Brackets and mounts
SBR20UU Open Linear Bearing Block
- Bounding box
- 100.0 × 48.0 × 39.0 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- September 7, 2026
Download
Free to download and use. See the terms.
The prompt
SBR20UU Linear Bearing Block Generate a single editable 3D CAD part and export it as a STEP file. Part: SBR20UU open linear bearing block for use with a 20 mm supported round shaft. Units: millimetres. Nominal dimensions: Length along rail direction: 50 mm. Width: 48 mm. Overall height: approximately 39 mm. Linear shaft bore diameter: 20 mm. Four threaded top mounting holes. Mounting thread size: M6. Nominal mounting hole centre pattern: 35 mm × 35 mm. Geometry: Aluminium outer bearing housing. Open underside so the block can pass over the aluminium support of an SBR20 rail. Cylindrical internal bearing bore for a 20 mm shaft. Model realistic retaining/end features. Simplified internal bearing geometry is acceptable. Do not model individual bearing balls. The upper mounting face must be flat. Output: One STEP file. Clean solid suitable for assembly in Fusion 360. Place the origin at the centre of the 20 mm shaft bore, halfway along the bearing length.
Parameters
| Name | Value | Range |
|---|---|---|
| Length along rail | 50 mm | 30 – 80 |
| Width | 48 mm | 30 – 80 |
| Overall height | 39 mm | 30 – 60 |
| Shaft bore diameter | 20 mm | 10 – 40 |
| Shaft centre above underside | 20 mm | 8 – 30 |
| Underside slot width | 16 mm | 8 – 30 |
| Slot overlap into bore | 4 mm | 0.5 – 12 |
| M6 tap drill diameter | 5 mm | 3 – 12 |
| Blind hole depth | 8 mm | 3 – 30 |
| Hole pattern X spacing | 35 mm | 20 – 80 |
| Hole pattern Y spacing | 35 mm | 20 – 80 |
| Retaining groove depth | 1.5 mm | 0.25 – 4 |
| Retaining groove width | 1.2 mm | 0.5 – 4 |
| Groove distance from end | 3 mm | 0.5 – 12 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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