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NNU Cylindrical bore
JTEKT Corporation(Koyo)
Cylindrical roller bearings
Double-row cylindrical roller bearings
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CAD模型選擇
{koyo/cylindrical_roller_bearings/double_row_crb/double_row_crb_nnu_asmtab.prj},{NB=NNU4944},{SERIES=CC},{T=50},{VERS=1.000},{SD=220},{D=300},{B=80},{R=2.1},{ORDER=NNU4944},{NG=1700},{NO=2000},{SR=3.0},{DW=18},{PCD=262.0},{L=26},{ID=250.00},{OD=273.00},{IPOP=12.00},{ST=8-B},{NUM=34},{PPATH=double_row_crb_asmtpl.prj}
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取消
F
P
1
2
N
E
Rows Per Page
25
50
75
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
LINA
明細表
SERIES
ⁿ/ₐ
SD
Inside Diameter
[mm]
D
Outside Diameter
[mm]
B
Bearing Width
[mm]
R
Radius
[mm]
ORDER
Bearing No.
ⁿ/ₐ
CR
Basic dynamic load rating
[kN]
COR
Basic static load rating
[kN]
CU
Fatigue limit load
[kN]
NG
Limiting speeds (Grease)
[rpm]
NO
Limiting speeds (Oil)
[rpm]
NNU4920
CC
100
140
40
1.1
NNU4920
139
258
32.9
4000
4800
NNU4921
CC
105
145
40
1.1
NNU4921
196
306
40.2
3900
4600
NNU4922
CC
110
150
40
1.1
NNU4922
163
326
42.4
3700
4500
NNU4924
CC
120
165
45
1.1
NNU4924
187
373
47.6
3400
4000
NNU4926
CC
130
180
50
1.5
NNU4926
216
428
50.2
3100
3700
NNU4928
CC
140
190
50
1.5
NNU4928
222
456
52.5
2900
3500
NNU4930
CC
150
210
60
2.0
NNU4930
343
692
80.7
2600
3100
NNU4932
CC
160
220
60
2.0
NNU4932
340
695
79.8
2500
3000
NNU4934
CC
170
230
60
2.0
NNU4934
361
763
86.4
2300
2800
NNU4936
CC
180
250
69
2.0
NNU4936
572
964
117
2100
2600
NNU4938
CC
190
260
69
2.0
NNU4938
465
996
119
2000
2400
NNU4940
CC
200
280
80
2.1
NNU4940
509
1 050
125
1900
2300
NNU4944
CC
220
300
80
2.1
NNU4944
561
1 220
145
1700
2000
NNU4948
CC
240
320
80
2.1
NNU4948
588
1 340
155
1600
1900
NNU4952
CC
260
360
100
2.1
NNU4952
941
2 050
228
1400
1700
NNU4956
CC
280
380
100
2.1
NNU4956
976
2 200
239
1300
1500
NNU4960
CC
300
420
118
3.0
NNU4960
1 170
2 720
285
1100
1300
NNU4964
CC
320
440
118
3.0
NNU4964
1530
2750
286
1100
1300
NNU4968
CC
340
460
118
3.0
NNU4968
1 270
2 930
301
990
1200
NNU4972
CC
360
480
118
3.0
NNU4972
1 340
3 050
314
920
1100
NNU4984
CC
420
560
140
4.0
NNU4984
1 670
4 290
413
730
880
NNU4988
CC
440
600
160
4.0
NNU4988
2 060
5 000
477
660
800
NNU4992
CC
460
620
160
4.0
NNU4992
2 250
5 440
516
630
760
NNU49/560
CC
560
750
190
5.0
NNU49/560
3 190
7 940
714
450
540
NNU49/600
CC
600
800
200
5.0
NNU49/600
3 500
8 630
762
400
480
F
P
1
2
N
E
Rows Per Page
25
50
75
100
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建議
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