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SKF 71909ACB/P4AL bearing

Bearing 71909 ACB/P4AL Bearing 71909 ACB/P4AL

SKF 71909ACB/P4AL, Size: 45x68x12. SKF 71909ACB/P4AL are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.

Angular contact ball bearings, super-precision 71909 ACB/P4AL

Bearing number : 71909 ACB/P4AL

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 - 53.45 mm

d2 - 52.4 mm

D2 - 61.8 mm

b - 2 mm

C1 - 5.9 mm

C2 - 2.8 mm

C3 - 1.7 mm

r1,2 - min. - 0.6 mm

r3,4 - min. - 0.3 mm

a - 22.1 mm

da - min. - 48.2 mm

db - min. - 48.2 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 - 7 kN

Basic static load rating - C0 - 5.4 kN

Fatigue load limit - Pu - 0.232 kN

Limiting speed for grease lubrication - 24000 r/min

Limiting speed for oil lubrication - 38000 mm/min

Ball - Dw - 4.762 mm

Ball - z - 27

Gref - 1.75 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 - 41 N

Preload class B - GB - 82 N

Preload class C - GC - 245 N

Calculation factor - f - 1.08

Calculation factor - f1 - 0.99

Calculation factor - f2A - 1

Calculation factor - f2B - 1.02

Calculation factor - f2C - 1.07

Calculation factor - fHC - 1

Preload class A - 74 N/micron

Preload class B - 95 N/micron

Preload class C - 143 N/micron

Mass bearing - 0.132 kg

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