| Boundary dimensions(mm) | Designations | Equivalent to foreign designations(For your information) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | Fw | SKF | FAG | NSK | NTN | KOYO | TIMKEN | URB | |
| 260 | / | 220 | 292 | LFC5274220 | L313823/LBC4-0110 | L507336 | L260RV3701 | L4R5217/L4R5208 | L313823 | L260RY1744 | 4NNU5152M-20 |
| 270 | 380 | 275 | 298 | FC5476275 | |||||||
| 280 | 375 | 200 | 307 | FC5675200 | |||||||
| 280 | 380 | 290 | 312 | FC5678220 | 313822/BC4-0107 | 507339B | 280RV3901 | 4R5611/4R5604 | 313822/313822D | 280RY1783 | 4NNU5156PFC3W8 |
| 280 | 390 | 275 | 312 | FCD5678275 | 314719 B | 527104 | 56FC39275J | 280RY1782 | |||
| 290 | 440 | 310 | 328 | FC5888310 | 517796 | ||||||
| 300 | 400 | 300 | 328 | FC6080300 | 300RV4021 | 4R6014 | 60FC40300A | ||||
| 300 | 420 | 300 | 334 | FC6084300A | 4R6015 | ||||||
| 300 | 460 | 350 | 341 | FCD6092350 | 517795 | ||||||
| 310 | 420 | 300 | 338 | FC6284300 | 310RV4201 | 62FC42300 | |||||
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