NTN - Large Bearings

Double Row Tapered Roller Bearings (Inside Direction)
Sa
Da
r1a
ra
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 Load 1 Constant Axial load factors Mass
fillet dimensions center
mm mm kg
d a D a r as r las
min min max max a e Y 1 Y 2 Y o (approx.)
M280049D/M280010G2+A 633 786 3.3 6.4 1 0.33 2.03 3.02 1.98 525
T-EE649241D/649310G2+A 636 747 3.3 6.4 79 0.37 1.82 2.71 1.78 210
M280349D/M280310G2+A 648 807 3.3 6.4 –4.5 0.33 2.03 3.02 1.98 585
M281049D/M281010G2+A 675 843 3.3 6.4 6 0.33 2.03 3.02 1.98 641
M281649D/M281610G2+A 699 870 3.3 6.4 6 0.33 2.03 3.02 1.98 711
L281149D/L281110G2+A 684 777 3.3 6.4 89 0.37 1.80 2.69 1.76 195
LM281849D/LM281810G2+A 714 852 3.3 6.4 31.5 0.33 2.03 3.02 1.98 459
EE655271D/655345G2+A 717 831 3.3 6.4 129 0.42 1.61 2.4.0 1.58 247
LM282549D/LM282510G2+A 741 879 3.3 6.4 33 0.33 2.03 3.02 1.98 490
EE755281D/755360G2+A 744 873 3.3 6.4 127 0.38 1.77 2.64 1.73 243
LM283649D/LM283610G2+A 786 936 3.3 6.4 34.5 0.33 2.03 3.02 1.98 606
M284148D/M284111G2+A 819 996
special
chamfer 12.7 14 0.33 2.03 3.02 1.98 968
M284249D/M284210G2+A 810 1,005 4.8 12.7 0 0.33 2.03 3.02 1.98 1,097
LM286249D/LM286210G2+A 906 1,065 4.8 12.7 49.5 0.33 2.03 3.02 1.98 848
EE547341D/547480G2+A 918 1,135 4.8 12.7 1.5 0.33 2.03 3.02 1.98 1,552
LM287649D/LM287610G2+A 990 1,190 4.8 12.7 30.5 0.33 2.03 3.02 1.98 1,444
LM287849D/LM287810G2+A 999 1,240 4.8 12.7 3.5 0.33 2.03 3.02 1.98 1,540
1 "" means the load center is out side the inner ring.
B-169