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7208BDB
Basic parameters
Angular contact ball bearings
Series
7208BDB
Model
Main Size(mm)
40
d
80
D
18
B
36
2 B
1.1
r smin 2
0.6
r 1smin 2
Rated base load
32.0
Dynamic load Cr/kN
23.0
Static load Cor/kN
3,250
Dynamic load Cr/kgf
2,340
Static load Cor/kgf
Allowable speed(rpm)
8,300
Grease lubrication
11,000
Oil lubrication
7208B
Bearing number
Point of action(mm)
34
a
Mass(kg)
0.375
Single column(about)
Rated base load
52.0
Dynamic load Cr/(双列) kN
46.0
Static load Cor/( Double column ) kN
5,300
Dynamic load Cr/( Double column ) kgf
4,700
Static load Cor/( Double column ) kgf
Allowable speed(rpm)( Double column )
6,700
Grease lubrication
8,900
Oil lubrication
Bearing number
DB
DB
DF
DF
DT
DT
Installation relationship size(mm)
47
da minmum
44.5
db minmum
73
Da maximum
75.5
Db maximum
1
r as maximun
0.6
r 1as maximun
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