NTN - Large Bearings
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Single Row Tapered Roller <strong>Bearings</strong><br />
Inch system sizes<br />
r1<br />
T<br />
C<br />
D<br />
B<br />
r<br />
d<br />
a<br />
d 304.800381.000mm<br />
Boundary dimensions<br />
Basic load ratings<br />
dynamic static dynamic static<br />
mm kN kgf<br />
d D T B C C r C or C r C or<br />
304.800<br />
317.500<br />
330.200<br />
333.375<br />
342.900<br />
346.075<br />
349.250<br />
355.600<br />
361.950<br />
368.249<br />
371.475<br />
374.650<br />
558.800 136.525 136.525 98.425 1,950 3,800 199,000 385,000<br />
444.500 63.500 61.912 39.688 630 1,150 64,000 117,000<br />
447.675 85.725 85.725 68.262 1,160 2,390 118,000 244,000<br />
622.300 147.638 131.762 82.550 2,080 3,550 212,000 365,000<br />
415.925 47.625 47.625 34.925 445 1,060 45,000 108,000<br />
415.925 47.625 47.625 34.925 445 1,060 45,000 108,000<br />
482.600 60.325 55.562 38.100 700 1,430 71,500 146,000<br />
482.600 85.725 80.167 60.325 955 1,970 97,500 201,000<br />
469.900 90.488 90.488 71.438 1,350 2,760 138,000 282,000<br />
450.850 66.675 66.675 52.388 785 1,780 80,000 182,000<br />
457.098 68.262 63.500 47.625 705 1,640 72,000 167,000<br />
533.400 76.200 76.200 50.800 1,070 1,730 109,000 176,000<br />
482.600 60.325 55.562 38.100 700 1,430 71,500 146,000<br />
488.950 95.249 95.250 74.612 1,420 3,000 145,000 305,000<br />
488.950 95.250 95.250 74.612 1,480 3,200 151,000 325,000<br />
501.650 90.488 84.138 69.850 1,190 2,280 122,000 233,000<br />
444.500 60.325 60.325 47.625 655 1,740 67,000 177,000<br />
469.900 60.325 55.562 38.100 700 1,430 71,500 146,000<br />
482.600 60.325 55.562 38.100 700 1,430 71,500 146,000<br />
501.650 74.612 66.675 50.800 900 1,830 92,000 187,000<br />
501.650 90.488 84.138 69.850 1,190 2,280 122,000 233,000<br />
406.400 23.812 23.812 17.462 173 470 17,600 48,000<br />
523.875 101.600 101.600 79.375 1,520 3,250 155,000 335,000<br />
501.650 74.612 66.675 50.800 900 1,830 92,000 187,000<br />
522.288 85.725 84.138 61.912 1,060 2,270 108,000 232,000<br />
381.000 479.425 49.212 47.625 34.925 540 1,270 55,500 130,000<br />
508.000 63.500 58.738 38.100 540 1,130 55,000 116,000<br />
Remarks: 1. With regard to the chamfer dimensions on the back face of the inner and outer rings, installation dimensions ras and r1as are larger than the maximum value.<br />
2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages.<br />
B-116
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