DEMARK (Beijing) Automation Technology Co., Ltd.
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Needle Roller Bearing
> NA Series
NA Series
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Dimension and Parameters
Bearing Designation
Current Code :
NA4900
Original Code :
4524900
Shaft Diameter（mm） :
7
Weight(Kg) :
21
Boundary Dimensions(mm)
d :
10
Fw :
14
D :
22
C :
B :
13
Basic Load Rating(N)
Dynamic :
8000
Static :
9000
Limiting Speed(rpm)
Oil :
23700
