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.)
EE244180/244235 494 478 567 570 9.7 3.3 –27.1 0.40 1.48 0.82 53.9
LM770949/LM770910 489 479 570 579 6.4 3.3 –29.7 0.46 1.32 0.72 63.8
LM272235/LM272210G2 493 483 585 597 6.4 6.4 –11.3 0.33 1.80 0.99 63.8
EE671801/672873 507 491 675 681 9.7 6.4 –6.6 0.39 1.53 0.84 188
LL771948/LL771911 495 491 543 549 3.3 3.3 –58.4 0.47 1.28 0.70 16.7
T-M272749/M272710G2 516 507 633 648 6.4 6.4 8.9 0.33 1.80 0.99 130
LM272249/LM272210G2 513 501 585 597 6.4 6.4 –11.3 0.33 1.80 0.99 54.9
EE243190/243250 516 510 603 609 6.4 3.3 –18.5 0.34 1.76 0.97 60.2
LM772748/LM772710A 522 510 600 613 6.4 3.3 –40.4 0.47 1.27 0.70 60.3
T-EE640192/640260G2 522 513 624 630 6.4 6.4 –4.9 0.31 1.95 1.07 85.2
EE243192/243250 522 516 603 609 6.4 3.3 –18.5 0.34 1.76 0.97 58.0
EE243196/243250 528 522 603 609 6.4 3.3 –18.5 0.34 1.76 0.97 54.7
M274149/M274110G2 540 534 663 678 6.4 6.4 11.8 0.33 1.80 0.99 152
EE426200/426330 564 552 759 768 9.7 9.7 –26.1 0.48 1.25 0.69 296
LL575343/LL575310 558 549 612 621 6.4 6.4 –50.3 0.41 1.48 0.81 26.4
M276449/M276410G2 576 570 711 726 6.4 6.4 10.5 0.33 1.80 0.99 187
LL575349/LL575310 564 555 612 621 6.4 6.4 –50.3 0.41 1.48 0.81 24.9
L476549/L476510 579 570 657 666 6.4 6.4 –32.2 0.38 1.59 0.88 68.2
EE542220/542290 594 585 696 705 6.4 6.4 –66.6 0.51 1.17 0.65 76.7
EE843220/843290 591 585 699 708 6.4 6.4 –21.8 0.34 1.76 0.97 88.7
LM377449/LM377410 594 585 696 708 6.4 6.4 –15.6 0.35 1.73 0.95 106
M278749/M278710AG2 615 609 756 774 6.4 6.4 12.7 0.33 1.80 0.99 227
T-LL778149/LL778110 603 600 663 669 3.5 3.3 –64.5 0.44 1.37 0.75 27.8
1 "" means that load center at outside on end of inner ring.
B-121