Dimension table · DIN 5412
Cylindrical roller bearings series N3
All 23 sizes from d 20 to 150 mm bore: principal dimensions d × D × B, dynamic and static load ratings (C, C₀), limiting speed and mass — plus the executions and brands available from us (168 products).
| Designation | d (mm) | D (mm) | B (mm) | C (kN) | C₀ (kN) | n lim (rpm) | m (kg) | Executions | Offers |
|---|---|---|---|---|---|---|---|---|---|
| N304 | 20 | 52 | 15 | 35,5 | 26,0 | 18000 | 0,144 | Offen | 4 |
| N305 | 25 | 62 | 17 | 46,5 | 36,5 | 15000 | 0,230 | Offen | 6 |
| N306 | 30 | 72 | 19 | 58,5 | 48,0 | 12000 | 0,374 | Offen | 9 |
| N307 | 35 | 80 | 21 | 75,0 | 63,0 | 11000 | 0,462 | Offen | 8 |
| N308 | 40 | 90 | 23 | 93,0 | 78,0 | 9500 | 0,650 | Offen | 9 |
| N309 | 45 | 100 | 25 | 112,0 | 100,0 | 8500 | 0,786 | Offen | 8 |
| N310 | 50 | 110 | 27 | 127,0 | 112,0 | 8000 | 1,310 | Offen | 7 |
| N311 | 55 | 120 | 29 | 156,0 | 143,0 | 7000 | 1,680 | Offen | 5 |
| N312 | 60 | 130 | 31 | 173,0 | 160,0 | 6700 | 1,780 | Offen | 10 |
| N313 | 65 | 140 | 33 | 212,0 | 196,0 | 6000 | 2,610 | Offen | 10 |
| N314 | 70 | 150 | 35 | 236,0 | 228,0 | 5600 | 2,650 | Offen | 10 |
| N315 | 75 | 160 | 37 | 280,0 | 265,0 | 5300 | 3,670 | Offen | 12 |
| N316 | 80 | 170 | 39 | 300,0 | 290,0 | 5000 | 3,830 | Offen | 7 |
| N317 | 85 | 180 | 41 | 340,0 | 335,0 | 4800 | 5,330 | Offen | 8 |
| N318 | 90 | 190 | 43 | 365,0 | 360,0 | 4500 | 5,314 | Offen | 7 |
| N319 | 95 | 200 | 45 | 390,0 | 390,0 | 4300 | 7,200 | Offen | 11 |
| N320 | 100 | 215 | 47 | 450,0 | 440,0 | 3800 | 7,531 | Offen | 11 |
| N321 | 105 | 225 | 49 | 500,0 | 500,0 | 3800 | 9,620 | Offen | 3 |
| N322 | 110 | 240 | 50 | 530,0 | 540,0 | 3400 | 10,200 | Offen | 9 |
| N324 | 120 | 260 | 55 | 610,0 | 620,0 | 3200 | 13,160 | Offen | 3 |
| N326 | 130 | 280 | 58 | 720,0 | 750,0 | 3000 | 18,600 | Offen | 3 |
| N328 | 140 | 300 | 62 | – | – | – | 22,900 | Offen | 4 |
| N330 | 150 | 320 | 65 | – | – | – | 27,300 | Offen | 4 |
Load ratings (C, C0), limiting speed and mass are catalogue values of the open steel standard execution — sizes without a verified catalogue value show "–". Contact seals (RS/2RS) reduce the limiting speed; stainless and ceramic executions differ. All data without guarantee.