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7211DT
Basic parameters
Angular contact ball bearings
Series
7211DT
Model
Main Size(mm)
55
d
100
D
21
B
42
2 B
1.5
r smin 2
1
r 1smin 2
Rated base load
51.0
Dynamic load Cr/kN
39.5
Static load Cor/kN
5,200
Dynamic load Cr/kgf
4,050
Static load Cor/kgf
Allowable speed(rpm)
7,100
Grease lubrication
9,500
Oil lubrication
7211
Bearing number
Point of action(mm)
33
a
Mass(kg)
0.6
Single column(about)
Rated base load
83.0
Dynamic load Cr/(双列) kN
79.0
Static load Cor/( Double column ) kN
8,450
Dynamic load Cr/( Double column ) kgf
8,050
Static load Cor/( Double column ) kgf
Allowable speed(rpm)( Double column )
5,700
Grease lubrication
7,600
Oil lubrication
Bearing number
DB
DB
DF
DF
DT
DT
Installation relationship size(mm)
63.5
da minmum
60.5
db minmum
91.5
Da maximum
94.5
Db maximum
1.5
r as maximun
1
r 1as maximun
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