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7203DF
Basic parameters
Angular contact ball bearings
Series
7203DF
Model
Main Size(mm)
17
d
40
D
12
B
24
2 B
0.6
r smin 2
0.3
r 1smin 2
Rated base load
12.0
Dynamic load Cr/kN
6.60
Static load Cor/kN
1,220
Dynamic load Cr/kgf
675
Static load Cor/kgf
Allowable speed(rpm)
19,000
Grease lubrication
26,000
Oil lubrication
7203
Bearing number
Point of action(mm)
14.5
a
Mass(kg)
0.064
Single column(about)
Rated base load
19.4
Dynamic load Cr/(双列) kN
13.2
Static load Cor/( Double column ) kN
1,980
Dynamic load Cr/( Double column ) kgf
1,350
Static load Cor/( Double column ) kgf
Allowable speed(rpm)( Double column )
15,000
Grease lubrication
21,000
Oil lubrication
Bearing number
DB
DB
DF
DF
DT
DT
Installation relationship size(mm)
21.5
da minmum
19.5
db minmum
35.5
Da maximum
37.5
Db maximum
0.6
r as maximun
0.3
r 1as maximun
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