KOYO angular contact ball bearings
| Boundary dimensions
(mm) |
r1Â 1)Â min. |
Basic load ratings (kN)
Single row         Matched pair Cr                   C0r                   Cr                   C0r |
Fatigue load limit (kN) Cu
(Single row)   (Matched pair) |
Single row |
Bearing No.
Back-to-back             Face-to-face DB                                                                        DF |
(Refer.)
Mass Single row (kg) |
|||||||||
| d        D        B         C | r
min. |
||||||||||||||
| 190 | 269.5 | 33 | — | 2 | SP | 183 | 177 | 297 | 354 | 6.05 | 12.1 | AC382733B | AC382733BDB                              AC382733BDF | 6.00 | |
| 290 | 46 | — | 2.1 | 1.1 | 271 | 268 | 441 | 535 | 9.35 | 18.7 | 7038 | 7038DB                                                          7038DF | 10.8 | ||
| 290 | 46 | — | 2.1 | 1.1 | 243 | 241 | 395 | 483 | 8.15 | 16.3 | 7038B | 7038BDB                                                    7038BDF | 10.8 | ||
| 340 | 55 | — | 4 | 1.5 | 379 | 390 | 616 | 779 | 12.4 | 24.7 | 7238 | 7238DB                                                          7238DF | 18.8 | ||
| 340 | 55 | — | 4 | 1.5 | 341 | 353 | 555 | 706 | 11.2 | 22.4 | 7238B | 7238BDB                                                    7238BDF | 18.8 | ||
| 400 | 78 | — | 5 | 2 | 514 | 548 | 835 | 1 100 | 16.5 | 33.0 | 7338B | 7338BDB                                                    7338BDF | 45.5 | ||
| 200 | 279.5 | 38 | — | 2.1 | 1.1 | 201 | 194 | 326 | 388 | 6.45 | 12.9 | AC4028B | AC4028BDB                                        AC4028BDF | 6.90 | |
| 280 | 38 | — | 2.1 | 1.1 | 231 | 231 | 376 | 463 | 7.70 | 15.4 | 7940 | 7940DB                                                          7940DF | 7.00 | ||
| 280 | 38 | — | 2.1 | 1.1 | 201 | 194 | 326 | 388 | 6.45 | 12.9 | 7940B | 7940BDB                                                    7940BDF | 7.00 | ||
| 289.5 | 38 | — | 2.1 | 1.1 | 214 | 211 | 348 | 421 | 6.95 | 13.9 | AC4029B | AC4029BDB                                        AC4029BDF | 8.1 | ||
| 310 | 46 | — | 3 | 1.1 | 274 | 274 | 445 | 547 | 8.85 | 17.7 | AC403146B | AC402146BDB                              AC403146BDF | 13.1 | ||
| 310 | 51 | — | 2.1 | 1.1 | 304 | 309 | 495 | 618 | 10.0 | 20.0 | 7040 | 7040DB                                                          7040DF | 12.7 | ||
| 310 | 51 | — | 2.1 | 1.1 | 273 | 279 | 443 | 558 | 9.05 | 18.1 | 7040B | 7040BDB                                                    7040BDF | 12.7 | ||
| 360 | 58 | — | 4 | 1.5 | 405 | 423 | 658 | 847 | 13.1 | 26.2 | 7240 | 7240DB                                                          7240DF | 22.4 | ||
| 360 | 58 | — | 4 | 1.5 | 365 | 384 | 593 | 768 | 11.9 | 23.7 | 7240B | 7240BDB                                                    7240BDF | 22.4 | ||
| 420 | 80 | — | 5 | 2 | 593 | 658 | 964 | 1 320 | 19.3 | 38.6 | 7340 | 7340DB                                                          7340DF | 52.0 | ||
| 420 | 80 | 5 | 2 | 541 | 602 | 878 | 1Â 200 | 17.7 | 35.3 | 7340B | 7340BDBÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7340BDF | 52.0 | |||
| 210 | 299.5 | 38 | — | 2.1 | 1.1 | 261 | 268 | 425 | 536 | 8.65 | 17.3 | AC4230 | AC4230DB                                              AC4230DF | 8.60 | |
| 220 | 300
309.5Â 319.5 340 340 400 460 |
35
38 46 56 56 65 88.5 |
38
— —
— — —
— |
2.1
2.1 2.1 3 3 4 5 |
1.1
1.1 1.1 1.1 1.1 1.5 2 |
200
223 265 334 299 469 678 |
203
227 281 353 318 515 795 |
324
361 431 543 486 762 1Â 100 |
405
454 562 705 636 1Â 030 1Â 590 |
6.50
7.20 8.85 10.9 9.80 15.1 22.3 |
13.0
14.4 17.7 21.8 19.6 30.2 44.6 |
AC4430B
AC443138B AC443246B 7044 7044B 7244 AC4446 |
AC4430BDB
AC443138BDBÂ Â AC443246BDB 7044DB 7044BDB 7244DB AC4446DB |
AC443138BDFÂ Â AC443246BDF 7044DF 7044BDF 7244DF AC4446DF |
7.4
8.90Â 12.0 18.5 18.9 35.2 37.5 |
| 230 | 320 | 40 | — | 2.1 | 1.1 | 226 | 235 | 368 | 471 | 7.35 | 14.7 | AC4632B | AC4632BDB                                        AC4632BDF | 9.6 | |
| 339.5 | 45 | — | 3 | 1.1 | 284 | 310 | 461 | 619 | 9.45 | 18.9 | AC4634B | AC4634BDB                                        AC4634BDF | 13.9 | ||
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