71924 CB/HCP4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71924 CB/HCP4AL SKF:

d – 70 mm

D – 100 mm

B – 16 mm

d₁ – 79.3 mm

d₂ – 76.8 mm

D₁ – 90.52 mm

b – 2 mm

C₁ – 8.6 mm

C₂ – 2.8 mm

C₃ – 2.8 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.3 mm

a – 29.1 mm

d_a – min. – 74.6 mm

d_b – min. – 72 mm

D_a – max. – 95.4 mm

D_b – max. – 98 mm

r_a – max. – 1 mm

r_b – max. – 0.3 mm

d_n – 81.5 mm

Basic dynamic load rating – C – 20.8 kN

Basic static load rating – C₀ – 15.3 kN

Fatigue load limit – P_u – 0.655 kN

Limiting speed for grease lubrication – 16500 r/min

Limiting speed for oil lubrication – 26000 mm/min

Ball – D_w – 9.525 mm

Ball – z – 22

G_ref – 4.3 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 – 190 N

Preload class B – G_B – 570 N

Preload class C – G_C – 1130 N

Calculation factor – f – 1.14

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.07

Calculation factor – f_HC – 1

Preload class A – 131 N/micron

Preload class B – 197 N/micron

Preload class C – 258 N/micron

Mass bearing – 0.32 kg

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