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Text version of the page
Steel Industry 39
Bearing Numbers
Boundary Dimensions (mm/inch) Basic Load Ratings (kN) Constant
e
Axial Load Factors
d D B4 C4 r (min) r1 (min) Cr COr Y2 Y3
*WTF343KVS4551Eg 340.052
(13.5060)
457.098
(17.9960)
254.000
(10.0000)
254.000
(10.0000) 3.3 1.5 2 830 6 700 0.45 2.2 1.5
*WTF355KVS4551Eg 355.600
(14.0000)
457.200
(18.0000)
252.412
(9.9375)
252.412
(9.9375) 3.3 1.5 2 650 6 750 0.32 3.2 2.1
*WTF406KVS5451Eg 406.400
(16.0000)
546.100
(21.5000)
288.925
(11.3750)
288.925
(11.3750) 6.4 1.5 3 950 9 450 0.48 2.1 1.4
WTF450KVS5901Eg 450 595 368 368 5.0 4.0 5 550 15 000 0.33 3.0 2.0
*WTF457KVS5951Eg 457.200
(18.0000)
596.900
(23.5000)
276.225
(10.8750)
276.225
(10.8750) 3.3 1.5 4 000 9 850 0.47 2.2 1.4
WTF482KVS6151Eg 482.600
(19.0000)
615.950
(24.2500)
330.200
(13.0000)
330.200
(13.0000) 6.4 4.3 4 900 13 500 0.33 3.1 2.1
Remarks (*) Bearings marked * are inch designs.
Water-TFTM Bearings are a special purpose bearing series in the same design as the standard Extra-Capacity Sealed-Clean Four-Row Tapered Roller Bearings.
Other bearings are available. Please contact NSK for additional information.
Dynamic Equivalent Load
P = XFr + YFa
Fa / Fr e Fa / Fr > e
X Y X Y
1 Y3 0,67 Y2
Static Equivalent Load
P0 = Fr + Y0Fa
Where Y0 = Y3
The values of e, Y2 and Y3 are given in the table.
C4
r
B4
r1
D d