# Cylindrical roller bearing

Nu2 and nu3 series, bore 10 to 50 mm, as an envelope for assemblies: one solid with the boundary dimensions. Axis along Z,
centred on the origin. Rolling elements, cage and the gaps between the rings aren't modelled.

## Source

NTN, *Ball and Roller Bearings*, CAT. No. 2203-3/E (2024), <https://www.ntnglobal.com/en/products/catalog/pdf/2203E.pdf>, pp. B-71 to B-72 (PDF pages 147 and 148). ISO 15 sets the boundary dimensions of these series.

| Number | d | D | B |
|---|---|---|---|
| NU204 | 20 | 47 | 14 |
| NU205 | 25 | 52 | 15 |
| NU206 | 30 | 62 | 16 |
| NU207 | 35 | 72 | 17 |
| NU208 | 40 | 80 | 18 |
| NU209 | 45 | 85 | 19 |
| NU210 | 50 | 90 | 20 |
| NU304 | 20 | 52 | 15 |
| NU305 | 25 | 62 | 17 |
| NU306 | 30 | 72 | 19 |
| NU307 | 35 | 80 | 21 |
| NU308 | 40 | 90 | 23 |
| NU309 | 45 | 100 | 25 |
| NU310 | 50 | 110 | 27 |

No tolerance class is stated here yet. Maker names identify the source; this part isn't made by or affiliated with any maker.