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-67989/67920 227 221 260 275 3.5 3.3 –15.9 0.51 1.18 0.65 7.23
T-93825/93125 233 227 286 300 4.3 3.3 –7.9 0.52 1.15 0.63 15.8
T-LM742745/LM742710 230 225 266 279 3.5 3.3 –14.2 0.48 1.25 0.69 7.33
T-LM742749/LM742710 233 227 266 279 3.5 3.3 –14.2 0.48 1.25 0.69 7.05
543085/543114 232 226 272 276 3.5 3.3 –12.5 0.38 1.58 0.87 5.20
T-LM742747/LM742710 233 227 266 279 3.5 3.3 –14.2 0.48 1.25 0.69 7.40
T-M244249/M244210 245 235 293 300 6.4 3.3 4.4 0.33 1.80 0.99 13.6
EE113089/113170 274 267 375 397 6.4 6.4 –40.3 0.88 0.68 0.37 59.4
EE113091/113170 274 267 375 397 6.4 6.4 –40.3 0.88 0.68 0.37 59.4
T-544090/544118 244 240 282 287 3.5 3.3 –15.8 0.40 1.49 0.82 6.05
T-8573/8520 255 244 305 313 6.4 3.3 –7.8 0.41 1.48 0.81 12.5
T-96900/96140 260 249 318 334 7 3.3 –16.9 0.59 1.02 0.56 24.3
T-EE130902/131400 257 247 329 330 6.8 1.5 9.9 0.33 1.82 1.00 22.7
HM746646/HM746610 258 248 324 338.7 6.4 6.4 –6 0.47 1.27 0.70 22.7
T-M249732/M249710 256 251 335 343 3.5 3.3 6.9 0.33 1.80 0.99 23.9
EE430900/431575 271 253 360 364 10.5 3.3 2.8 0.44 1.36 0.75 46.0
T-HH949549/HH949510G2 297 280 416 456 6.4 6.4 –39.9 0.94 0.64 0.35 111
T-544091/544118 247 243 282 287 3.5 3.3 –15.8 0.40 1.49 0.82 5.81
T-M246942/M246910 258 249 313 322 6.4 3.3 4.7 0.33 1.80 0.99 16.9
T-M249734/M249710 263 254 335 343 6.4 3.3 6.9 0.33 1.80 0.99 23.4
LM446349/LM446310 252 246 294 301 3.5 3.3 –6.6 0.36 1.66 0.91 8.38
T-LM545849/LM545810 252 246 296 306 3.5 3.3 –8.4 0.40 1.51 0.83 9.38
T-8575/8520 259 248 305 313 6.4 3.3 –7.8 0.41 1.48 0.81 11.9
T-96925/96140 265 254 318 334 7 3.3 –16.9 0.59 1.02 0.56 22.5
T-M252330/M252310 271 261 356 364 6.4 3.3 6.2 0.33 1.80 0.99 29.3
T-H247549/H247510 269 259 346 362 6.4 6.4 28.1 0.33 1.80 0.99 45.5
T-M246949/M246910 262 253 313 322 6.4 3.3 4.7 0.33 1.80 0.99 16.2
T-M249736/M249710 267 258 335 343 6.4 3.3 6.9 0.33 1.80 0.99 22.6
1 "" means that load center at outside on end of inner ring.
B-111