Ball and Roller Bearings - Ntn-snr.com

Spherical Roller Bearings
ra
Da
ra
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 Y1 0.67 Y2
static
PorFrYo Fa
For values of eY1Y2 and Yo
see the table below.
Abutment and Constant Axial load factors Mass approx.
fillet dimensions
mm
kg
d a D a r as cylindrical tapered
min max max e Y 1 Y 2 Y o bore bore
738 922 5 0.18 3.85 5.73 3.76 375 363
746 994 6 0.22 3.02 4.50 2.96 663 640
746 994 6 0.29 2.36 3.51 2.31 884 870
754 1,106 8 0.29 2.32 3.45 2.27 1,420 1,380
754 1,106 8 0.37 1.80 2.69 1.76 1,800 1,770
764 1,226 10 0.35 1.91 2.84 1.87 2,540 2,470
778 972 5 0.17 3.90 5.81 3.81 412 399
786 1,054 6 0.21 3.20 4.76 3.13 790 763
786 1,054 6 0.29 2.35 3.49 2.29 1,060 1,040
794 1,176 8 0.29 2.32 3.45 2.27 1,700 1,650
814 1,296 12 0.35 1.92 2.86 1.88 3,050 2,960
828 1,032 5 0.17 4.05 6.04 3.96 487 471
836 1,114 6 0.21 3.15 4.69 3.08 890 859
836 1,114 6 0.28 2.41 3.59 2.36 1,190 1,170
844 1,236 8 0.29 2.32 3.45 2.27 1,890 1,830
878 1,092 5 0.16 4.25 6.32 4.15 550 532
886 1,184 6 0.20 3.32 4.95 3.25 1,050 1,010
886 1,184 6 0.28 2.42 3.61 2.37 1,410 1,390
904 1,306 10 0.28 2.37 3.54 2.32 2,270 2,200
928 1,152 5 0.16 4.32 6.44 4.23 623 603
936 1,244 6 0.20 3.32 4.95 3.25 1,170 1,130
936 1,244 6 0.27 2.48 3.70 2.43 1,570 1,540
954 1,366 10 0.28 2.42 3.60 2.36 2,500 2,420
986 1,214 6 0.16 4.20 6.26 4.11 774 749
986 1,324 6 0.21 3.26 4.85 3.18 1,430 1,380
986 1,324 6 0.28 2.39 3.56 2.34 1,970 1,940
1,036 1,284 6 0.16 4.21 6.26 4.11 916 887
1,036 1,384 6 0.20 3.37 5.02 3.29 1,580 1,520
1,036 1,384 6 0.27 2.51 3.73 2.45 2,110 2,080
1,096 1,364 6 0.16 4.28 6.37 4.19 1,090 1,060
1,104 1,456 8 0.20 3.36 5.00 3.28 1,850 1,790
1,104 1,456 8 0.27 2.49 3.71 2.44 2,450 2,140
Note: Please refer to page B-230 for outer ring oil inlet and oil groove dimensions.
B-249