71921ACD/HCP4AH1轴承

d - 105 mm

D - 145 mm

B - 20 mm

d₁ - 117.3 mm

d₂ - 117.3 mm

D₁ - 132.7 mm

K - 0.5 mm

C₁ - 5.46 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 39.3 mm

d_a - min. - 111 mm

d_b - min. - 111 mm

D_a - max. - 139 mm

D_b - max. - 141 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

d_n - 120.6 mm

Basic dynamic load rating - C - 57.2 kN

Basic static load rating - C₀ - 65.5 kN

Fatigue load limit - P_u - 2.5 kN

Limiting speed for grease lubrication - 9000 r/min

Limiting speed for oil lubrication - 15000 mm/min

Ball - D_w - 12.7 mm

Ball - z - 27

G_ref - 11.1 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 - G_A - 360 N

Preload class B - G_B - 720 N

Preload class C - G_C - 1440 N

Preload class D - G_D - 2880 N

Calculation factor - f - 1.25

Calculation factor - f₁ - 0.98

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.07

Calculation factor - f_2C - 1.12

Calculation factor - f_2D - 1.17

Calculation factor - f_HC - 1.04

Preload class A - 292 N/micron

Preload class B - 384 N/micron

Preload class C - 514 N/micron

Preload class D - 703 N/micron

Mass bearing - 0.699 kg