| Boundary dimensions(mm) | Designations | Equivalent to foreign designations(For your information) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | Fw | SKF | FAG | NSK | NTN | KOYO | TIMKEN | URB | |
| 300 | 400 | 300 | 328 | FC6080300 | 300RV4021 | 4R6014 | 60FC40300A | ||||
| 300 | 420 | 218 | 332 | FC6084218 | 60FC42218 | ||||||
| 300 | 420 | 240 | 332 | FC6084240 | 300RV4201 | 4R6027 | 60FC42240 | ||||
| 300 | 420 | 240 | 334 | FC6084240A | 4R6012/4R6017 | ||||||
| 300 | 420 | 300 | 331 | FCD6084300A | 4R6030 | 60FC42300DW | |||||
| 300 | 420 | 320 | 332 | FCD6084320 | 4R6018 | ||||||
| 300 | 430 | 240 | 338 | FC6086240 | 4R6021 | ||||||
| 300 | 460 | 270 | 344 | FC6092270 | 4R6019 | ||||||
| 300 | 460 | 350 | 341 | FCD6092350 | 517795 | ||||||
| 310 | 430 | 240 | 344.5 | FC6286240 | 310RV4301 | 4R6202 | 62FC43240 | ||||
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