NTN - Large Bearings

Single Row Tapered Roller Bearings
Da db
r1a
ra
da
Db
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 0 0.4 Y2
static
Por0.5FrYoFa
When PorFr use PorFr
For values of e, Y2 and Yo
see the table below.
Bearing numbers Abutment and fillet dimensions Load 1 Constant Axial Mass
center
load factors
mm mm kg
r as r 1as
d a d b D a D b max max a e Y 2 Y o (approx.)
T-8578/8520 264 253 305 313 6.4 3.3 –7.8 0.41 1.48 0.81 11.2
EE127095/127135 267 257 325 329 6.4 3.3 –3.2 0.35 1.70 0.93 15.9
EE170950/171450 269 260 340 337 6.4 3.3 –6.2 0.36 1.65 0.90 17.2
T-EE275095/275155 278 268 366 378 6.4 6.4 –2.5 0.40 1.49 0.82 34.3
T-EE923095/923175G2 277 268 403 407 6.4 4.8 19.3 0.34 1.78 0.98 68.0
EE126097/126150 275 266 343 358 6.4 4.8 –8 0.52 1.16 0.64 32.6
T-M348449/M348410 273 263 321 332 6.4 6.4 1.3 0.34 1.75 0.96 16.2
EE170975/171450 274 264 340 337 6.4 3.3 –6.2 0.36 1.65 0.90 16.5
T-M252337/M252310 280 271 356 364 6.4 3.3 6.2 0.33 1.80 0.99 27.3
HH249949/HH249910 284 275 366 383 6.4 6.4 28.9 0.33 1.80 0.99 55.6
EE126098/126150 279 269 343 358 6.4 4.8 –8 0.52 1.16 0.64 31.7
29875/29820 267 266 310 312 1.5 1.5 –21.1 0.35 1.73 0.95 3.92
T-M249749/M249710 274 270 335 343 3.5 3.3 –6.9 0.33 1.80 0.99 20.1
T-EE134100/134143 281 272 339 347 6.4 6.4 –5 0.37 1.60 0.88 17.7
T-EE275100/275155 287 277 366 378 6.4 6.4 –2.5 0.40 1.49 0.82 32.1
T-HM252343/HM252310 287 281 392 400 6.8 3.3 9.3 0.33 1.80 0.99 47.1
HH953749/HH953710 328 306.3 455 496 6.4 6.4 –44.7 0.94 0.64 0.35 141
M349549/M349510 281 269 322 333 6.4 3.3 –2.5 0.35 1.73 0.95 12.9
M349549A/M349510 289 269 322 333 10.7 3.3 –2.5 0.35 1.73 0.95 12.9
T-EE134102/134143 286 276 339 347 6.4 6.4 –5 0.37 1.60 0.88 16.8
EE221026/221575 296 280 366 372 9.7 6.4 –1.8 0.39 1.52 0.84 27.0
EE435102/435165 295 285 376 395 6.4 3.3 –20.7 0.61 0.99 0.54 44.4
T-HM252348/HM252310 292 285 392 400 6.8 3.3 9.3 0.33 1.80 0.99 45.7
EE295102/295193 299 290 444 451 6.4 6.4 28.7 0.31 1.92 1.06 90.3
T-38880/38820 275 275 312 315 1.5 1.5 –20.5 0.37 1.64 0.90 4.56
T-LM451345/LM451310 283 279 335 343 3.5 3.3 –4.7 0.36 1.67 0.92 14.2
29880/29820 277 275 310 312 1.5 1.5 –21.1 0.35 1.73 0.95 3.28
T-38885/38820 277 277 312 315 1.5 1.5 –20.5 0.37 1.64 0.90 4.35
T-LM451349/LM451310 285 281 335 343 3.5 3.3 –4.7 0.36 1.67 0.92 15.0
T-LM451349A/LM451310 299 281 335 343 10.5 3.3 –4.7 0.36 1.67 0.92 13.8
T-EE275105/275155 296 287 366 378 6.4 6.4 –2.5 0.40 1.49 0.82 29.7
1 "" means that load center at outside on end of inner ring.
B-113