# Tapered roller bearing

302 and 303 series, bore 15 to 50 mm, as an envelope for assemblies: one solid d × D × T (T is the overall width). Axis along Z, centred
on the origin. Rollers, cage and the separate cone and cup 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>, PDF pages 165 to 167.

| Number | d | D | T | B | C |
|---|---|---|---|---|---|
| 30203 | 17 | 40 | 13.25 | 12 | 11 |
| 30204 | 20 | 47 | 15.25 | 14 | 12 |
| 30205 | 25 | 52 | 16.25 | 15 | 13 |
| 30206 | 30 | 62 | 17.25 | 16 | 14 |
| 30207 | 35 | 72 | 18.25 | 17 | 15 |
| 30208 | 40 | 80 | 19.75 | 18 | 16 |
| 30209 | 45 | 85 | 20.75 | 19 | 16 |
| 30210 | 50 | 90 | 21.75 | 20 | 17 |
| 30302 | 15 | 42 | 14.25 | 13 | 11 |
| 30303 | 17 | 47 | 15.25 | 14 | 12 |
| 30304 | 20 | 52 | 16.25 | 16 | 13 |
| 30305 | 25 | 62 | 18.25 | 17 | 15 |
| 30306 | 30 | 72 | 20.75 | 19 | 16 |
| 30307 | 35 | 80 | 22.75 | 21 | 18 |
| 30308 | 40 | 90 | 25.25 | 23 | 20 |
| 30309 | 45 | 100 | 27.25 | 25 | 22 |
| 30310 | 50 | 110 | 29.25 | 27 | 23 |

Maker names identify the source; this part isn't made by or affiliated with any maker.