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7308DB
Basic parameters
Angular contact ball bearings
Series
7308DB
Model
Main Size(mm)
40
d
90
D
23
B
46
2 B
1.5
r smin 2
1
r 1smin 2
Rated base load
49.0
Dynamic load Cr/kN
33.0
Static load Cor/kN
5,000
Dynamic load Cr/kgf
3,350
Static load Cor/kgf
Allowable speed(rpm)
8,600
Grease lubrication
12,000
Oil lubrication
7308
Bearing number
Point of action(mm)
30.5
a
Mass(kg)
0.625
Single column(about)
Rated base load
79.5
Dynamic load Cr/(双列) kN
66.0
Static load Cor/( Double column ) kN
8,100
Dynamic load Cr/( Double column ) kgf
6,700
Static load Cor/( Double column ) kgf
Allowable speed(rpm)( Double column )
6,900
Grease lubrication
9,200
Oil lubrication
Bearing number
DB
DB
DF
DF
DT
DT
Installation relationship size(mm)
48.5
da minmum
45.5
db minmum
81.5
Da maximum
84.5
Db maximum
1.5
r as maximun
1
r 1as maximun
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