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Type NNU - Tapered bore, taper 1:12
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_tb_asmtab.prj},{NB=NNU4944K},{IDNR=MIN},{SD=220},{D=300},{B=80},{R=2.1},{R1=2},{ORDER=NNU4944K},{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=15.20},{DA1=231},{DB1=238},{DC=242},{DD=248},{DA=289},{DB2=289},{BB=284},{VERS=2},{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]
R1
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]
NNU4920K
100
140
40
1.1
1
NNU4920K
145
260
30
4 300
5 100
113.0
1.75
NNU4921K
105
145
40
1.1
1
NNU4921K
147
268
30.5
4 100
4 800
118.0
1.82
NNU4922K
110
150
40
1.1
1
NNU4922K
152
284
32
3 900
4 600
123.0
1.90
NNU4924K
120
165
45
1.1
1
NNU4924K
203
360
39.5
3 600
4 200
134.5
2.63
NNU4926K
130
180
50
1.5
1,5
NNU4926K
244
440
47
3 300
3 900
146.0
3.52
NNU4928K
140
190
50
1.5
1,5
NNU4928K
251
470
49
3 000
3 600
156.0
3.76
NNU4930K
150
210
60
2.0
2
NNU4930K
380
690
70.5
2 800
3 300
168.5
5.90
NNU4932K
160
220
60
2.0
2
NNU4932K
395
740
74
2 600
3 100
178.5
6.23
NNU4934K
170
230
60
2.0
2
NNU4934K
400
765
75.5
2 500
2 900
188.5
6.55
NNU4936K
180
250
69
2.0
2
NNU4936K
510
965
93
2 300
2 700
202.0
9.46
NNU4938K
190
260
69
2.0
2
NNU4938K
525
1030
98
2 200
2 600
212.0
9.94
NNU4940K
200
280
80
2.1
2
NNU4940K
615
1180
110
2 100
2 400
225.0
14.00
NNU4944K
220
300
80
2.1
2
NNU4944K
650
1300
118
1 900
2 200
245.0
15.20
NNU4948K
240
320
80
2.1
2
NNU4948K
680
1410
126
1 700
2 000
265.0
16.40
NNU4952K
260
360
100
2.1
2
NNU4952K
1000
2070
179
1 600
1 800
292.0
28.30
NNU4956K
280
380
100
2.1
2
NNU4956K
1030
2200
187
1 400
1 700
312.0
30.20
NNU4960K
300
420
118
3.0
2,5
NNU4960K
1330
2800
231
1 300
1 500
339.0
46.40
NNU4964K
320
440
118
3.0
2,5
NNU4964K
1370
2970
242
1 200
1 400
359.0
49.10
NNU4968K
340
460
118
3.0
2,5
NNU4968K
1410
3150
252
1 100
1 300
379.0
51.70
NNU4972K
360
480
118
3.0
2,5
NNU4972K
1430
3250
255
1 100
1 300
398.0
54.40
NNU4976K
380
520
140
4.0
3
NNU4976K
1810
4050
315
1 000
1 200
425.0
80.60
NNU4980K
400
540
140
4.0
3
NNU4980K
1870
4300
325
940
1 100
445.0
84.10
NNU4984K
420
560
140
4.0
3
NNU4984K
1930
4500
340
900
1 100
465.0
87.70
NNU4988K
440
600
160
4.0
3
NNU4988K
2380
5550
410
850
1 000
492.0
121.00
NNU4992K
460
620
160
4.0
3
NNU4992K
2460
5850
430
800
950
512.0
126.00
F
P
1
2
N
E
Rows Per Page
25
50
75
100
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