NTN - Large Bearings

4-Row Cylindrical Roller Bearings
C1
r1
r
B1
D
d
FW
d 170230mm
Boundary dimensions Basic load ratings Bearing 1 Drawing 2
dynamic static dynamic static numbers No.
mm kN kgf
d D B 1 C 1 r s min
3
r ls min
3
C r C or C r C or
170
180
190
200
210
220
260 225 225 2.5 2.5 1,310 3,150 134,000 320,000 4R3431 A
250 156 156 2.5 2.5 895 2,180 91,500 223,000 4R3625 A
250 168 168 2 2 885 2,470 90,000 252,000 4R3639 A
260 168 168 2.5 2.5 1,020 2,400 104,000 244,000 4R3628 A
265 180 180 2.5 2.5 1,090 2,510 111,000 256,000 4R3618 A
260 168 168 2.5 2.5 980 2,600 100,000 265,000 4R3820 A
270 170 170 2.5 2.5 1,090 2,660 111,000 272,000 4R3818 A
270 200 200 2.5 2.5 1,260 3,100 128,000 315,000 4R3821 A
270 200 200 2.5 2.5 1,230 3,200 125,000 330,000 4R3817 A
280 200 200 2.5 2.5 1,240 2,910 126,000 297,000 4R3823 B
280 200 200 2.5 2.5 1,240 2,910 126,000 297,000 4R3830 C
270 170 170 2.5 2.5 970 2,610 99,000 266,000 4R4039 A
280 152 152 2.1 2.1 1,000 2,320 102,000 237,000 4R4054 B 2
280 170 170 2.5 2.5 1,040 2,430 106,000 248,000 4R4048 A
280 190 190 2.5 2.5 1,190 3,150 121,000 320,000 4R4026 A
280 200 200 2.5 2.5 1,310 3,300 134,000 335,000 4R4037 A
280 200 200 2.5 2.5 1,250 3,350 127,000 340,000 4R4027 A
290 192 192 2.5 2.5 1,290 3,150 132,000 320,000 4R4041 A
290 192 192 2.5 2.5 1,230 3,350 126,000 340,000 4R4206 A
290 192 192 2.5 2.5 1,190 3,350 122,000 340,000 4R4413 A
300 160 160 2.5 2.5 1,000 2,590 102,000 264,000 4R4419 A
300 160 160 2.1 2.1 1,000 2,590 102,000 264,000 4R4445 C
310 192 192 2.5 2.5 1,350 3,550 138,000 360,000 4R4410 A
310 192 192 2.5 2.5 1,390 3,400 141,000 350,000 4R4426 A
310 204 204 2.5 2.5 1,420 3,750 144,000 385,000 4R4425 A
310 215 215 2.5 2.5 1,530 3,750 156,000 380,000 4R4420 A
310 225 225 2.5 2.5 1,480 3,950 151,000 405,000 4R4416 A
310 225 225 2.5 2.5 1,590 3,950 162,000 400,000 4R4449 A
320 160 160 3 3 1,190 2,550 121,000 260,000 4R4428 A
320 210 210 2.5 2.5 1,550 3,650 158,000 370,000 4R4429 A
320 210 210 2.5 2.5 1,560 3,600 159,000 370,000 4R4444 A
230
330 206 206 2.5 2.5 1,510 3,900 154,000 395,000 4R4610 A
330 206 206 2.5 2.5 1,520 3,800 155,000 385,000 4R4614 A
1 Drawing details are shown in Page B-38.
2 Minimal allowable dimension for chamfer dimension r or r1.
B-66