Ball and Roller Bearings - Ntn-snr.com

Four-Row Cylindrical Roller Bearings
C1
C1
r
r1
r
r1
B1
B1
D
d
FW
D
d FW
d 300460mm
Drawing 1 Drawing 2
Boundary dimensions
Basic load ratings
dynamic static dynamic static
mm kN kgf
1
1
d D B 1 C 1 r s min r 1s min C r C or C r C or
300
310
320
330
340
360
370
380
400
410
420
440
460
420 320 300 3 3 2,900 7,850 295,000 800,000
460 270 270 3 3 2,510 5,350 256,000 545,000
430 240 240 3 3 2,240 5,950 228,000 605,000
440 240 230 3 3 2,290 6,050 234,000 615,000
450 240 240 3 3 2,370 6,150 242,000 630,000
460 340 340 3 3 3,400 9,450 345,000 960,000
470 350 350 3 3 4,150 10,900 425,000 1,110,000
440 200 200 3 3 1,820 4,850 186,000 495,000
460 340 340 4 4 3,250 8,850 330,000 905,000
480 370 350 5 5 3,450 9,650 350,000 985,000
490 300 300 4 4 3,350 8,300 340,000 845,000
510 400 400 5 5 4,250 11,500 435,000 1,170,000
480 230 230 5 5 2,100 6,250 214,000 635,000
520 400 400 5 5 4,650 13,500 475,000 1,370,000
520 280 280 4 4 3,400 9,150 350,000 935,000
520 300 300 4 4 3,550 9,600 360,000 980,000
540 400 400 4 4 5,200 15,200 530,000 1,550,000
560 400 400 5 5 4,250 11,800 430,000 1,210,000
560 410 410 4 4 5,750 17,000 585,000 1,730,000
546 400 400 5 5 4,200 12,700 430,000 1,290,000
560 280 280 4 4 3,150 8,750 320,000 895,000
580 230 230 4 4 2,430 6,250 248,000 635,000
620 400 400 5 5 5,000 13,400 510,000 1,360,000
620 450 450 5 5 6,450 18,700 660,000 1,910,000
620 400 400 4 4 5,350 16,700 545,000 1,700,000
620 400 400 4 4 4,950 15,000 505,000 1,530,000
650 470 470 5 5 7,150 20,600 730,000 2,100,000
1 Minimal allowable dimension for chamfer dimension r or r1. 2 Oil inlet and oil groove are in center of the outer ring; no oil groove on the side.
3 Oil inlet in space of outer ring; no oil groove. 4 One-piece inner ring.
B-124