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SKF cylindrical roller bearings, NUP 3 series: dimensions and part numbers
The SKF NUP 3 series of cylindrical roller bearings brings together 42 part numbers in our catalogue across 20 basic sizes, from NUP 304 to NUP 328: bore (d) from 20 to 140 mm and outside diameter (D) from 52 to 300 mm. Every part number in the table links to its own page, where you can request a quote via WhatsApp or email.
NUP 3 series dimension table
| Basic designation | d | D | B | Same size | Variants |
|---|---|---|---|---|---|
| NUP 304 | 20 | 52 | 15 | 20x52x15 | |
| NUP 305 | 25 | 62 | 17 | 25x62x17 | |
| NUP 306 | 30 | 72 | 19 | 30x72x19 | |
| NUP 307 | 35 | 80 | 21 | 35x80x21 | |
| NUP 308 | 40 | 90 | 23 | 40x90x23 | |
| NUP 309 | 45 | 100 | 25 | 45x100x25 | |
| NUP 310 | 50 | 110 | 27 | 50x110x27 | |
| NUP 311 | 55 | 120 | 29 | 55x120x29 | |
| NUP 312 | 60 | 130 | 31 | 60x130x31 | |
| NUP 313 | 65 | 140 | 33 | 65x140x33 | |
| NUP 314 | 70 | 150 | 35 | 70x150x35 | |
| NUP 315 | 75 | 160 | 37 | 75x160x37 | |
| NUP 316 | 80 | 170 | 39 | 80x170x39 | |
| NUP 317 | 85 | 180 | 41 | 85x180x41 | |
| NUP 318 | 90 | 190 | 43 | 90x190x43 | |
| NUP 320 | 100 | 215 | 47 | 100x215x47 | |
| NUP 322 | 110 | 240 | 50 | 110x240x50 | |
| NUP 324 | 120 | 260 | 55 | 120x260x55 | |
| NUP 326 | 130 | 280 | 58 | 130x280x58 | |
| NUP 328 | 140 | 300 | 62 | 140x300x62 |
Every part number in this series carries a suffix after the basic designation. The most frequent SKF suffixes, with the number of sizes they appear in: ECP (16), ECJ (12), C3 (7), ECM (3), and C3VA301 (1). The suffix defines the variant (sealing, cage, internal clearance or other options): to request a quote, send us the full part number marked on the bearing, the box or the drawing.
How to read the part number: NUP 3 gives the bearing type and the dimension series; for the same bore, each series has a different outside diameter and width. What follows is the bore code: from 04 upwards, multiplying by 5 gives the bore in millimetres (in the NUP 306, 06 × 5 = 30 mm).
The table gives the boundary dimensions of each basic designation according to ISO 15, in millimetres: d is the bore, D the outside diameter and B the width. These are standardised dimensions: the same basic designation has the same dimensions in every brand.
If the part number on the bearing can no longer be read, measure the bore, the outside diameter and the width, and find the matching row: with that size and the variant you need, we will quote it.
Other SKF cylindrical roller bearings series
Which SKF NUP 3 series bearing do you need?
Send us the full part number, or the size and the variant, with the quantity: we will quote it via WhatsApp or email.