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7821CDF
Basic parameters
Angular contact ball bearings
Series
7821CDF
Model
Main Size(mm)
105
d
130
D
13
B
26
2 B
1
r smin 2
0.6
r 1smin 2
Rated base load
24.1
Dynamic load Cr/kN
29.8
Static load Cor/kN
2,460
Dynamic load Cr/kgf
3,050
Static load Cor/kgf
Allowable speed(rpm)
6,900
Grease lubrication
9,200
Oil lubrication
7821C
Bearing number
Point of action(mm)
22
a
Mass(kg)
0.31
Single column(about)
Rated base load
39.0
Dynamic load Cr/(双列) kN
59.5
Static load Cor/( Double column ) kN
4,000
Dynamic load Cr/( Double column ) kgf
6,050
Static load Cor/( Double column ) kgf
Allowable speed(rpm)( Double column )
5,500
Grease lubrication
7,300
Oil lubrication
Bearing number
DB
DB
DF
DF
DT
DT
Installation relationship size(mm)
110.5
da minmum
124.5
Da maximum
125.5
r as maximun
1
Db maximum
0.6
r 1as maximun
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