NTN - Large Bearings
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Double Row Tapered Roller <strong>Bearings</strong> (Inside Direction)<br />
Metric system sizes<br />
C1<br />
r<br />
r1<br />
B<br />
D<br />
d<br />
a<br />
d 300420mm<br />
Boundary dimensions Basic load ratings Bearing numbers<br />
dynamic static dynamic static<br />
mm kN kgf<br />
d D B C 1 r s min 1 r ls min<br />
1<br />
C r C or C r C or<br />
300<br />
304.648<br />
320<br />
340<br />
350<br />
360<br />
379<br />
380<br />
385<br />
400<br />
460 118 118 4 5 1,610 3,150 165,000 320,000 323060<br />
500 160 160 5 6 2,100 4,050 214,000 415,000 323160<br />
438.048 128.575 138.112 4.83 3.3 1,480 3,450 151,000 350,000 CRD-6132<br />
480 121 121 4 5 1,580 3,100 162,000 315,000 323064<br />
510.8 220 220 4 4 3,100 6,850 320,000 700,000 CRD-6409<br />
540 176 176 5 6 2,500 4,900 255,000 500,000 323164<br />
580 240 240 5 3 3,700 7,800 380,000 795,000 CRD-6415<br />
620 280 280 5 5 5,250 10,300 535,000 1,050,000 CRD-6420<br />
470 110 110 3 3 1,320 3,050 134,000 310,000 CRD-6804<br />
520 133 133 5 6 1,890 3,750 193,000 380,000 323068<br />
580 190 190 5 6 3,350 6,500 345,000 660,000 323168<br />
480 110 110 4 4 1,400 3,150 143,000 320,000 CRD-7015<br />
590 192 192 5 5 3,200 6,100 330,000 620,000 CRD-7011<br />
540 134 134 5 6 2,050 4,200 209,000 430,000 323072<br />
600 192 192 5 6 3,200 6,500 325,000 660,000 323172<br />
680 320 330 6 6 6,500 13,900 665,000 1,410,000 CRD-7207<br />
681.5 307 307 6 6 6,450 14,300 660,000 1,460,000 CRD-7615<br />
681.5 307 307 6 6 6,450 14,300 660,000 1,460,000 CRD-7621<br />
560 135 135 5 6 2,080 4,350 213,000 445,000 323076<br />
620 194 194 5 6 3,350 6,700 340,000 685,000 323176<br />
530 180 180 4 2 2,370 5,750 241,000 590,000 CRD-7701<br />
590 142 142 5 5 2,400 5,050 245,000 515,000 CRD-8008<br />
590 142 142 5 5 2,080 4,150 212,000 425,000 CRD-8012<br />
600 148 148 5 6 2,530 5,450 258,000 555,000 323080<br />
650 200 200 6 6 3,750 7,850 385,000 800,000 323180<br />
650 250 250 6 6 4,900 10,500 500,000 1,070,000 CRD-8017<br />
730 340 340 7.5 7.5 7,400 15,900 755,000 1,620,000 CRD-8029<br />
780 380 380 7.5 7.5 8,800 17,700 900,000 1,800,000 CRD-8040<br />
420 520 90 90 4 1.5 1,020 2,700 105,000 275,000 CRD-8402<br />
1 Minimum allowable dimension for chamfer dimension r or r1. 2 "" means the load center is out side the inner ring.<br />
Remarks: 1. The marked "" bearings are inch system sizes. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages.<br />
B-156
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