30 models in the 239 series, 100–710 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) | |
|---|---|---|---|---|---|
| 23920E | NACHI | 100 | 140 | 30 | — |
| 23926E | NACHI | 130 | 180 | 37 | — |
| 23928AX | NACHI | 140 | 190 | 37 | — |
| 23930R | KOYO | 150 | 210 | 45 | — |
| 23934AX | NACHI | 170 | 230 | 45 | — |
| 23936AX | NACHI | 180 | 250 | 52 | — |
| 23938AX | NACHI | 190 | 260 | 52 | — |
| 23938R | KOYO | 190 | 260 | 52 | — |
| 23940AX | NACHI | 200 | 280 | 60 | — |
| 23940R | KOYO | 200 | 280 | 60 | — |
| 23944E | NACHI | 220 | 300 | 60 | — |
| 23944R | KOYO | 220 | 300 | 60 | — |
| 23952E | NACHI | 260 | 360 | 75 | — |
| 23952R | KOYO | 260 | 360 | 75 | — |
| 23956E | NACHI | 280 | 380 | 75 | — |
| 23956R | KOYO | 280 | 380 | 75 | — |
| 23960E | NACHI | 300 | 420 | 90 | — |
| 23960R | KOYO | 300 | 420 | 90 | — |
| 23968E | NACHI | 340 | 460 | 90 | — |
| 23968R | KOYO | 340 | 460 | 90 | — |
| 23972R | KOYO | 360 | 480 | 90 | — |
| 23976E | NACHI | 380 | 520 | 106 | — |
| 23976R | KOYO | 380 | 520 | 106 | — |
| 23980E | NACHI | 400 | 540 | 106 | — |
| 23980R | KOYO | 400 | 540 | 106 | — |
| 23996E | NACHI | 480 | 650 | 128 | — |
| 23996R | KOYO | 480 | 650 | 128 | — |
| 239/500R | KOYO | 500 | 670 | 128 | — |
| 239509 FA | SKF | 660 | 820 | 440 | — |
| 239/710E | NACHI | 710 | 950 | 180 | — |
239 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 Cylindrical Roller Bearings series: NU · NJ · N · NUP · NN · FC · NNU · LSE