Descrizione

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Spherical roller bearing, with central rib on inner ring, 2-part machined cage centred on inner ring, groove and lubrication holes on outer ring, tapered bore 1:12

d420 mm
D760 mm
B272 mm
d2528 mm
D1642.7 mm
rs min7.5 mm
Number of lubrication holes8
b33 mm
k20 mm
Associated sleeve referenceH3284
e0.36
Y11.86
Y22.77
Y01.82
Radial clearance classCN
BrandNTN
Dynamic load, C6,550 kN
Static load, C012,000 kN
Fatigue limit load, Cu800 kN
Nref0 Tr/min
Nlim0 Tr/min
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax120 °C
Characteristic cage frequency, FTF0.43 Hz
Characteristic rolling element frequency, BSF6.95 Hz
Characteristic outer ring frequency, BPF08.2 Hz
Characteristic inner ring frequency, BPFI10.8 Hz
da min452 mm
db min449 mm
Ce min16 mm
Da max728 mm
ra max6 mm
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