Double row cylindrical roller bearing
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Double row cylindrical roller bearing
Designations
Principal dimensions(mm)
Basic load ratings(kN)
Speed ratings (rpm)
Other dimensions(mm)
Weight(kg)
d
B
r
Ew.Fw
dyc(Cr)
stc(Cor)
Grease
Oil
d1
D1
b
k
NN3030K
150
225
56
2.1
206
330
650
4000
3400
178.8
7.70
NN3030/YA8
150
225
56
2.1
206
330
650
4000
3400
178.8
7.75
NN3030
150
225
56
2.1
206
330
650
3200
2400
178.8
7.75
NN3030/C9
150
225
56
2.1
206
330
650
3200
2400
178.8
7.75
NN3030/C9YA8
150
225
56
2.1
206
330
650
3200
2400
178.8
7.75
NN3030K/C9W33
150
225
56
2.1
206
330
650
3200
2400
178.8
8.5
4.5
7.70
NN3030K/W33
150
225
56
2.1
206
330
650
3200
2400
178.8
8.5
4.5
7.70
NN3032K
160
240
60
2.1
219
345
675
3800
3200
190.2
8.4
NN3032KTN1
160
240
60
2.1
219
345
335
3000
3200
190.2
7.86
NN3032K/W33
160
240
60
2.1
219
345
675
3000
2200
190.2
8.5
4.5
8.38
NN3032K/C9W33YB2
160
240
60
2.1
219
345
675
3000
2200
190.2
8.39
NN3032K/YB2
160
240
60
2.1
219
345
675
3000
2200
190.2
8.5
4.5
8.38
NN3032
160
240
60
2.1
219
345
675
3000
2200
190.2
8.38
NN3034K
170
260
67
2.1
236
435
860
3600
3000
204
12.9
NN3034/YA8
170
260
67
2.1
236
435
860
3600
2200
204
13.3
NN3036K
180
280
74
2.1
255
555
1090
3400
2800
218.2
16.9
NN3036
180
280
74
2.1
255
555
1090
2800
2000
218.2
228
16.9
4382936
180
250
69
2.3
201
337
703
2800
2000
9.8
NN3038K
190
290
75
2.1
265
565
1140
3200
2600
228.2
17.9
NN3038K/W33
190
290
75
2.1
265
565
1140
2600
1900
228.2
15
6
17.1
NN3038
190
290
75
2.1
265
565
1140
2600
1900
228.2
236
18
NNU4938B-W33
190
260
69
3
212
560
1250
2600
1900
257
9.5
5
11
NNU6038
190
290
180
2.1
219
1260
3200
2600
1900
43.6
NN3040K
200
310
82
2.1
282
675
1340
3000
2400
242
22
NN3040
200
310
82
2.1
282
675
1340
2400
1900
242
22.1
NN3044K
220
340
90
3.0
310
795
1610
2800
2200
265.2
30.1
NN3444K/W33
220
340
90
3.0
310
795
1610
2200
1800
265.2
15
6
30.0
NN3044
220
340
90
3.0
310
795
1610
2200
1800
265.2
31.0
NN3048K
240
360
92
3.0
330
810
1690
2600
2000
285.2
32.7
NN3048
240
360
92
3.0
330
810
1690
2000
1700
285.2
31.6
482752U
260
360
80
2.1
292
605
1500
1600
1900
9.5
5
28.2
NN3056K
280
420
106
4.0
384
1060
2290
2200
1800
332.8
49.7
NN3056
280
420
106
4.0
384
1060
2290
1700
1400
332.8
52.3
3182160
300
460
118
4
418
1290
2790
1200
1500
360.4
76.2
3282160
300
460
118
4
418
1290
2790
1200
1500
360.4
77.9
NN3064/W33
320
480
121
4
438
1360
2910
1100
1400
377
424
17.7
8
76.3
482764
320
480
145
3.7
364
1650
3870
1100
1300
18
8
93.3
NNU49/500X2F1/YA34
500
670
160
5
554
2230
6800
750
1000
612
174
NNU49/530/HCW33
530
710
180
5
588
2660
7450
700
950
17.7
6
203
NN30/560K
560
820
195
6
755
3380
8170
600
850
658.4
337
31821/600
600
870
200
6
805
4050
9850
600
800
701
384.0
32821/600K
600
870
200
6
805
4050
9850
600
800
701
15
8
403
31821/630
630
920
212
7.5
850
4350
10600
550
750
738
438
32821/630K
630
920
212
7.5
850
4350
10600
550
750
738
15
8
460
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