Four row cylindrical roller bearings
Four row cylindrical roller bearings have a low friction compared with other roller bearings. They have compact structures and high stiffness, and carry high radial loads, but can’t carry axial loads.
Four row cylindrical roller bearings are separable. Because of Inner rings with no ribs, inner and outer ring assembly can be mounted independently, this benefits for bearing mounting and maintenance.
They are the mainly used for rolling mills required high speed and precision. For example, the neck of rolling mill stands, wires mills, bar and shape mills, cold or hot sheet mills and cogging mills
Brass solid cages or pin-type cages are mainly used in four-row cylindrical roller bearings
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
90
140
70
105
1.5
1.1
222
454
FC182870
672718
4.4
140
74
105
1.5
1.1
222
454
FC182874
-
4.5
100
140
70
111
1.5
1.1
194
416
FC202870
672820
3.5
140
90
111
1.5
1.1
290
616
FC202890
-
4.3
140
104
111
1.5
1.1
335
730
FC2028104
672720
5.1
145
70
113
1.5
1.1
219
457
FC202970
672720K
4.1
150
106
113
1.5
1.1
347
736
FC2030106
-
6.8
110
150
80
122
1.5
1.1
241
602
FC223080
-
4.4
170
90
127
2
2
358
754
FC223490
-
7.9
170
120
127
2
2
605
1060
FC2234120
672722
10.6
210
170
136.5
2
2
923
1610
FC2242170
-
27.3
120
180
92
137
2
2
375
820
FC243692
-
8.7
180
105
135
2
2
612
927
FC2436105
672724
9.8
180
120
136
2
2
477
1061
FC2436120
-
11.2
130
200
104
149
2
2
478
1006
FC2640104
-
12.5
200
125
149
2
2
738
1220
FC2640125
672726
15
140
210
100
158
2
2
503
1096
FC2842100
-
12.8
210
106
158
2
2
503
1096
FC2842106
-
13.6
210
125
158
2
2
718
1365
FC2842125
672728
15.8
210
155
158
2
2
756
1774
FC2842155
-
19.6
145
210
155
166
2
2
720
1560
FC2942155
-
24.4
225
156
169
2
2
815
1660
FC2945156
672729
24.4
150
225
120
169
2
2
788
1586
FC3045120
-
17.5
225
150
169
2
2
865
1770
FC3045150
-
21
230
156
174
2
2
840
1760
FC3046156
672730
24.6
160
230
130
180
2
2
1040
1384
FC3246130
-
22.7
230
168
179
3
2
818
2218
FC3246168
-
24.2
240
124
183
2.1
2.1
690
1543
FC3248124
672732K
20.6
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
160
240
168
183
2.1
2.1
947
2310
FC3248168
672732
28
260
168
183
2.5
2.1
953
2326
FC3252168
-
38.2
170
230
130
188.5
2
2
680
1720
FC3446130
-
16.3
230
152
186
2
2
765
1790
FC3446152
-
17.4
230
180
186
2
2
707
2041
FC3446180
-
22.7
240
130
190
2
2
830
1830
FC3448130
-
19
250
170
192
2.1
2.1
1000
2400
FC3450170
672734H
29.9
260
120
195
2.1
2.1
863
1730
FC3452120
672734Y
24.2
260
150
195
2.1
2.1
860
1948
FC3452150
-
30.2
260
170
196
2.1
2.1
1080
2460
FC3452170
-
34.9
260
225
196
2.1
2.1
1270
3350
FC3452225
-
43.5
180
250
120
200
2.1
2.1
609
1583
FC3650120
-
19
250
156
200
2
2
710
1527
FC3650156
672836
24.7
260
120
202
2.5
2.1
693
860
FC3652120
-
20.2
260
124
202
2.1
2.1
718
1668
FC3652124
672736K
22.6
260
154
202
2.5
2.1
983
2200
FC3652154
-
28.2
260
160
202
2.1
2.1
893
2206
FC3652160
-
29.2
260
168
202
2.1
2.1
1060
2440
FC3652168
672736
30.7
260
180
202
2.1
2.1
1150
2560
FC3652180
-
32.9
280
180
207
2.1
2.1
1220
2580
FC3656180
-
43.4
190
260
168
212
2.1
2.1
1020
2600
FC3852168
-
27.9
265
124
213
2.1
2.1
816
1926
FC3853124
672838K
22.1
270
124
212
2.1
2.1
816
1925
FC3854124
-
24.2
270
168
212
2.1
2.1
1062
2798
FC3854168
672738K
32
270
200
212
2.1
2.1
1359
3350
FC3854200
672738
38.2
280
200
214
2.1
2.1
1540
3350
FC3856200
-
41.5
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
200
270
120
222
2.1
2.1
615
1626
FC4054120
-
20.8
270
170
222
2.1
2.1
985
2670
FC4054170
-
29.5
280
170
222
2.1
2.1
1130
2730
FC4056170
-
33
280
200
222
2.1
2.1
1359
2693
FC4056200
-
39.9
290
130
226
2.5
2.1
840
1975
FC4058130
-
29.9
290
192
226
2.1
2.1
1386
3250
FC4058192
672740
44.9
210
290
192
236
2.1
2.1
1300
3400
FC4258192
-
40.6
300
170
234
2.1
2.1
1031
2814
FC4260170
-
41.4
300
210
234
2.1
2.1
1300
3040
FC4260210
672742
50.3
220
300
192
242
2.1
2.1
1085
3310
FC4460192
-
41.5
310
157
246
2.1
2.1
1132
2627
FC4462157
-
39.7
310
190
246
2.1
2.1
1283
3503
FC4462190
-
47.2
310
192
246
2.1
2.1
1250
3070
FC4462192
672744
48.6
320
210
248
2.1
2.1
1321
3534
FC4462210
-
59.8
340
192
246
2.5
2.1
1599
3444
FC4468192
-
65.6
230
330
170
260
2.1
2.1
1142
2974
FC4666170
-
50.2
330
206
260
2.1
2.1
1470
3760
FC4666206
672746
60.8
365
250
266
3
3
2400
4900
FC4673250
-
100
240
330
220
264
2.1
2.1
1373
3789
FC4866220
672748
58.4
340
192
268
2.1
2.1
1219
3161
FC4868192
-
58
360
220
272
2.1
2.1
1600
4065
FC4872220
-
83
250
340
170
274
3
3
1141
3281
FC5068170
-
47.9
350
220
278
3
3
1350
3804
FC5070220
672750
70.2
360
160
282
3
3
1077
2781
FC5072160
-
57
360
220
282
3
3
1486
4210
FC5072220
-
78.5
260
360
192
287
3
3
1274
3468
FC5272192
-
62.3
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
260
360
200
288
3
3
1483
4217
FC5272200
-
64.9
360
204
287
2.1
2.1
1620
3990
FC5272204
-
63.5
370
200
292
3
3
1407
4057
FC5274200
-
74.2
370
220
292
3
3
1964
4650
FC5274220
672752
73.7
380
220
292
3
3
1516
4353
FC5276220
-
91.2
380
280
295
3
3
2250
5680
FC5276280
-
110
400
200
296
4
4
1795
4051
FC5280200
-
95.6
400
290
296
4
4
2710
7100
FC5280290
-
135
270
380
230
298
3
3
1725
4598
FC5476230
672754
85.3
400
220
305
3
3
1833
4570
FC5480220
-
100
280
375
200
307
3
3
1480
4311
FC5675200
672956
65.1
380
290
308
3
3
1888
5835
FC5676290
-
100
390
220
312
3
3
1600
4730
FC5678220
672756Q
86.2
390
240
312
3
3
1763
5235
FC5678240
-
93.4
390
275
308
3
1.1
2250
6500
FCD5678275
-
105.1
420
280
318
4
4
2430
6350
FCD5684280
-
143.4
290
410
240
320
4
4
2070
5670
FC5882240
672758
105
300
420
240
332
4
4
2060
5695
FC6084240
672760
107.8
420
240
332
4
4
2225
5750
FC6084240
-
107
420
300
332
3
3
2305
6565
FCD6084300
-
134.7
320
440
240
351
3
3
2120
6101
FC6488240
-
113.9
440
300
352
3
3
2530
7660
FCD6488300
-
142.3
450
240
355
4
4
2145
5860
FC6490240
672764
125.3
450
240
355
4
4
2145
5860
FCD6490240
-
125.3
460
280
357
3
3
2450
6534
FC6492280
-
159
460
340
360
3
3
2895
8105
FCD6492340
-
193.1
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
320
480
350
364
4
4
3790
10500
FCDP6496350
-
227
330
460
340
365
4
4
3760
8265
FCD6692340
-
175
340
450
250
368
3
3
2299
6312
FC6890250
-
111.2
450
250
368
3
3
2045
6134
FCD6890250
-
112.6
460
260
370
4
4
2132
5977
FC6892260
-
128.2
480
350
378
4
4
4270
9480
FCD6896350
-
207
350
500
380
389
5
5
4290
11700
FCD70100380
672770
242
520
300
401
5
5
3860
9000
FCD70104300
-
220
360
500
250
394
3
3
2940
6740
FCD72100250
-
143
510
370
399
4
4
4010
10700
FCD72102370
-
273
370
520
380
409
4
4
4900
10750
FCD74104380
672974
263
520
380
409
4
4
4160
12312
FCDP74104380
-
261
520
400
409
4
4
4140
11200
FCD74104400
-
267
540
400
415
4
4
3970
11240
FCD74108400
672774
322.4
380
540
380
422
4
4
3766
10930
FCD76108380
-
290.9
540
400
422
4
4
4800
12000
FCD76108400
672776
305
540
400
422
4
4
5140
14000
FCDP76108400
-
305
390
540
320
431
10×20°
2
4750
12200
FCDP78108320
-
230
550
310
430
11×20°
4
4600
11200
FCDP78110310
-
240
400
550
300
441
4
4
3510
9260
FCD80110300
-
214
560
350
445
5
5
3840
10400
FCD80112350
-
271
560
410
445
5
5
5790
15600
FCDP80112410
-
315
590
440
450
5
5
6630
16600
FCD80118440
-
415
410
560
400
450
14×20°
2
5790
16000
FCDP82112400
-
290
600
440
460
5
5
6880
17300
FCDP82120440
-
425
420
580
260
468
4
4
3960
9650
FCD84116260
-
210
580
320
463
4
4
4200
10800
FCD84116320
-
250
600
440
470
5
5
6270
18100
FCDP84120440
-
400
620
400
473
4
4
6230
15600
FCD84124400
-
430
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
440
620
450
487
5
5
6490
19600
FCDP88124450
-
440
650
355
494
12.5×20°
4
5162
14000
FCDP88130355
-
420
450
590
300
490
12×45°
4
3510
12000
FCDP90118300
-
247
460
650
424
510
12×20°
3
7000
18300
FCDP92130424
-
450
650
470
509
5
5
7900
22400
FCDP92130470
-
510
480
650
450
525
6
6
7420
21200
FCDP96130450
-
440
680
420
528
5
5
7500
19300
FCDP96136420
-
515
680
500
532
5
5
7323
24000
FCDP96136500
-
605
500
670
450
540
5
5
5343
17490
FCDP100134450
6728/500Y
460
680
405
550
6
6
5495
16570
FCD100136405
-
453
680
450
550
5
5
7420
22000
FCDP100136450
-
500
710
480
558
5
5
7920
21600
FCD100142480
-
610
720
400
558
6
3
7120
17600
FCD100144400
-
530
720
530
568
6
6
9720
19890
FCD100144530
-
755
510
680
500
560
7.5×20°
5
8070
26000
FCDP102136500
-
522
730
520
569
6
6
8560
22000
FCD102146520
-
750
760
550
570
16×20°
3
10800
26500
FCDP102152550
-
950
530
760
520
587
6
6
10530
28500
FCDP106152520
-
775
780
500
591
6
6
8410
20400
FCD106156500
-
805
780
570
595
6
6
11520
32500
FCDP106156570
-
960
550
740
510
600
6
6
7769
27000
FCDP110148510
-
615
800
520
612
6
6
10530
26500
FCDP110160520
-
895
800
560
610
6
6
10890
28000
FC110160560
-
930
570
750
530
622
5
5
6745
25200
FCD114150530
6727/570
662.5
600
820
575
660
6
6
11700
36000
FCDP120164575
-
910
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
600
870
540
672
20×20°
4
11800
31500
FCDP120174540
-
1100
870
640
682
6
6
13600
40000
FCDP120174640
-
1300
610
820
430
665
19×20°
3
8400
23600
FCDP122164430
-
650
650
900
650
704
7.5
7.5
15480
41500
FCDP130180650
-
1260
920
670
723
7.5
7.5
15480
46500
FCDP130184670
-
1450
660
820
440
702
7.5
4
6730
22800
FCD132164440
-
530
880
450
727
6
6
5546
23600
FCD132176450
-
785
680
940
600
743
4
4
16900
53400
FCDP136188600
-
1380
980
640
760
20×20°
4
13230
41800
FCDP136196640
-
1590
690
980
715
767.5
7.5
7.5
17820
51300
FCDP138196715
-
1780
980
750
766
7.5
7.5
17000
53000
FCDP138196750
-
1880
700
930
620
763
18×20°
7.5
11600
40850
FCDP140186620
-
1180
980
700
774
6
6
17800
48200
FCDP140196700
-
1720
710
1000
715
787.5
7.5
7.5
15400
53200
FCDP142200715
-
1860
730
940
500
780
3
3
10150
42500
FCDP146188500
-
1000
960
620
790
20×20°
7.5
11800
48750
FCDP146192620
-
1220
1030
750
809
7.5
7.5
16000
55500
FCDP146206750
-
2040
750
1000
500
816
6
6
9460
32000
FCD150200500
-
1150
1000
670
813
7.5
7.5
13500
47500
FCDP150200670
-
1480
780
1070
780
853
25×20°
7.5
17200
57900
FCDP156214780
-
2300
800
1080
700
878
7.5
7.5
15200
55500
FCDP160216700
-
1950
1150
850
905
7.5
7.5
21000
76600
FCDP160230850
-
3150
820
1130
800
903
7.5
7.5
18600
64600
FCDP164226800
-
2540
850
1150
840
928
7.5
7.5
19600
72009
FCDP170230840
-
2570
1180
850
940
7.5
7.5
20100
72700
FCDP170236850
-
2850
Boundary dimensions
Basic load ratings
Designations
Mass
mm
kN
Current
Original
kg
d
D
B
Fw
rmin
r1min
Cr
Cor
850
1220
900
940
5
5
23000
84000
FCDP170244900
-
3720
900
1220
840
989
24×20°
7.5
20300
76000
FCDP180244840
-
3060
1280
930
1000
25×20°
7.5
25300
88350
FCDP180256930
-
4080
950
1300
850
1044
5
5
22168
81318
FCDP190260850
6727/950Y
3505
1360
975
1075
26×20°
7.5
26200
90000
FCDP190272975
-
4900
1360
1000
1058
22×20°
7.5
29200
99000
FCDP1902721000
-
5020
980
1310
880
1061.7
20×20°
7.5
22000
82000
FCDP196262880
-
3310
1000
1360
800
1084
23×20°
7.5
22000
80000
FCDP200272800
-
3560
1040
1440
1000
-
27×20°
7.5
34200
51300
FCDP2082881000
-
5100
1200
1590
1050
1305
30×20°
7.5
37620
120600
FCDP2403181050
-
5970
1300
1655
880
1391
7.5
7.5
33660
109800
FCDP260331880
-
4800
1350
1765
1360
1457
42×20°
9
36180
109800
FCDP2703531360
-
9100
1400
1780
1200
1493
40×20°
9
47070
146700
FCDP2803561200
-
7400
1400
1900
1360
1521
40×20°
9
55440
164700
FCDP2803601360
-
11300
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