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NJ1000 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.
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
≈
NJ1005
25
47
12
0.6
0.3
15.1
14.1
16,000
19,000
0.092
NJ1006
30
55
13
1
0.6
19.7
19.6
14,000
16,000
0.13
NJ1007
35
62
14
1
0.6
22.6
23.2
12,000
15,000
0.179
NJ1008
40
68
15
1
0.6
27.3
29
11,000
13,000
0.22
NJ1009
45
75
16
1
0.6
31
34
9,900
12,000
0.28
NJ1010
50
80
16
1
0.6
32
36
8,900
11,000
0.295
NJ1011
55
90
18
1.1
1
37.5
44
8,200
9,700
0.442
NJ1012
60
95
18
1.1
1
40
48.5
7,500
8,800
0.474
NJ1013
65
100
18
1.1
1
41
51
7,000
8,200
0.485
NJ1014
70
110
20
1.1
1
58.5
70.5
6,500
7,600
0.699
NJ1015
75
115
20
1.1
1
60
74.5
6,100
7,100
0.738
NJ1016
80
125
22
1.1
1
72.5
90.5
5,700
6,700
0.98
NJ1017
85
130
22
1.1
1
74.5
95.5
5,400
6,300
1.03
NJ1018
90
140
24
1.5
1.1
88
114
5,100
5,900
1.33
NJ1019
95
145
24
1.5
1.1
90.5
120
4,800
5,600
1.4
NJ1020
100
150
24
1.5
1.1
93
126
4,600
5,400
1.45
NJ1021
105
160
26
2
1.1
105
142
4,300
5,100
1.84
NJ1022
110
170
28
2
1.1
131
174
4,100
4,800
2.33
NJ1024
120
180
28
2
1.1
139
191
3,800
4,400
2.44
NJ1026
130
200
33
2
1.1
172
238
3,400
4,000
3.69
NJ1028
140
210
33
2
1.1
176
250
3,200
3,800
4.05
NJ1030
150
225
35
2.1
1.5
202
294
3,000
3,500
4.77

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