SKF 71948 ACD/P4A轴承,SKF 71948 ACD/P4A角接触球轴承-搜轴承SKF数据中心
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d - 240 mm

D - 320 mm

B - 38 mm

d1 - 264.7 mm

d2 - 264.7 mm

D1 - 295.3 mm

r1,2 - min. - 2.1 mm

r3,4 - min. - 1 mm

a - 84.5 mm

da - min. - 251 mm

db - min. - 251 mm

Da - max. - 309 mm

Db - max. - 315 mm

ra - max. - 2 mm

rb - max. - 1 mm

dn - 271.4 mm

Basic dynamic load rating - C - 216 kN

Basic static load rating - C0 - 305 kN

Fatigue load limit - Pu - 7.8 kN

Limiting speed for grease lubrication - 3200 r/min

Limiting speed for oil lubrication - 4800 mm/min

Ball - Dw - 25.4 mm

Ball - z - 31

Gref - 93 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 - 1350 N

Preload class B - GB - 2700 N

Preload class C - GC - 5400 N

Preload class D - GD - 10800 N

Calculation factor - f - 1.32

Calculation factor - f1 - 0.98

Calculation factor - f2A - 1

Calculation factor - f2B - 1.04

Calculation factor - f2C - 1.08

Calculation factor - f2D - 1.14

Calculation factor - fHC - 1

Preload class A - 584 N/micron

Preload class B - 767 N/micron

Preload class C - 1029 N/micron

Preload class D - 1412 N/micron

Mass bearing - 8.5 kg

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