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NJ309
Basic parameters
Cylindrical roller bearing
Series
NJ309
Model
Main Size(mm)
45
d
100
D
25
B
1.5
r smin 2
1.5
r1s min 2
Rated base load
74.0
Dynamic load Cr/kN
71.0
Static load Cor/kN
7,550
Dynamic load Cr/kgf
7,250
Static load Cor/kgf
Allowable speed(rpm)
7,200
Grease lubrication
8,400
Oil lubrication
Size(mm)
58.5
Fw maximum
86.5
Ew maximum
64
J minmum
Installation relationship size(mm)
53
d a minmum
53
d b minmum
57
d c maximum
60
d d minmum
66
d e minmum
92
D a maximum
92
D b maximum
89
D b minmum
1.5
r as maximum
1.5
r 1as maximum
Weight(about)kg
0.857
type NU/type N
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