Product Details

NTN  NNU4948K Multi-Row Roller Bearings  

Brand Name NTN 
Model Number NNU4948K
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

NTN  NNU4948K bearing Size Chart (mm/inches)

d40 mm
D80 mm
B23 mm
d250.2 mm
D170.8 mm
rs min1.1 mm
Number of lubrication holes3
b5.4 mm
k2.5 mm
e0.27
Y12.47
Y23.68
Y02.41
Radial clearance classCN
Mass0.52 kg
Dynamic load, C116 kN
Static load, C0105 kN
Fatigue limit load, Cu11 kN
Nref8,200 rpm
Nlim11,000 rpm
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax200 °C
Characteristic cage frequency, FTF0.42 Hz
Characteristic rolling element frequency, BSF5.62 Hz
Characteristic outer ring frequency, BPF06.64 Hz
Characteristic inner ring frequency, BPFI9.36 Hz
da min47 mm
Da max73 mm
ra max1 mm
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