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NU200 Series


Cylindrical roller bearings provide the highest possible radial load capacity compared to other roller bearing types. Four primary styles are available to meet a variety of application requirements.
The rollers of Cylindrical roller bearings are a key component. Their geometry, the so-called logarithmic profile, provides an optimum stress distribution in the contact zones in the bearing. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. The benefits derived from this compared with traditional designs include enhanced operational reliability and a greater insensitivity to misalignment.
One-row, or single-row, caged Cylindrical roller bearings are available in six primary designs. Inside and outside ring configurations vary to accommodate different application designs.
Two-row, or double-row, Cylindrical roller bearings offer added radial capacity over traditional one-row types.
Four-row Cylindrical roller bearings have an extremely high radial load capacity, but no thrust capacity. This bearing type is mostly used in roll neck and work roll applications in the metal rolling industry.
Full complement Cylindrical roller bearings meet the need for increased radial load carrying capacity by maximizing the number of rollers in a given envelope.
6.3
WGD 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
≈
NU204E
20
47
14
1
0.6
25.7
22.6
15,000
18,000
0.122
NU205E
25
52
15
1
0.6
29.3
27.7
13,000
15,000
0.151
NU206E
30
62
16
1
0.6
39
37.5
11,000
13,000
0.226
NU207E
35
72
17
1.1
0.6
50.5
50
9,500
11,000
0.327
NU208
40
80
18
1.1
1.1
43.5
43
9,400
11,000
0.378
NU208E
40
80
18
1.1
1.1
55.5
55.5
8,500
10,000
0.426
NU209
45
85
19
1.1
1.1
46
47
8,400
9,900
0.432
NU209E
45
85
19
1.1
1.1
63
66.5
7,600
9,000
0.495
NU210
50
90
20
1.1
1.1
48
51
7,600
9,000
0.47
NU210E
50
90
20
1.1
1.1
66
72
6,900
8,100
0.54
NU211
55
100
21
1.5
1.1
58
62.5
6,900
8,200
0.638
NU211E
55
100
21
1.5
1.1
82.5
93
6,300
7,400
0.718
NU212
60
110
22
1.5
1.5
68.5
75
6,400
7,600
0.818
NU212E
60
110
22
1.5
1.5
97.5
107
5,800
6,800
0.923
NU213
65
120
23
1.5
1.5
84
94.5
5,900
7,000
1.02
NU213E
65
120
23
1.5
1.5
108
119
5,400
6,300
1.21
NU214
70
125
24
1.5
1.5
83.5
95
5,500
6,500
1.12
NU214E
70
125
24
1.5
1.5
119
137
5,000
5,900
1.3
NU215
75
130
25
1.5
1.5
96.5
111
5,100
6,000
1.23
NU215E
75
130
25
1.5
1.5
130
156
4,700
5,500
1.41
NU216
80
140
26
2
2
106
122
4,800
5,700
1.5
NU216E
80
140
26
2
2
139
167
4,400
5,100
1.67
NU217
85
150
28
2
2
120
140
4,500
5,300
1.87
NU217E
85
150
28
2
2
167
199
4,100
4,800
2.11
NU218
90
160
30
2
2
152
178
4,300
5,000
2.3
NU218E
90
160
30
2
2
182
217
3,900
4,600
2.44
NU219
95
170
32
2.1
2.1
166
195
4,000
4,700
2.78
NU219E
95
170
32
2.1
2.1
220
265
3,600
4,300
3.02
NU220
100
180
34
2.1
2.1
183
217
3,800
4,500
3.33
NU220E
100
180
34
2.1
2.1
249
305
3,500
4,100
3.66
NU221
105
190
36
2.1
2.1
201
241
3,600
4,300
3.95
NU222
110
200
38
2.1
2.1
240
290
3,400
4,000
4.63
NU224
120
215
40
2.1
2.1
260
320
3,200
3,700
5.57
NU224E
120
215
40
2.1
2.1
335
420
2,900
3,400
5.97
NU226
130
230
40
3
3
270
340
2,900
3,400
NU226E
130
230
40
3
3
365
455
2,600
3,100
6.9
NU228
140
250
42
3
3
310
400
2,700
3,100
7.88
NU228E
140
250
42
3
3
395
515
2,400
2,800
8.73
NU230
150
270
45
3
3
345
435
2,500
2,900
9.92
NU230E
150
270
45
3
3
450
595
2,200
2,600
11

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