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Products >
Rolling
>
Cylindrical roller bearings
Four-point contact ball bearings
QJ 3
Bearing number
Dimensions
£¨mm£©
Basic load ratings (KN)
Limiting speed (r/min)
Mass (Kg)
TCB
d
D
B
r
min
a
Cr
Cor
Grease
Oil
QJ303
17
47
14
1.0
22
23.4
15.0
12000
17000
0.14
QJ304
20
52
15
1.1
25
29.6
20.0
10000
15000
0.18
QJ306
30
72
19
1.1
36
49.4
39.0
7500
10000
0.42
QJ307
35
80
21
1.5
40
59.2
46.5
7000
9500
0.57
QJ308
40
90
23
1.5
46
71.5
58.5
6300
8500
0.78
QJ309
45
100
25
1.5
51
93.6
76.5
5600
7500
1.05
QJ310
50
110
27
2.0
56
111
91.5
5000
6700
1.35
QJ311
55
120
29
2.0
61
127
108
4500
6000
1.75
QJ312
60
130
31
2.1
67
146
125
4300
5600
2.15
QJ313
65
140
33
2.1
72
165
146
4000
5300
2.70
QJ314
70
150
35
2.1
77
186
166
3600
4800
3.15
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