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NTN - Large Bearings

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Double Row Tapered Roller <strong>Bearings</strong> (Outside Direction)<br />

Sb<br />

Db<br />

r1a<br />

ra<br />

da<br />

Equivalent bearing load<br />

dynamic<br />

PrXFrYFa<br />

Fa<br />

Fr<br />

e<br />

Fa<br />

e Fr<br />

X Y X Y<br />

1 Y1 0.67 Y2<br />

static<br />

PorFrYoFa<br />

For values of e, Y2 and Yo<br />

see the table below.<br />

Abutment and fillet dimensions Load Constant Axial load factors Mass<br />

center<br />

mm mm kg<br />

d a D b S b r as r las<br />

min min min max max a e Y 1 Y 2 Y o (approx.)<br />

322 434 15 4 1.5 163 0.37 1.80 2.69 1.76 80.2<br />

328 471 9 5 2 182 0.40 1.68 2.50 1.64 115<br />

328 467 20 5 2 202 0.40 1.68 2.50 1.64 144<br />

322 498 25 4 2 238 0.49 1.38 2.06 1.35 184<br />

342 449 6.5 4 1.5 157 0.37 1.80 2.69 1.76 70.9<br />

342 455 15 4 1.5 170 0.37 1.80 2.69 1.76 85.4<br />

348 505 9.5 5 2 197 0.40 1.68 2.50 1.64 150<br />

348 504.5 22 5 2 217 0.40 1.68 2.50 1.64 186<br />

342 514 30 4 2 233 0.40 1.68 2.50 1.64 223<br />

358 477 20 5 1.5 195 0.39 1.74 2.59 1.70 117<br />

354 441 16 2.5 1 161.5 0.32 2.12 3.15 2.07 70<br />

362 481 23 4 1.5 218.5 0.33 2.03 3.02 1.98 154<br />

368 488 7.5 5 2 170 0.37 1.80 2.69 1.76 89.2<br />

368 489 16 5 2 184 0.37 1.80 2.69 1.76 113<br />

368 548 10.5 5 2 213 0.40 1.68 2.50 1.64 188<br />

368 542 24 5 2 237 0.40 1.68 2.50 1.64 235<br />

388 507 7 5 2 176 0.37 1.80 2.69 1.76 98.2<br />

388 509 17.5 5 2 192 0.37 1.80 2.69 1.76 120<br />

388 561 10.5 5 2 219 0.40 1.68 2.50 1.64 199<br />

388 563 24 5 2 240 0.40 1.68 2.50 1.64 248<br />

408 483 25.5 5 1.5 221 0.53 1.27 1.89 1.24 69.5<br />

408 528 6.5 5 2 183 0.37 1.80 2.69 1.76 95.9<br />

408 529 18 5 2 196 0.37 1.80 2.69 1.76 126<br />

408 583 10.5 5 2 225 0.40 1.68 2.50 1.64 210<br />

402 582 35.5 4 2 263 0.46 1.47 2.19 1.44 252<br />

408 578 24.5 5 2 249 0.40 1.68 2.50 1.64 262<br />

408 564 27.5 3 2 216.5 0.40 1.70 2.50 1.66 175<br />

428 519.5 20 5 1.5 216 0.48 1.41 2.09 1.37 80.6<br />

428 564 8 5 2 194 0.37 1.80 2.69 1.76 105<br />

428 564 18.5 5 2 210 0.37 1.80 2.69 1.76 163<br />

428 610 11 5 2.5 232 0.40 1.68 2.50 1.64 236<br />

428 610 25 5 2.5 256 0.40 1.68 2.50 1.64 294<br />

B-135

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