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NTN - Large Bearings

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Single Row Tapered Roller <strong>Bearings</strong><br />

Sa<br />

Sb<br />

Da<br />

db<br />

r1a<br />

ra<br />

da<br />

Db<br />

Equivalent bearing load<br />

dynamic<br />

PrXFrYFa<br />

Fa Fa<br />

e<br />

Fr Fr e<br />

X Y X Y<br />

1 0 0.4 Y2<br />

static<br />

Por0.5FrYoFa<br />

When PorFr use PorFr<br />

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

see the table below.<br />

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

center<br />

load factors<br />

mm mm kg<br />

d a d b D a D b S a S b r as r 1as<br />

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

182 183 220 213 222 7 8 2 2 42.5 0.38 1.57 0.86 4.4<br />

184 187 248 230 249 10 14 2.5 2 56 0.44 1.35 0.74 10.5<br />

192 203 292 266 288 8 14 4 3 60.5 0.44 1.38 0.76 17<br />

192 201 292 258 293 10 20 4 3 75 0.44 1.38 0.76 28.7<br />

192 221 342 303 329 10 18 4 3 68 0.35 1.74 0.96 35.3<br />

192 221 342 303 332 10 18 4 3 69.5 0.37 1.60 0.88 34.8<br />

188 209 342 287 336 1.5 27 3 3 89.5 0.37 1.60 0.88 56.5<br />

192 193 240 225 241 8 11 2 2 54 0.48 1.25 0.69 6.54<br />

194 199 268 247 267 10 16 2.5 2 59.5 0.42 1.42 0.78 14.5<br />

202 211 302 274 297 9 14 4 3 63 0.45 1.33 0.73 17.7<br />

202 204 302 267 305 10 20 4 3 77.5 0.45 1.33 0.73 30.7<br />

198 227.5 362 314 345 1.5 19 3 3 72.5 0.37 1.60 0.88 38.9<br />

198 221 362 305 357 2.4 28 3 3 95 0.37 1.60 0.88 67.8<br />

202 204 250 235 251 8 11 2 2 55 0.48 1.26 0.69 6.77<br />

202 204 248 235 251 8 9 2 2 48.5 0.37 1.60 0.88 6.43<br />

204 209 278 257 279 10 16 2.5 2 62.5 0.44 1.36 0.75 15.1<br />

212 228 322 295 316 9 14 4 3 64 0.44 1.38 0.76 20.8<br />

212 216 322 282 323 11 22 4 3 82 0.44 1.38 0.76 36.1<br />

212 216 322 286 323 11 22 4 3 87.5 0.49 1.23 0.68 33.3<br />

212 242 378 335 366.5 2.3 21 4 4 74.5 0.37 1.60 0.88 43.5<br />

212 233.5 378 320 373.5 1.5 31 4 4 100 0.37 1.60 0.88 76.9<br />

214 214 268 254 271 9 12 2.5 2 53.5 0.39 1.52 0.84 8.88<br />

214 221 298 273 297 11 17 2.5 2 66.5 0.43 1.39 0.77 19.3<br />

222 242 342 311 336 10 16 4 3 70 0.44 1.38 0.76 25.4<br />

222 230 342 298 340 11 22 4 3 85 0.41 1.48 0.81 43.6<br />

222 230 342 302 344 11 22 4 3 91.5 0.49 1.23 0.68 43.6<br />

222 252.5 398 350 382.5 5.3 22 4 4 77 0.37 1.60 0.88 51.5<br />

222 243.5 398 335 391.5 3.2 31 4 4 105 0.37 1.60 0.88 88.8<br />

234 234 288 271 290 10 12 2.5 2 59.5 0.43 1.41 0.78 10.2<br />

234 235 288 274 290 10 10 2.5 2 57 0.39 1.55 0.85 9.63<br />

238 243 326 300 326 12 19 3 2.5 72.5 0.43 1.39 0.77 25<br />

238 263 382 334 368 3.4 18 3 3 82 0.49 1.23 0.68 34.7<br />

238 255 382 323 380.5 4.4 24 3 3 102 0.49 1.23 0.68 59.9<br />

242 276.5 438 383 418.5 4.2 24 4 4 86.5 0.37 1.60 0.88 66.7<br />

242 267.5 438 371 431 1.5 32 4 4 112 0.37 1.60 0.88 112.8<br />

B-101

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