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SKF 71808 ACD/P4 Bearing

Bearing 71808 ACD/P4Bearing 71808 ACD/P4

Bearing number : 71808 ACD/P4

Size (mm) : 40x52x7

Brand : SKF

Bore Diameter (mm) : 40

Outer Diameter (mm) : 52

Width (mm) : 7

Bearing dimensions and specification in SKF catalogue:

d - 40 mm

D - 52 mm

B - 7 mm

d1 - 44.1 mm

d2 - 44.1 mm

D1 - 48.1 mm

r1,2 - min. - 0.3 mm

r3,4 - min. - 0.15 mm

a - 14.3 mm

da - min. - 42 mm

db - min. - 42 mm

Da - max. - 50 mm

Db - max. - 51.2 mm

ra - max. - 0.3 mm

rb - max. - 0.15 mm

dn - 44.5 mm

Basic dynamic load rating - C - 4.5 kN

Basic static load rating - C0 - 4.6 kN

Fatigue load limit - Pu - 0.196 kN

Limiting speed for grease lubrication - 22000 r/min

Limiting speed for oil lubrication - 34000 mm/min

Ball - Dw - 3.175 mm

Ball - z - 29

Gref - 0.31 cm3

Calculation factor - e - 0.68

Calculation factor - Y2 - 0.87

Calculation factor - Y0 - 0.38

Calculation factor - X2 - 0.41

Calculation factor - Y1 - 0.92

Calculation factor - Y2 - 1.41

Calculation factor - Y0 - 0.76

Calculation factor - X2 - 0.67

Preload class A - GA - 40 N

Preload class B - GB - 120 N

Preload class C - GC - 240 N

Calculation factor - f - 1.23

Calculation factor - f1 - 0.97

Calculation factor - f2A - 1

Calculation factor - f2B - 1.08

Calculation factor - f2C - 1.15

Calculation factor - fHC - 1

Preload class A - 83 N/micron

Preload class B - 130 N/micron

Preload class C - 178 N/micron

Mass bearing - 0.031 kg

Tags :  SKF , 40x52x7