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 :
NA4838
Original Code :
Shaft Diameter（mm） :
190
Weight(Kg) :
5600
Boundary Dimensions(mm)
d :
190
Fw :
210
D :
240
C :
B :
50
Basic Load Rating(N)
Dynamic :
227000
Static :
690000
Limiting Speed(rpm)
Oil :
2300
