SKF 71909 ACE/P4A Bearing

SKF 71909 ACE/P4A Bearing

Bearing 71909 ACE/P4ABearing 71909 ACE/P4A

Bearing number : 71909 ACE/P4A

Size (mm) : 45x68x12

Brand : SKF

Bore Diameter (mm) : 45

Outer Diameter (mm) : 68

Width (mm) : 12

Bearing dimensions and specification in SKF catalogue:

d - 45 mm

D - 68 mm

B - 12 mm

d1 - 52.7 mm

d2 - 51 mm

D1 - 60.3 mm

r1,2 - min. - 0.6 mm

r3,4 - min. - 0.3 mm

a - 20 mm

da - min. - 48.2 mm

db - min. - 47 mm

Da - max. - 64.8 mm

Db - max. - 66 mm

ra - max. - 0.6 mm

rb - max. - 0.3 mm

dn - 54.2 mm

Basic dynamic load rating - C - 9.8 kN

Basic static load rating - C0 - 6.6 kN

Fatigue load limit - Pu - 0.275 kN

Limiting speed for grease lubrication - 25000 r/min

Limiting speed for oil lubrication - 39000 mm/min

Ball - Dw - 6.35 mm

Ball - z - 21

Gref - 1.5 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 - 88 N

Preload class B - GB - 265 N

Preload class C - GC - 529 N

Calculation factor - f - 1.09

Calculation factor - f1 - 0.99

Calculation factor - f2A - 1

Calculation factor - f2B - 1.04

Calculation factor - f2C - 1.07

Calculation factor - fHC - 1

Preload class A - 85 N/micron

Preload class B - 127 N/micron

Preload class C - 166 N/micron

Mass bearing - 0.13 kg

Tags :  SKF , 45x68x12

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