 290 mm (prop thread not modelled; overhang split not published)

## Questions

**What prop thread does the Raboesch rb301-08 have?**

M5, on a 5 mm shaft.

## Fits with

- [Romarin stern tube 90 mm with M4 shaft × 130 mm (ro1441)](https://xemstudio.com/objects/romarin-stern-tube-90mm-m4-ro1441/)
- [Romarin stern tube 175 mm with M4 shaft × 223 mm (ro1442)](https://xemstudio.com/objects/romarin-stern-tube-175mm-m4-ro1442/)
- [Romarin stern tube 235 mm with M4 shaft × 300 mm (ro1444)](https://xemstudio.com/objects/romarin-stern-tube-235mm-m4-ro1444/)
- [Raboesch series 154 brass propeller, 2-blade 30 mm, left, M4 (rb154-02a)](https://xemstudio.com/objects/raboesch-154-2-blade-30mm-m4-prop-rb154-02a/)