NTN - Large Bearings

4-Row Cylindrical Roller Bearings
C1
r1
r
B1
D
d
FW
d 8601,200mm
Boundary dimensions Basic load ratings Bearing Drawing 1
dynamic static dynamic static numbers No.
mm kN kgf
d D B 1 C 1 r s min
2
r ls min
2
C r C or C r C or
860
900
920
1,000
1,030
1,200
1,160 735 710 6 6 17,800 62,500 1,810,000 6,400,000 4R17201 F 1
1,230 895 870 7.5 7.5 24,700 88,000 2,520,000 9,000,000 4R18001 FM 2
1,280 865 850 7.5 7.5 26,200 88,500 2,670,000 9,000,000 4R18401 F
1,310 880 880 9.5 9.5 23,400 88,500 2,380,000 9,000,000 4R20001 F 1
1,360 800 800 7.5 7.5 25,000 85,000 2,550,000 8,650,000 4R20002 F 1
1,380 850 850 7.5 7.5 24,400 89,000 2,490,000 9,100,000 4R20601 F 1
1,590 1,050 1,050 7.5 7.5 36,000 133,000 3,650,000 13,600,000 4R24002 FS
1 Drawing details are shown in Page B-38.
2 Minimal allowable dimension for chamfer dimension r or r1.
B-78