Single Row Tapered Roller Bearings (Metric Series)

31317

Designation

DIN720 31317

ISO355 T7GB085

Boundary dimensions(mm)

d 85

D 180

B 41

C 28

T 44.5

r1,r2 min 4

r3,r4 min 3

a 55

Speed ratings

grease 1800

oil 2600

Load ratings[kN]

dyn Cr 255

stat Cor 305

Calculation factors

e 0.83

Y 0.73

Y0 0.4

Abutment and fillet dimensions(mm)

Da max 103

db min 99

Da min 143

Db min 169

Ca min 6

Cb min 16.5

Mass (kg) 4.9

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