La description

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Tapered roller bearing, pressed steel cage

d180 mm
D320 mm
B52 mm
C43 mm
T57 mm
d1244.5 mm
a63 mm
rs min5 mm
r1s min4 mm
e0.45
Y21.33
Y00.73
Mass17.7 kg
ISO 355 referenceT4GB180
BrandNTN
Dynamic load, C630 kN
Rating life coefficient, A21
Static load, C0890 kN
Fatigue limit load, Cu82.4 kN
Nlim (oil)1,400 Tr/min
Nlim (grease)1,100 Tr/min
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax120 °C
Characteristic cage frequency, FTF0.43 Hz
Characteristic rolling element frequency, BSF7.15 Hz
Characteristic outer ring frequency, BPF09.12 Hz
Characteristic inner ring frequency, BPFI11.88 Hz
da max211 mm
db min202 mm
Da min274 mm
Da max302 mm
Db min297 mm
Ca min9 mm
Cb min14 mm
ra max4 mm
r1a max3 mm
"''