140 mm bore bearings
234 models with a 140 mm (5.512 in) bore across 13 bearing types, outside diameters from 175 to 300 mm. Tables are grouped by type; open a model for full specs and equivalents.
234 models 175–300 mm OD range 4 brands
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 7928 | 7900 | 140 | 190 | 24 | NTN | open | CN | 83.5 |
| 7028 | 7000 | 140 | 210 | 33 | NTN | open | CN | 133 |
| 7028-BGM | 7000 | 140 | 210 | 33 | SKF | open | CN | 114 |
| 7228 | 7200 | 140 | 250 | 42 | NTN | open | CN | 225 |
| 7228-BCBM | 7200 | 140 | 250 | 42 | SKF | open | CN | 199 |
| 7228-BM | 7200 | 140 | 250 | 42 | SKF | open | CN | 199 |
| 7228B | 7200 | 140 | 250 | 42 | NTN | open | CN | 203 |
| QJ-228-N2MA | QJ200 | 140 | 250 | 42 | SKF | open | CN | 345 |
| 7328 | 7300 | 140 | 300 | 62 | NTN | open | CN | 335 |
| 7328-BCBM | 7300 | 140 | 300 | 62 | SKF | open | CN | 302 |
| 7328B | 7300 | 140 | 300 | 62 | NTN | open | CN | 305 |
| QJ-328-N2MA | QJ300 | 140 | 300 | 62 | SKF | open | CN | 500 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| C4028-K30V | C4000 | 140 | 210 | 69 | SKF | open | CN | 750 |
| C4028-V | C4000 | 140 | 210 | 69 | SKF | open | CN | 750 |
| C4128-2CS5V-GEM9 | C4100 | 140 | 225 | 85 | SKF | 2RS | CN | 780 |
| C4128-V-VE240 | C4100 | 140 | 225 | 85 | SKF | open | CN | 780 |
| C2228 | C2200 | 140 | 250 | 68 | SKF | open | CN | 830 |
| C2228-K | C2200 | 140 | 250 | 68 | SKF | open | CN | 830 |
| C3132-K-H3132-L | carb-adapter-sleeve | 140 | 270 | 86 | SKF | open | CN | 1000 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| NCF2928-CV | NCF2900 | 140 | 190 | 30 | SKF | open | CN | 220 |
| SL182928-XL | sl1829 | 140 | 190 | 30 | FAG | open | CN | 260 |
| NN4928 | NN4900 | 140 | 190 | 50 | NTN | open | CN | 251 |
| NN4928K | NN4900 | 140 | 190 | 50 | NTN | open | CN | 251 |
| NNC4928-CV | NNC4900 | 140 | 190 | 50 | SKF | open | CN | 308 |
| NNCF4928-CV | NNCF4900 | 140 | 190 | 50 | SKF | open | CN | 308 |
| NNCL4928-CV | NNCL4900 | 140 | 190 | 50 | SKF | open | CN | 308 |
| NNU4928K | NNU4900 | 140 | 190 | 50 | NTN | open | CN | 251 |
| SL014928 | sl0149 | 140 | 190 | 50 | FAG | open | CN | 270 |
| SL024928 | sl0249 | 140 | 190 | 50 | FAG | open | CN | 270 |
| 319428-DA-2LS | NNF4900 | 140 | 200 | 80 | SKF | 2RS | CN | 468 |
| N1028 | N1000 | 140 | 210 | 33 | NTN | open | CN | 195 |
| NJ1028 | NJ1000 | 140 | 210 | 33 | NTN | open | CN | 195 |
| NU1028 | NU1000 | 140 | 210 | 33 | NTN | open | CN | 195 |
| NU1028-ML | NU1000 | 140 | 210 | 33 | SKF | open | CN | 179 |
| NUP1028 | NUP1000 | 140 | 210 | 33 | NTN | open | CN | 195 |
| NCF3028-CV | NCF3000 | 140 | 210 | 53 | SKF | open | CN | 440 |
| NN3028 | NN3000 | 140 | 210 | 53 | NTN | open | CN | 330 |
| NN3028K | NN3000 | 140 | 210 | 53 | NTN | open | CN | 330 |
| SL183028 | sl1830 | 140 | 210 | 53 | FAG | open | CN | 450 |
| NNCF5028-CV | NNCF5000 | 140 | 210 | 95 | SKF | open | CN | 809 |
| NNF5028-B-2LS | NNF5000 | 140 | 210 | 95 | SKF | 2RS | CN | 644 |
| SL185028 | sl1850 | 140 | 210 | 95 | FAG | open | CN | 770 |
| N228 | N200 | 140 | 250 | 42 | NTN | open | CN | 345 |
| NF228 | NF200 | 140 | 250 | 42 | NTN | open | CN | 345 |
| NJ228 | NJ200 | 140 | 250 | 42 | NTN | open | CN | 345 |
| NJ228-ECJ | NJ200 | 140 | 250 | 42 | SKF | open | CN | 450 |
| NJ228E | NJ200 | 140 | 250 | 42 | NTN | open | CN | 435 |
| NU228 | NU200 | 140 | 250 | 42 | NTN | open | CN | 345 |
| NU228-ECM | NU200 | 140 | 250 | 42 | SKF | open | CN | 450 |
| NU228E | NU200 | 140 | 250 | 42 | NTN | open | CN | 435 |
| NUP228 | NUP200 | 140 | 250 | 42 | NTN | open | CN | 345 |
| NUP228-ECJ | NUP200 | 140 | 250 | 42 | SKF | open | CN | 450 |
| NUP228E | NUP200 | 140 | 250 | 42 | NTN | open | CN | 435 |
| N2228 | N2200 | 140 | 250 | 68 | NTN | open | CN | 495 |
| NCF2228-ECJB | NCF2200 | 140 | 250 | 68 | SKF | open | CN | 680 |
| NCF2228-V | NCF2200 | 140 | 250 | 68 | SKF | open | CN | 693 |
| NJ2228 | NJ2200 | 140 | 250 | 68 | NTN | open | CN | 495 |
| NJ2228-ECML | NJ2200 | 140 | 250 | 68 | SKF | open | CN | 655 |
| NJ2228E | NJ2200 | 140 | 250 | 68 | NTN | open | CN | 635 |
| NU2228 | NU2200 | 140 | 250 | 68 | NTN | open | CN | 495 |
| NU2228-ECML | NU2200 | 140 | 250 | 68 | SKF | open | CN | 655 |
| NU2228E | NU2200 | 140 | 250 | 68 | NTN | open | CN | 635 |
| NUH2228-ECMH | NUH2200 | 140 | 250 | 68 | SKF | open | CN | 680 |
| NUP2228 | NUP2200 | 140 | 250 | 68 | NTN | open | CN | 495 |
| NUP2228-ECML | NUP2200 | 140 | 250 | 68 | SKF | open | CN | 655 |
| NUP2228E | NUP2200 | 140 | 250 | 68 | NTN | open | CN | 635 |
| SL182228 | sl1822 | 140 | 250 | 68 | FAG | open | CN | 720 |
| N328 | N300 | 140 | 300 | 62 | NTN | open | CN | 685 |
| NF328 | NF300 | 140 | 300 | 62 | NTN | open | CN | 685 |
| NJ328 | NJ300 | 140 | 300 | 62 | NTN | open | CN | 685 |
| NJ328-ECJ | NJ300 | 140 | 300 | 62 | SKF | open | CN | 780 |
| NJ328E | NJ300 | 140 | 300 | 62 | NTN | open | CN | 735 |
| NU328 | NU300 | 140 | 300 | 62 | NTN | open | CN | 685 |
| NU328-ECM | NU300 | 140 | 300 | 62 | SKF | open | CN | 780 |
| NU328E | NU300 | 140 | 300 | 62 | NTN | open | CN | 735 |
| NUP328 | NUP300 | 140 | 300 | 62 | NTN | open | CN | 685 |
| NUP328-ECM | NUP300 | 140 | 300 | 62 | SKF | open | CN | 780 |
| NUP328E | NUP300 | 140 | 300 | 62 | NTN | open | CN | 735 |
| N2328 | N2300 | 140 | 300 | 102 | NTN | open | CN | 1020 |
| NCF2328-ECJB | NCF2300 | 140 | 300 | 102 | SKF | open | CN | 1250 |
| NJ2328 | NJ2300 | 140 | 300 | 102 | NTN | open | CN | 1020 |
| NJ2328-ECML | NJ2300 | 140 | 300 | 102 | SKF | open | CN | 1200 |
| NJ2328E | NJ2300 | 140 | 300 | 102 | NTN | open | CN | 1130 |
| NJG2328-VH | NJG2300 | 140 | 300 | 102 | SKF | open | CN | 1230 |
| NU2328 | NU2300 | 140 | 300 | 102 | NTN | open | CN | 1020 |
| NU2328-ECML | NU2300 | 140 | 300 | 102 | SKF | open | CN | 1200 |
| NU2328E | NU2300 | 140 | 300 | 102 | NTN | open | CN | 1130 |
| NUH2328-ECMH | NUH2300 | 140 | 300 | 102 | SKF | open | CN | 1250 |
| NUP2328 | NUP2300 | 140 | 300 | 102 | NTN | open | CN | 1020 |
| NUP2328-ECML | NUP2300 | 140 | 300 | 102 | SKF | open | CN | 1200 |
| NUP2328E | NUP2300 | 140 | 300 | 102 | NTN | open | CN | 1130 |
| SL192328-TB-XL-BR | sl1923 | 140 | 300 | 102 | FAG | open | CN | 1410 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 61828 | 61800 | 140 | 175 | 18 | SKF | open | CN | 39 |
| 61828-2RS | 61800 | 140 | 175 | 18 | SKF | 2RS | CN | 39 |
| 61828-2RS-NSK | 61800 | 140 | 175 | 18 | NSK | 2RS | CN | 42 |
| 61828-2RS-NTN | 61800 | 140 | 175 | 18 | NTN | 2RS | CN | 42.5 |
| 61828-NSK | 61800 | 140 | 175 | 18 | NSK | open | CN | 42 |
| 61828-NTN | 61800 | 140 | 175 | 18 | NTN | open | CN | 42.5 |
| 61828-RSR | 61800 | 140 | 175 | 18 | SKF | RSR | CN | 39 |
| 61828-RSR-NSK | 61800 | 140 | 175 | 18 | NSK | RSR | CN | 42 |
| 61828-ZZ | 61800 | 140 | 175 | 18 | NSK | ZZ | CN | 42 |
| 61828-ZZ-NTN | 61800 | 140 | 175 | 18 | NTN | ZZ | CN | 42.5 |
| 61928 | 61900 | 140 | 190 | 24 | SKF | open | CN | 66.3 |
| 61928-2RS | 61900 | 140 | 190 | 24 | NTN | 2RS | CN | 74 |
| 61928-MA | 61900 | 140 | 190 | 24 | SKF | open | CN | 66.3 |
| 61928-NSK | 61900 | 140 | 190 | 24 | NSK | open | CN | 73.5 |
| 61928-NTN | 61900 | 140 | 190 | 24 | NTN | open | CN | 74 |
| 61928-RSR | 61900 | 140 | 190 | 24 | NSK | RSR | CN | 73.5 |
| 61928-ZZ | 61900 | 140 | 190 | 24 | NSK | ZZ | CN | 73.5 |
| 61928-ZZ-NTN | 61900 | 140 | 190 | 24 | NTN | ZZ | CN | 74 |
| 16028 | 16000 | 140 | 210 | 22 | FAG | open | CN | 86 |
| 16028-NTN | 16000 | 140 | 210 | 22 | NTN | open | CN | 91 |
| 6028 | 6000 | 140 | 210 | 33 | SKF | open | CN | 111 |
| 6028-2RS | 6000 | 140 | 210 | 33 | SKF | 2RS | CN | 111 |
| 6028-2RS-FAG | 6000 | 140 | 210 | 33 | FAG | 2RS | CN | 117 |
| 6028-2RS-NSK | 6000 | 140 | 210 | 33 | NSK | 2RS | CN | 121 |
| 6028-2RS-NTN | 6000 | 140 | 210 | 33 | NTN | 2RS | CN | 122 |
| 6028-FAG | 6000 | 140 | 210 | 33 | FAG | open | CN | 117 |
| 6028-M | 6000 | 140 | 210 | 33 | SKF | open | CN | 111 |
| 6028-NSK | 6000 | 140 | 210 | 33 | NSK | open | CN | 121 |
| 6028-NTN | 6000 | 140 | 210 | 33 | NTN | open | CN | 122 |
| 6028-ZZ | 6000 | 140 | 210 | 33 | SKF | ZZ | CN | 111 |
| 6028-ZZ-FAG | 6000 | 140 | 210 | 33 | FAG | ZZ | CN | 117 |
| 6028-ZZ-NSK | 6000 | 140 | 210 | 33 | NSK | ZZ | CN | 121 |
| 6028-ZZ-NTN | 6000 | 140 | 210 | 33 | NTN | ZZ | CN | 122 |
| 6228 | 6200 | 140 | 250 | 42 | SKF | open | CN | 165 |
| 6228-2RS | 6200 | 140 | 250 | 42 | NSK | 2RS | CN | 183 |
| 6228-2RS-NTN | 6200 | 140 | 250 | 42 | NTN | 2RS | CN | 184 |
| 6228-FAG | 6200 | 140 | 250 | 42 | FAG | open | CN | 188 |
| 6228-MA | 6200 | 140 | 250 | 42 | SKF | open | CN | 165 |
| 6228-NSK | 6200 | 140 | 250 | 42 | NSK | open | CN | 183 |
| 6228-NTN | 6200 | 140 | 250 | 42 | NTN | open | CN | 184 |
| 6228-ZZ | 6200 | 140 | 250 | 42 | NSK | ZZ | CN | 183 |
| 6228-ZZ-NTN | 6200 | 140 | 250 | 42 | NTN | ZZ | CN | 184 |
| 6328 | 6300 | 140 | 300 | 62 | SKF | open | CN | 251 |
| 6328-M | 6300 | 140 | 300 | 62 | SKF | open | CN | 251 |
| 6328-NSK | 6300 | 140 | 300 | 62 | NSK | open | CN | 278 |
| 6328-NTN | 6300 | 140 | 300 | 62 | NTN | open | CN | 280 |
| 6328-ZZ | 6300 | 140 | 300 | 62 | NSK | ZZ | CN | 278 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| AXK140180 | AXK | 140 | 180 | 5 | SKF | open | CN | 116 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 23028 | 23000 | 140 | 210 | 53 | SKF | open | CN | 485 |
| 23028-CCK-W33 | 23000 | 140 | 210 | 53 | SKF | open | CN | 485 |
| 23028EAD1 | 23000 | 140 | 210 | 53 | NTN | open | CN | 597 |
| 23028EAKD1 | 23000 | 140 | 210 | 53 | NTN | open | CN | 597 |
| 23028EMD1 | 23000 | 140 | 210 | 53 | NTN | open | CN | 597 |
| 23028EMKD1 | 23000 | 140 | 210 | 53 | NTN | open | CN | 597 |
| 24028 | 24000 | 140 | 210 | 69 | SKF | open | CN | 600 |
| 24028-CCK30-W33 | 24000 | 140 | 210 | 69 | SKF | open | CN | 600 |
| 24028EMD1 | 24000 | 140 | 210 | 69 | NTN | open | CN | 709 |
| 24028EMK30D1 | 24000 | 140 | 210 | 69 | NTN | open | CN | 709 |
| 23128 | 23100 | 140 | 225 | 68 | SKF | open | CN | 659 |
| 23128-CCK-W33 | 23100 | 140 | 225 | 68 | SKF | open | CN | 659 |
| 23128EAD1 | 23100 | 140 | 225 | 68 | NTN | open | CN | 802 |
| 23128EAKD1 | 23100 | 140 | 225 | 68 | NTN | open | CN | 802 |
| 23128EMD1 | 23100 | 140 | 225 | 68 | NTN | open | CN | 802 |
| 23128EMKD1 | 23100 | 140 | 225 | 68 | NTN | open | CN | 802 |
| 24128 | 24100 | 140 | 225 | 85 | SKF | open | CN | 796 |
| 24128-CCK30-W33 | 24100 | 140 | 225 | 85 | SKF | open | CN | 796 |
| 24128EMD1 | 24100 | 140 | 225 | 85 | NTN | open | CN | 951 |
| 24128EMK30D1 | 24100 | 140 | 225 | 85 | NTN | open | CN | 951 |
| 22228 | 22200 | 140 | 250 | 68 | SKF | open | CN | 743 |
| 22228-CCK-W33 | 22200 | 140 | 250 | 68 | SKF | open | CN | 743 |
| 22228EAD1 | 22200 | 140 | 250 | 68 | NTN | open | CN | 912 |
| 22228EAKD1 | 22200 | 140 | 250 | 68 | NTN | open | CN | 912 |
| 22228EMD1 | 22200 | 140 | 250 | 68 | NTN | open | CN | 912 |
| 22228EMKD1 | 22200 | 140 | 250 | 68 | NTN | open | CN | 912 |
| 23228 | 23200 | 140 | 250 | 88 | SKF | open | CN | 962 |
| 23228-CCK-W33 | 23200 | 140 | 250 | 88 | SKF | open | CN | 962 |
| 23228EMD1 | 23200 | 140 | 250 | 88 | NTN | open | CN | 1140 |
| 23228EMKD1 | 23200 | 140 | 250 | 88 | NTN | open | CN | 1140 |
| 22328 | 22300 | 140 | 300 | 102 | SKF | open | CN | 1357 |
| 22328-CCK-W33 | 22300 | 140 | 300 | 102 | SKF | open | CN | 1357 |
| 22328EAD1 | 22300 | 140 | 300 | 102 | NTN | open | CN | 1540 |
| 22328EAKD1 | 22300 | 140 | 300 | 102 | NTN | open | CN | 1540 |
| 22328EMD1 | 22300 | 140 | 300 | 102 | NTN | open | CN | 1540 |
| 22328EMKD1 | 22300 | 140 | 300 | 102 | NTN | open | CN | 1540 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 32928 | 32900 | 140 | 190 | 32 | SKF | open | CN | 252 |
| 32928XU | 32900 | 140 | 190 | 32 | NTN | open | CN | 221 |
| 32928-DF | matched-df | 140 | 190 | 64 | SKF | open | CN | 432 |
| T4CB140 | T4CB | 140 | 195 | 29 | NTN | open | CN | 208 |
| 32028 | 32000 | 140 | 210 | 45 | FAG | open | CN | 400 |
| 32028-SKF | 32000 | 140 | 210 | 45 | SKF | open | CN | 404 |
| 32028XU | 32000 | 140 | 210 | 45 | NTN | open | CN | 365 |
| 323028 | 4t-432 | 140 | 210 | 53 | NTN | open | CN | 335 |
| 413028 | 4t-430 | 140 | 210 | 53 | NTN | open | CN | 291 |
| 33028U | 33000 | 140 | 210 | 56 | NTN | open | CN | 435 |
| 423028 | 4t-430 | 140 | 210 | 66 | NTN | open | CN | 335 |
| 32028X-DF | matched-df | 140 | 210 | 90 | SKF | open | CN | 692 |
| 32028T130X-DB | matched-db | 140 | 210 | 130 | SKF | open | CN | 692 |
| 323128 | 4t-432 | 140 | 225 | 68 | NTN | open | CN | 435 |
| 413128 | 4t-430 | 140 | 225 | 68 | NTN | open | CN | 410 |
| 423128 | 4t-430 | 140 | 225 | 84 | NTN | open | CN | 435 |
| 30228U | 30200 | 140 | 250 | 45.75 | NTN | open | CN | 465 |
| 32228 | 32200 | 140 | 250 | 71.75 | SKF | open | CN | 691 |
| 32228U | 32200 | 140 | 250 | 71.75 | NTN | open | CN | 675 |
| 30228-DF | matched-df | 140 | 250 | 91.5 | SKF | open | CN | 773 |
| 30228T102-DB | matched-db | 140 | 250 | 102 | SKF | open | CN | 773 |
| 430228XU | 4t-430 | 140 | 250 | 102 | NTN | open | CN | 800 |
| 30228T106-DB | matched-db | 140 | 250 | 106 | SKF | open | CN | 773 |
| 32228-DF | matched-df | 140 | 250 | 143.5 | SKF | open | CN | 1185 |
| 432228XU | 4t-432 | 140 | 250 | 153 | NTN | open | CN | 1160 |
| 32228T158-DB | matched-db | 140 | 250 | 158 | SKF | open | CN | 1185 |
| 30328 | 30300 | 140 | 300 | 67.75 | SKF | open | CN | 787 |
| 30328UUTG | 30300 | 140 | 300 | 67.75 | NTN | open | CN | 945 |
| 31328XU | 31300 | 140 | 300 | 77 | NTN | open | CN | 760 |
| 32328UTG | 32300 | 140 | 300 | 107.75 | NTN | open | CN | 1270 |
| 430328X | 4t-430 | 140 | 300 | 145 | NTN | open | CN | 1220 |
| 430328XUUTG | 4t-430 | 140 | 300 | 145 | NTN | open | CN | 1620 |
| 31328X-DF | matched-df | 140 | 300 | 154 | SKF | open | CN | 1264 |
| 31328T170X-DB | matched-db | 140 | 300 | 170 | SKF | open | CN | 1264 |
| 432328UTG | 4t-432 | 140 | 300 | 223 | NTN | open | CN | 2170 |
| Model | Series | d (mm) | D (mm) | B (mm) | Brand | Seal | Clearance | C (kN) |
|---|---|---|---|---|---|---|---|---|
| 51128 | 51100 | 140 | 180 | 31 | SKF | open | CN | 111 |
| 51128-NTN | 51100 | 140 | 180 | 31 | NTN | open | CN | 107 |
| 51228 | 51200 | 140 | 200 | 46 | SKF | open | CN | 190 |
| 51228-NTN | 51200 | 140 | 200 | 46 | NTN | open | CN | 193 |
| 53228 | 53200 | 140 | 200 | 48.6 | SKF | open | CN | 190 |
| 52232-M | 52200 | 140 | 225 | 90 | SKF | open | CN | 238 |
| 51328 | 51300 | 140 | 240 | 80 | NTN | open | CN | 350 |
| 51328-M | 51300 | 140 | 240 | 80 | SKF | open | CN | 377 |
| 51428-M | 51400 | 140 | 280 | 112 | SKF | open | CN | 520 |
Exact-dimension interchange groups at 140 mm bore
These d×D×B envelopes at a 140 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:
Selecting a 140 mm bore bearing
The bore fixes the shaft, not the bearing capacity. At 140 mm the catalog spans 175–300 mm outside diameter: the light sections suit compact housings and moderate duty, while the larger ODs use bigger rolling elements and carry substantially more load. Select first by the required dynamic load rating C for the calculated L10 life, then by available radial space.
For a rotating inner ring a m6 shaft seat with an H7 housing is the usual starting point; an interference fit plus thermal growth consumes internal clearance, so C3 is the common industrial default rather than CN. Sealed variants (-2RS, -ZZ) trade a small amount of speed for contamination protection and maintenance-free operation — compare the sealed and open versions of the same envelope before substituting one for the other.
Frequently asked questions
What bearings have a 140 mm bore?
This index lists 234 verified bearing models with a 140 mm (5.512 in) bore across 13 bearing types, from 175 to 300 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.
How do I choose between the 175–300 mm OD options for a 140 mm shaft?
On a fixed 140 mm bore, a smaller outside diameter means a lighter section for limited housing space and moderate load; a larger OD with a wider ring carries more radial and axial load and lasts longer at the same duty. Compare the C dynamic load rating in each model table, then match seal type, internal clearance (CN/C3/C4) and precision class to the actual mounting and operating temperature.
What shaft fit and bore code apply to 140 mm bearings?
A 140 mm bore on a rotating inner ring normally uses a m6 shaft seat with an H7 housing bore (verify against the catalogue for heavy or stationary-ring duty). In the ISO designation system 140 mm is bore code 28 (code × 5), so a 62-series bearing with this bore is the 6228.