71903CD/HCP4A轴承

d - 17 mm

D - 30 mm

B - 7 mm

d₁ - 20.9 mm

d₂ - 20.9 mm

D₁ - 25.7 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.2 mm

a - 6.7 mm

d_a - min. - 19 mm

d_b - min. - 19 mm

D_a - max. - 28 mm

D_b - max. - 28.6 mm

r_a - max. - 0.3 mm

r_b - max. - 0.2 mm

d_n - 22.1 mm

Basic dynamic load rating - C - 4.2 kN

Basic static load rating - C₀ - 2.1 kN

Fatigue load limit - P_u - 0.088 kN

Limiting speed for grease lubrication - 63000 r/min

Limiting speed for oil lubrication - 90000 mm/min

Ball - D_w - 3.969 mm

Ball - z - 14

G_ref - 0.24 cm3

Calculation factor - f₀ - 9.8

Preload class A - G_A - 15 N

Preload class B - G_B - 30 N

Preload class C - G_C - 60 N

Preload class D - G_D - 120 N

Calculation factor - f - 1.05

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.07

Calculation factor - f_2C - 1.12

Calculation factor - f_2D - 1.18

Calculation factor - f_HC - 1.04

Preload class A - 18 N/micron

Preload class B - 24 N/micron

Preload class C - 34 N/micron

Preload class D - 47 N/micron

Mass bearing - 0.015 kg