NTN - Large Bearings

Spherical Roller Bearings
B
r
r
D
d
d
Cylindrical bore
Tapered bore
taper 1:12
d 380460mm
Boundary dimensions Basic load ratings Bearing numbers Abutment and
dynamic static dynamic static fillet dimensions
mm kN kgf mm
d D B r s min
1
Cylindrical tapered 2 d a D a r as
C r C or C r C or bore bore min max max
380
390
400
420
440
450
680 240 6 5,200 9,650 530,000 985,000 23276B 23276BK 408 652 5
680 245 6 5,200 9,650 536,000 985,000 2P7603 2P7603K 408 652 5
510 90 3 1,310 3,050 133,000 310,000 2P7801 2P7801K 404 496 2.5
500 100 2.1 1,330 3,500 135,000 360,000 24880 24880K30 412 488 2
540 106 4 1,580 3,650 161,000 370,000 23980 23980K 418 522 3
600 148 5 2,980 6,050 305,000 615,000 23080B 23080BK 422 578 4
600 200 5 3,850 8,400 390,000 855,000 24080B 24080BK30 422 578 4
650 200 6 4,200 8,050 425,000 820,000 23180B 23180BK 428 622 5
650 250 6 5,100 10,300 520,000 1,060,000 24180B 24180BK30 428 622 5
720 256 6 5,850 10,600 595,000 1,080,000 23280B 23280BK 428 692 5
720 260 6 5,850 10,600 595,000 1,080,000 2P8002 2P8002K 428 692 5
520 75 2.1 1,090 2,710 111,000 277,000 23884 23884K 432 508 2
560 106 4 1,630 3,850 166,000 390,000 23984 23984K 438 542 3
620 150 5 3,100 6,400 315,000 650,000 23084B 23084BK 442 598 4
620 200 5 3,850 8,450 395,000 865,000 24084B 24084BK30 442 598 4
700 224 6 5,200 9,950 530,000 1,020,000 23184B 23184BK 448 672 5
700 280 6 6,150 12,200 625,000 1,240,000 24184B 24184BK30 448 672 5
760 272 7.5 6,550 12,000 665,000 1,230,000 23284B 23284BK 456 724 6
600 118 4 2,030 4,700 207,000 480,000 23988 23988K 458 582 3
650 157 6 3,300 6,850 335,000 695,000 23088B 23088BK 468 622 5
650 212 6 4,300 9,450 440,000 960,000 24088B 24088BK30 468 622 5
720 226 6 5,200 10,100 530,000 1,030,000 23188B 23188BK 468 692 5
720 280 6 6,450 13,100 660,000 1,330,000 24188B 24188BK30 468 692 5
790 280 7.5 6,900 12,800 705,000 1,310,000 23288B 23288BK 476 754 6
790 285 7.5 6,900 12,800 705,000 1,310,000 2P8802 2P8802K 476 754 6
620 190 3 3,050 7,400 315,000 755,000 2P9002 2P9002K 464 606 2.5
580 118 3 1,840 4,850 187,000 495,000 24892 24892K30 474 566 2.5
620 118 4 2,100 4,950 214,000 505,000 23992 23992K 478 602 3
460
620 140 4 2,440 6,000 248,000 610,000 2P9203 2P9203K 478 602 3
680 163 6 3,600 7,450 365,000 760,000 23092B 23092BK 488 652 5
680 218 6 4,600 10,200 470,000 1,040,000 24092B 24092BK30 488 652 5
760 240 7.5 5,700 11,400 585,000 1,160,000 23192B 23192BK 496 724 6
760 300 7.5 7,100 14,500 725,000 1,480,000 24192B 24192BK30 496 724 6
1 Smallest allowable dimension for chamfer dimension r.
2 Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
B-216