La description

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Tapered roller bearing, pressed steel cage

d240 mm
D320 mm
B51 mm
C39 mm
T51 mm
d1281.5 mm
a65.5 mm
rs min3 mm
r1s min2.5 mm
e0.46
Y21.31
Y00.72
Mass10.9 kg
ISO 355 referenceT4EC240
BrandNTN
Dynamic load, C490 kN
Rating life coefficient, A21
Static load, C01,000 kN
Fatigue limit load, Cu89.5 kN
Nlim (oil)1,200 Tr/min
Nlim (grease)940 Tr/min
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax120 °C
Characteristic cage frequency, FTF0.47 Hz
Characteristic rolling element frequency, BSF14.23 Hz
Characteristic outer ring frequency, BPF017.26 Hz
Characteristic inner ring frequency, BPFI19.74 Hz
da max254 mm
db min254 mm
Da min290 mm
Da max308 mm
Db min311 mm
Ca min10 mm
Cb min12 mm
ra max2.5 mm
r1a max2 mm
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