DEMARK (Beijing) Automation Technology Co., Ltd.
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Needle Roller Bearing
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NA Series
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Dimension and Parameters
Bearing Designation
Current Code :
NA4916
Original Code :
4544916
Shaft Diameter（mm） :
80
Weight(Kg) :
870
Boundary Dimensions(mm)
d :
80
Fw :
90
D :
110
C :
B :
30
Basic Load Rating(N)
Dynamic :
81000
Static :
170500
Limiting Speed(rpm)
Oil :
5500
