NTN - Large Bearings

Four Row Tapered Roller Bearings
Sa
Da
ra
r1a
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 Y1 0.67 Y2
static
PorFrYoFa
For values of e, Y2 and Yo
see the table below.
Bearing numbers Abutment and fillet dimensions Constant Axial load factors Mass
mm
kg
d a D a S a r as r las
min max max e Y 1 Y 2 Y o (approx.)
L163149D/L163110/L163110D 370 422 6.5 3.3 1.5 0.31 2.20 3.27 2.15 89.5
LM263149D/LM263110/LM263110D 372 434 6 3.3 1.5 0.32 2.12 3.15 2.07 106
LM763449D/LM763410/LM763410D 375 453 3 3.3 1.5 0.47 1.43 2.14 1.40 145
M263349D/M263310/M263310D (CRO-7123) 374 459 5 3.3 1.5 0.33 2.03 3.02 1.98 173
625972 (CRO-7227) 394 466.5 7 4 5 0.33 2.03 3.02 1.98 236
CRO-7220 391 0 5 4.5 3 0.33 2.03 3.02 1.98 260
CRO-7217 396 478 8.5 4 4 0.33 2.03 3.02 1.98 297
CRO-7211 400 496 5 4 2.5 0.33 2.03 3.02 1.98 270
CRO-7210 400 550 8 4 4 0.36 1.89 2.81 1.98 520
623172 (CRO-7228) 414.6 541.5 8 4 4.5 0.40 1.68 2.50 1.64 447
HM265049D/HM265010/HM265010DG2 (CRO-7406) 393.7 487 6 6.4 3.3 0.33 2.03 3.02 1.98 280
EE181455D/182350/182351D 421 541 7.5 6.4 6.4 0.42 1.62 2.42 1.59 373
LM765149D/LM765110/LM765110D 393 472 2 3.3 1.5 0.47 1.43 2.12 1.40 145
625976 410 494 8 4 5 0.33 2.03 3.02 1.98 277
623076 421 518 6.5 4 4 0.37 1.80 2.69 1.76 240
CRO-7612 417 525 7 4 4 0.40 1.68 2.50 1.64 208
CRO-7622 416 514 7 5 1.5 0.40 1.68 2.50 1.64 302.22
CRO-7621 423 515 6.5 4 1.5 0.40 1.68 2.50 1.64 312
T-HM266449D/HM266410/HM266410DG2 411 507 6.5 6.4 3.3 0.33 2.03 3.02 1.98 312
LM665949D/LM665910/LM665910D 409 482 7 2.5 2.5 0.42 1.61 2.40 1.58 240
CRO-7801 411 478 7 3 1.5 0.33 2.03 3.02 1.98 186
LM767745D/LM767710/LM767710D 418 510 6.5 6.4 1.5 0.48 1.42 2.11 1.38 219
CRO-7901 434 508 3 6 3 0.48 1.42 2.11 1.39 200
CRO-8005 436 515 8 4 4 0.40 1.68 2.50 1.64 300
625980 434 518.5 7 4 5 0.33 2.03 3.02 1.98 324
CRO-8010 447 579 6.5 4 2 0.33 2.03 3.02 1.98 564
EE234161D/234215/234216D 438 505 1.5 6.4 1.5 0.47 1.43 2.12 1.40 190
LM767749D/LM767710/LM767710D 427 510 6.5 6.4 1.5 0.48 1.42 2.11 1.38 201
Remarks: 1. Bearing numbers marked "" designate inch system bearings. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages.
3.
B-191