45 models in the 523 series, 25–1080 mm bore. Every row links to the full specification page and to the cross-reference page of that model.
| Model | Brand | Bore d (mm) | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 523586 | SKF | — | |||
| 523587 | SKF | — | |||
| 52393/618 | KOYO | 157.162 | 36.116 | — | |
| 52305 | NACHI | 25 | 52 | 34 | Cross-ref → |
| 52306 | NACHI | 30 | 60 | 38 | Cross-ref → |
| 52307 | NACHI | 35 | 68 | 44 | Cross-ref → |
| 523L-0040A3 | ANDGE | 35 | 85 | — | |
| 523L-0040A7 | ANDGE | 35 | 85 | — | |
| 52308 | NACHI | 40 | 78 | 49 | Cross-ref → |
| 52309 | NACHI | 45 | 85 | 52 | Cross-ref → |
| 52310 | NACHI | 50 | 95 | 58 | Cross-ref → |
| 52311 | NACHI | 55 | 105 | 64 | Cross-ref → |
| 52314/P6 | ANDGE | 55 | 125 | 72 | — |
| 52312 | NACHI | 60 | 110 | 64 | Cross-ref → |
| 52313 | NACHI | 65 | 115 | 65 | Cross-ref → |
| 52314 | NACHI | 70 | 125 | 72 | Cross-ref → |
| 52314/P5 | ANDGE | 70 | 125 | 72 | — |
| 52315 | NACHI | 75 | 135 | 79 | Cross-ref → |
| 52316 | NACHI | 80 | 140 | 79 | Cross-ref → |
| 52317 | NACHI | 85 | 150 | 87 | Cross-ref → |
| 52320/P5 | ANDGE | 85 | 170 | 97 | — |
| 52320/P6 | ANDGE | 85 | 170 | 97 | — |
| 52318 | NACHI | 90 | 155 | 88 | Cross-ref → |
| 52375/618 | KOYO | 95.25 | 157.162 | 36.116 | — |
| 52375/52630XB | TIMKEN | 95.25 | 160.02 | 16.668 | — |
| 52375/52637-B | TIMKEN | 95.25 | 162.052 | 16.668 | — |
| 52320 | NACHI | 100 | 170 | 97 | Cross-ref → |
| 52393/52618 | NACHI | 100.013 | 157.163 | 36.513 | Cross-ref → |
| 52322 | NACHI | 110 | 190 | 110 | Cross-ref → |
| 52324 | NACHI | 120 | 210 | 123 | Cross-ref → |
| 52326 | NACHI | 130 | 225 | 130 | Cross-ref → |
| 52328 | NACHI | 140 | 240 | 140 | Cross-ref → |
| 52330 | NACHI | 150 | 250 | 140 | Cross-ref → |
| 52334 | NACHI | 160 | 270 | 153 | Cross-ref → |
| 52336 | NACHI | 180 | 300 | 165 | Cross-ref → |
| 52336 | ANDGE | 180 | 300 | 165 | Cross-ref → |
| 52338 | NACHI | 190 | 320 | 183 | Cross-ref → |
| 52340 | NACHI | 200 | 340 | 192 | Cross-ref → |
| 523826 | SKF | 425 | — | ||
| 523547 | SKF | 445 | — | ||
| 523184 | SKF | 603 | — | ||
| 523063 | SKF | 876 | — | ||
| 523154 | SKF | 937 | — | ||
| 523584 | SKF | 1013 | — | ||
| 523133 | SKF | 1080 | — |
523 series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.
Other Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697