Description

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Spherical roller bearing, one-piece machined cage, groove and lubrication holes on outer ring, tapered bore 1:30

d280 mm
D420 mm
B140 mm
d2306 mm
D1376 mm
rs min4 mm
Number of lubrication holes8
b18 mm
k8 mm
e0.29
Y12.3
Y23.42
Y02.25
Radial clearance classC3
BrandNTN
Dynamic load, C2,620 kN
Static load, C04,060 kN
Nlim (oil)1,100 Tr/min
Nlim (grease)880 Tr/min
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax200 °C
Characteristic cage frequency, FTF0.45 Hz
Characteristic rolling element frequency, BSF8.97 Hz
Characteristic outer ring frequency, BPF011.15 Hz
Characteristic inner ring frequency, BPFI13.58 Hz
da min295 mm
Da max405 mm
ra max4 mm
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