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Metallurgy & Mine Bearings > Double row cylindrical roller bearings


Designation
Old code.
Principal Dimensions(mm)
Weight
(KG)
d
D
B
rsmin
r2smin
NNU4944
4482944
220
300
80
2.1
2.1
17
NNU4944K
4382944
220
300
80
2.1
2.1
16.5
NN3044
3282144
220
340
90
3
3
31
NN3044K
3182144
220
340
90
3
3
30.5
NNU4144
-
220
370
150
4
4
66
NNU4144K
-
220
370
150
4
4
65
NNU4848
-
240
300
60
1.1
1.1
10
NNU4848K
-
240
300
60
1.1
1.1
9.8
NNU4948
4482948
240
320
80
2.1
2.1
18
NNU4948K
4382948
240
320
80
2.1
2.1
17.5
NN3048
3282148
240
360
92
3
3
32
NN3048K
3182148
240
360
92
3
3
31.5
NNU4148
-
240
400
160
4
4
86
NNU4148K
-
240
400
160
4
4
85
NNU4952
4482952
260
360
100
2.1
2.1
30
NNU4952K
4382952
260
360
100
2.1
2.1
29
NN3052
3282152
260
400
104
4
4
48
NN3052K
3182152
260
400
104
4
4
47
NNU4052
-
260
400
140
4
4
64
NNU4052K
-
260
400
140
4
4
63.5
NNU44152
-
260
440
180
4
4
112
NNU4152K
-
260
440
180
4
4
110
NNU4856
-
280
350
69
1.1
2
16
NNU4856K
-
280
350
69
1.1
2
15.5
NNU4956
4482956
280
380
100
2.1
2.1
33
NNU4956K
4382956
280
380
100
2.1
2.1
32.5
NN3056
3282156
280
420
106
4
4
50
NN3056K
3182156
280
420
106
4
4
49.5
NNU4056
-
280
420
140
4
4
67
NNU4056K
-
280
420
140
4
4
66.5
NNU4156
-
280
460
180
5
5
122
NNU4156K
-
280
460
180
5
5
120
NNU4860
-
300
380
80
1.5
2.1
22.5
NNU4860K
-
300
380
80
1.5
2.1
22
NNU4960
4482960
300
420
118
3
3
51
NNU4960K
4382960
300
420
118
3
3
50
NN3060
3282160
300
460
118
4
4
70
NN3060K
3182160
300
460
118
4
4
68.5
NNU4060
-
300
460
160
4
4
97
NNU4060K
-
300
460
160
4
4
96
NNU4160
-
300
500
200
5
5
157
NU4160K
-
300
500
200
5
5
155

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