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Type NNU - Cylindrical bore
NTN Corporation
Ball and roller bearing
Cylindrical Roller Bearings
Multi-Row Cylindrical Roller Bearings
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CAD模型選擇
{ntn/ball_roller_bearings/cylindrical_roller_b/multy_row_cylindrical_rb/typennu_cb_asmtab.prj},{NB=NNU4944},{IDNR=MIN},{SD=220},{D=300},{B=80},{R=2.1},{ORDER=NNU4944},{CR=650},{COR=1300},{CU=118},{CRF=59 500},{CORF=132 000},{LSG=1 900},{LSO=2 200},{FW=245.0},{EW=281.0},{MASS=15.90},{DA1=231},{DB1=238},{DC=242},{DD=248},{DA=289},{DB2=289},{BB=284},{RAS=2},{VERS=1},{PPATH=mrnnu_cb_asmtpl.prj}
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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
SD
Inside Diameter
[mm]
D
Outside Diameter
[mm]
B
Width
[mm]
R
Radius
[mm]
ORDER
Bearing No.
ⁿ/ₐ
CR
Basic Load Ratings
[kN]
COR
Basic Static Load Rating
[kN]
CU
Fatigue load limit
[kN]
LSG
Limiting Speeds (Grease)
[min^-1]
LSO
Limiting Speeds (Oil)
[min^-1]
FW
Diameter
[mm]
MASS
mass
[kg]
NNU4920
100
140
40
1.1
NNU4920
145
260
30
4 300
5 100
113.0
1.83
NNU4921
105
145
40
1.1
NNU4921
147
268
30.5
4 100
4 800
118.0
1.91
NNU4922
110
150
40
1.1
NNU4922
152
284
32
3 900
4 600
123.0
1.99
NNU4924
120
165
45
1.1
NNU4924
203
360
39.5
3 600
4 200
134.5
2.75
NNU4926
130
180
50
1.5
NNU4926
244
440
47
3 300
3 900
146.0
3.69
NNU4928
140
190
50
1.5
NNU4928
251
470
49
3 000
3 600
156.0
3.94
NNU4930
150
210
60
2.0
NNU4930
380
690
70.5
2 800
3 300
168.5
6.18
NNU4932
160
220
60
2.0
NNU4932
395
740
74
2 600
3 100
178.5
6.53
NNU4934
170
230
60
2.0
NNU4934
400
765
75.5
2 500
2 900
188.5
6.87
NNU4936
180
250
69
2.0
NNU4936
510
965
93
2 300
2 700
202.0
9.90
NNU4938
190
260
69
2.0
NNU4938
525
1030
98
2 200
2 600
212.0
10.40
NNU4940
200
280
80
2.1
NNU4940
615
1180
110
2 100
2 400
225.0
14.70
NNU4944
220
300
80
2.1
NNU4944
650
1300
118
1 900
2 200
245.0
15.90
NNU4948
240
320
80
2.1
NNU4948
680
1410
126
1 700
2 000
265.0
17.20
NNU4952
260
360
100
2.1
NNU4952
1000
2070
179
1 600
1 800
292.0
29.60
NNU4956
280
380
100
2.1
NNU4956
1030
2200
187
1 400
1 700
312.0
31.60
NNU4960
300
420
118
3.0
NNU4960
1330
2800
231
1 300
1 500
339.0
48.60
NNU4964
320
440
118
3.0
NNU4964
1370
2970
242
1 200
1 400
359.0
51.40
NNU4968
340
460
118
3.0
NNU4968
1410
3150
252
1 100
1 300
379.0
54.20
NNU4972
360
480
118
3.0
NNU4972
1430
3250
255
1 100
1 300
398.0
57.00
NNU4976
380
520
140
4.0
NNU4976
1810
4050
315
1 000
1 200
425.0
84.50
NNU4980
400
540
140
4.0
NNU4980
1870
4300
325
940
1 100
445.0
88.20
NNU4984
420
560
140
4.0
NNU4984
1930
4500
340
900
1 100
465.0
92.00
NNU4988
440
600
160
4.0
NNU4988
2380
5550
410
850
1 000
492.0
127.00
NNU4992
460
620
160
4.0
NNU4992
2460
5850
430
800
950
512.0
132.00
F
P
1
2
N
E
Rows Per Page
25
50
75
100
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