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NU300 Series  

                                                                                                                       

Bearing No.
Boundary dimensions
Basic load rating(kN)
Limiting speeds
Mass
mm
Dynamic
Static
rpm
Kg
d
D
B
rs min
rs1 min
Cr
Cor
Grease
Oil
NU304E
20
52
15
1.1
0.6
31.5
26.9
13,000
15,000
0.176
NU305E
25
62
17
1.1
1.1
41.5
37.5
11,000
13,000
0.275
NU306E
30
72
19
1.1
1.1
53
50
9,300
11,000
0.398
NU307E
35
80
21
1.5
1.1
71
71
8,100
9,600
0.545
NU308
40
90
23
1.5
1.5
58.5
57
8,000
9,400
0.658
NU308E
40
90
23
1.5
1.5
83
81.5
7,200
8,500
0.754
NU309
45
100
25
1.5
1.5
74
71
7,200
8,400
0.877
NU309E
45
100
25
1.5
1.5
97.5
98.5
6,500
7,600
0.996
NU310
50
110
27
2
2
87
86
6,500
7,700
1.14
NU310E
50
110
27
2
2
110
113
5,900
6,900
1.3
NU311
55
120
29
2
2
111
111
5,900
7,000
1.45
NU311E
55
120
29
2
2
137
143
5,300
6,300
1.65
NU312
60
130
31
2.1
2.1
124
126
5,500
6,500
1.8
NU312E
60
130
31
2.1
2.1
150
157
4,900
5,800
2.05
NU313
65
140
33
2.1
2.1
135
139
5,100
6,000
2.23
NU313E
65
140
33
2.1
2.1
181
191
4,600
5,400
2.54
NU314
70
150
35
2.1
2.1
158
168
4,700
5,500
2.71
NU314E
70
150
35
2.1
2.1
205
222
4,200
5,000
3.1
NU315
75
160
37
2.1
2.1
190
205
4,400
5,200
3.28
NU315E
75
160
37
2.1
2.1
240
263
4,000
4,700
3.74
NU316
80
170
39
2.1
2.1
190
207
4,100
4,800
3.86
NU316E
80
170
39
2.1
2.1
256
282
3,700
4,400
4.22
NU317
85
180
41
3
3
212
228
3,900
4,600
4.54
NU317E
85
180
41
3
3
291
330
3,500
4,100
4.81
NU318
90
190
43
3
3
240
265
3,700
4,300
5.3
NU318E
90
190
43
3
3
315
355
3,300
3,900
5.72
NU319
95
200
45
3
3
259
285
3,400
4,000
6.13
NU319E
95
200
45
3
3
335
385
3,100
3,600
6.62
NU320
100
215
47
3
3
299
335
3,300
3,800
7.49
NU320E
100
215
47
3
3
380
425
2,900
3,500
8.57
NU321
105
225
49
3
3
320
360
3,100
3,700
8.53
NU322
110
240
50
3
3
360
400
3,000
3,500
10
NU322E
110
240
50
3
3
450
525
2,700
3,100
11.1
NU324
120
260
55
3
3
450
510
2,700
3,200
12.8
NU324E
120
260
55
3
3
530
610
2,400
2,800
13.9
NU326
130
280
58
4
4
560
665
2,500
2,900
17.4
NU326E
130
280
58
4
4
615
735
2,200
2,600
19.4
NU328
140
300
62
4
4
615
745
2,300
2,700
21.2
NU328E
140
300
62
4
4
665
795
2,100
2,400
23.2
NU330
150
320
65
4
4
665
805
2,100
2,500
25.3
NU330E
150
320
65
4
4
760
920
1,900
2,300
28.4

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