NTN - Large Bearings

Deep Groove Ball Bearings
D
r
B
r
d
Da
ra
ra
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa Fa
Fa
e
e Fr Fr e
Cor
X Y X Y
0.010 0.18
0.020 0.20
0.040 0.24
0.070 0.27
0.10 0.29
0.15 0.32
0.20 0.35
0.30 0.38
0.40 0.41
0.50 0.44
static
Por0.6Fr0.5Fa
When PorFr use PorFr
1 0 0.56
2.46
2.14
1.83
1.61
1.48
1.35
1.25
1.13
1.05
1.00
d 260340mm
Boundary dimensions Basic load ratings Bearing Drawing 1 Abutment and Mass
dynamic static dynamic static numbers No. fillet dimensions
mm kN kgf mm kg
d D B r s min
2
d a D a r as
C r C or C r C or min max max approx.
260
280
290
300
310
320
360 46 2.1 222 280 22,600 28,500 6952 B 271 349 2 13.9
379.5 56 4 253 320 25,800 32,500 SC5206 G 278 362 3 20.8
400 44 3 227 299 23,200 30,500 16052 A 273 387 2.5 18.5
400 65 4 291 375 29,700 38,500 6052 A 276 384 3 25
480 80 5 400 540 41,000 55,000 6252 B 282 458 4 65.7
540 102 6 505 710 51,500 72,500 6352 B 288 512 5 116
350 33 2 137 177 13,900 18,100 6856 B 289 341 2 7.4
360 38 2.5 147 191 14,900 19,500 SC5605 B 292 348 2 9.47
380 46 2.1 227 299 23,200 30,500 6956 B 291 369 2 14.8
420 44 3 232 315 23,700 32,500 16056 B 293 407 2.5 23
420 65 4 325 420 33,000 43,000 6056 B 296 404 3 31
500 80 5 440 600 44,500 61,000 6256 B 302 478 4 70.9
580 108 6 530 760 54,000 77,500 6356 B 308 552 5 142
419.5 60 5 277 375 28,300 38,500 SC5803 G 312 398 4 26.8
380 38 2.1 162 210 16,500 21,500 6860 B 311 369 2 10.5
420 56 3 276 375 28,200 38,500 6960 B 313 407 2.5 23.5
460 50 4 292 410 29,800 42,000 16060 B 316 444 3 32.5
460 74 4 355 480 36,000 49,000 6060 B 316 444 3 43.8
540 85 5 465 670 47,500 68,500 6260 B 322 518 4 88.9
429.5 60 4 275 380 28,000 38,500 SC6201 B 328 412 3 25.8
450 50 4 286 420 29,200 42,500 SC6203 B 328 432 3 25.9
400 38 2.1 168 228 17,200 23,200 6864 B 331 389 2 10.9
440 56 3 285 405 29,000 41,000 6964 B 333 427 2.5 24.8
449.5 56 3 276 395 28,200 40,500 SC6406 B 334 436 2.5 27.6
470 70 4 330 475 34,000 48,500 SC6403 B 338 452 3 40.4
480 50 4 300 440 30,500 45,000 16064 B 336 464 3 34.2
480 74 4 370 530 38,000 54,000 6064 B 336 464 3 46.1
580 92 5 530 805 54,500 82,500 6264 B 342 558 4 110
340
420 38 2.1 170 236 17,400 24,000 6868 2 351 409 2 11.5
460 56 3 293 430 29,800 44,000 6968 B 353 447 2.5 26.2
489.5 60 5 290 435 29,600 44,000 SC6802 B 362 468 4 36.2
520 57 4 340 515 35,000 52,500 16068 B 356 504 3 47.1
520 82 5 420 610 42,500 62,500 6068 B 360 500 4 61.8
1 Drawing details are shown in Page B-5.
2 Smallest allowable dimension for chamfer dimension r.
B-9