Ball and Roller Bearings - Ntn-snr.com

Four-Row Cylindrical Roller Bearings
C1
C1
r
r1
r
r1
B1
B1
D
d
FW
D
d FW
d 200300mm
Drawing 1 Drawing 2
Boundary dimensions
Basic load ratings
dynamic static dynamic static
mm kN kgf
1
1
d D B 1 C 1 r s min r 1s min C r C or C r C or
200
210
220
230
240
250
260
270
280
290
300
290 192 192 2.5 2.5 1,290 3,150 132,000 320,000
320 216 216 3 3 1,750 3,650 179,000 375,000
290 192 192 2.5 2.5 1,230 3,350 126,000 340,000
290 192 192 2.5 2.5 1,190 3,350 122,000 340,000
300 160 160 2.5 2.5 1,000 2,590 102,000 264,000
310 192 192 2.5 2.5 1,390 3,400 141,000 350,000
310 204 204 2.5 2.5 1,420 3,750 144,000 385,000
310 215 215 2.5 2.5 1,530 3,750 156,000 380,000
310 225 225 2.5 2.5 1,480 3,950 151,000 405,000
310 265 265 2.5 2.5 1,630 4,500 167,000 460,000
320 160 160 3 3 1,190 2,550 121,000 260,000
320 210 210 2.5 2.5 1,550 3,650 158,000 370,000
330 206 206 2.5 2.5 1,520 3,800 155,000 385,000
340 260 260 3 3 2,050 5,100 209,000 520,000
330 220 220 3 3 1,490 4,150 152,000 420,000
340 220 220 3 3 1,670 4,200 170,000 425,000
360 220 220 2.5 2.5 1,760 4,050 179,000 415,000
350 220 220 3 3 1,730 4,300 176,000 440,000
370 220 220 3 3 1,760 4,450 179,000 455,000
380 280 280 3 3 2,420 6,250 247,000 635,000
380 280 280 2.5 2.5 2,580 6,850 263,000 700,000
390 220 220 3 3 1,780 4,650 181,000 475,000
390 275 275 2.5 2.5 2,290 6,250 233,000 635,000
420 280 280 4 4 2,430 6,150 248,000 630,000
410 240 240 3 3 2,240 5,550 228,000 565,000
420 300 300 3 3 2,830 7,500 288,000 765,000
400 300 300 3 3 2,480 7,500 253,000 765,000
420 240 240 3 3 2,020 5,450 206,000 555,000
420 300 300 3 3 2,720 7,600 278,000 775,000
420 300 300 3 3 2,900 7,850 295,000 800,000
1 Minimal allowable dimension for chamfer dimension r or r1. 2 Oil groove and oil inlet are in center of outer ring.
3 Oil groove and oil inlet not on outer ring spacer.
B-122