KOYO BEARING
| d | Boundary dimensions (mm) | Ew | Basic load ratings (kN) Cr C0r | Fatigue load limit (kN) Cu | Bearing No. NN NNU Cylindrical Cylindrical bore bore | De- sign |
min. | Mounting dimensions (mm) da db Da max. min. max. min. | ra max. | (Refer.) Mass (kg) Cylindrical bore | |||||||||||
| D B | r min. | ||||||||||||||||||||
| 220 | 300 370 | 80 120 | 2.1 4 | 244 263 | — | 1 | 561 110 | 1 1 | 220 950 | 145 223 | NNU4944 NNU3144 | 2 2 | 231 236 | 241 260 | 248 268 | 289 354 | — — | 2 3 | 16.7 52.5 | ||
| 240 | 320 360 400 | 80 92 128 | 2.1 3 4 | 263 286 | 330 | 1 | 588 864 270 | 1 1 2 | 340 590 290 | 155 184 257 | NN3048 — | NNU4948
NNU3148 | 2 1 2 | 251 253 256 | 260 282 | 269 291 | 309 347 384 | 333 | 2 2.5 3 | 18.0 32.8 65.3 | |
| 260 | 360 | 100 | 2.1 | 287 | 941 | 2 | 050 | 228 | NNU4952 | 2 | 271 | 284 | 296 | 349 | — | 2 | 31.4 | ||||
| 280 | 380 420 | 100 106 | 2.1 4 | 308 | 384 | 1 | 976 090 | 2 2 | 200 010 | 239 220 | NN3056 | NNU4956 — | 2 1 | 291 296 | 305 | 316 | 369 404 | 387 | 2 3 | 33.1 51.2 | |
| 300 | 420 460 | 118 118 | 3 4 | 339 | 418 | 1 1 | 170 290 | 2 2 | 720 460 | 285 266 | NN3060 | NNU4960 — | 2 1 | 313 316 | 335 | 343 | 407 444 | 421 | 2.5 3 | 51.9 70.8 | |
| 320 | 480 480 | 121 160 | 4 4 | 362 | 438 | 1 1 | 350 970 | 2 4 | 670 040 | 283 414 | NN3064 — | NNU4064 | 1 2 | 336 336 | 358 | 367 | 464 464 | 442 | 3 3 | 76.4 99.9 | |
| 340 | 460 520 | 118 180 | 3 5 | 372 387 | — | 1 2 | 270 370 | 2 4 | 930 810 | 301 486 | NNU4968 NNU4068 | 2 2 | 353 360 | 368 383 | 383 393 | 447 500 | — — | 2.5 4 | 56.8 136 | ||
| 360 | 480 540 540 540 600 | 118 134 180 266 192 | 3 5 5 5 5 | 390 407 407 | 538 | 1 1 2 3 2 | 340 560 430 930 820 | 3 3 5 9 5 | 050 090 050 410 400 | 314 315 503 903 534 | NN3072 — NN3172 | NNU4972
NNU4072 72NNU54266 — | 2 1 2 2-P 1 | 373 380 380 380 380 | 387 403 403 | 394 413 413 | 467 520 520 520 580 | 497 — 543 | 2.5 4 4 4 4 | 58.2 107 142 219 218 | |
| 380 | 570 | 300 | 4 | 423 | 4 | 970 | 11 | 700 | 1 100 | — 76NNU57300 | 2-P | 396 | 417 | 425 | 554 | — | 3 | 271 | |||
| 400 | 600 600 600 | 148 170 200 | 5 5 5 | 452 453 | 2 2 2 | 030 930 970 | 4 6 6 | 140 200 280 | 414 611 608 | NN3080 | 80NNU60170 NNU4080 | 1 2-P 2 | 420 420 420 | 447 448 | 458 459 | 580 580 580 | 552 | 4 4 4 | 146 172 195 | ||
| 410 | 600 | 220 | 5 | 470 | — | 3 | 700 | 9 | 060 | 856 | — 82DC60220 | 2-P | 430 | 465 | 476 | 580 | — | 4 | 214 | ||
CMTG BEARING CO.,LIMITED. has been engaged in bearing industry for many years, we provide a wide selections of brands, including FAG bearing, SKF bearing,NSK bearing,Nachi bearing, TIMKEN bearing, THK Linear Guide and Linear Block …ect.
Bearing typies including standard bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings,spherical plain bearings, high temperature,super-precision bearings, as well as some rare types customized to your need.
Contact us if any bearing in demand . we will check and revert ASAP.
