Product Details

1000,000 mm x 1310,000 mm x 880,000 mm NTN 4R20001 cylindrical roller bearings

Brand Name NTN
Model Number 4R20001
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

NTN 4R20001 bearing Size Chart (mm/inches)

d20 mm
D37 mm
B9 mm
d125.9 mm
d224.7 mm
D131.1 mm
D233.6 mm
a8.3 mm
Contact angle α15 °
rs min0.3 mm
r1s min0.15 mm
f014.9
Precision classP42
Mass0.04 kg
Dynamic load, C7.65 kN
Static load, C04.9 kN
Nlim (oil)65,800 rpm
Nlim (grease)41,100 rpm
Preload levelGN
Preload value0.049 kN
Axial rigidity33.9 N/µm
Radial rigidity181.3 N/µm
Min operating temperature, Tmin-20 °C
Max operating temperature, Tmax120 °C
Characteristic cage frequency, FTF0.42 Hz
Characteristic rolling element frequency, BSF5.83 Hz
Characteristic outer ring frequency, BPF06.29 Hz
Characteristic inner ring frequency, BPFI8.71 Hz
da min22.5 mm
Da max34.5 mm
Db max35.8 mm
r1a max0.15 mm
ra max0.3 mm
D626.3 mm
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