Single Row Tapered Roller Bearings (Metric Series)

30308

Designation

DIN720 30308

ISO355 T2FB040

Boundary dimensions(mm)

d 40

D 90

B 23

C 20

T 25.25

r1,r2 min 2

r3,r4 min 1.5

a 20

Speed ratings

grease 4300

oil 5600

Load ratings[kN]

dyn Cr 91.5

stat Cor 102

Calculation factors

e 0.35

Y 1.74

Y0 0.96

Abutment and fillet dimensions(mm)

Da max 52

db min 49

Da min 77

Db min 82

Ca min 3

Cb min 5

Mass (kg) 0.77

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