S71922 ACD/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71922 ACD/HCP4A SKF:

d – 20 mm

D – 42 mm

B – 12 mm

d₁ – 26.6 mm

d₂ – 24.8 mm

D₁ – 34.21 mm

K – 0.5 mm

C₁ – 3.67 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 10.2 mm

d_a – min. – 22 mm

d_b – min. – 22 mm

D_a – max. – 40 mm

D_b – max. – 39.6 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

d_n – 28.1 mm

Basic dynamic load rating – C – 7.4 kN

Basic static load rating – C₀ – 3.4 kN

Fatigue load limit – P_u – 0.143 kN

Limiting speed for grease lubrication – 54000 r/min

Limiting speed for oil lubrication – 83000 mm/min

Ball – D_w – 6.35 mm

Ball – z – 12

G_ref – 1.1 cm3

Calculation factor – f₀ – 7.2

Preload class A – G_A – 40 N

Preload class B – G_B – 120 N

Preload class C – G_C – 235 N

Calculation factor – f – 1.04

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.03

Calculation factor – f_2C – 1.05

Calculation factor – f_HC – 1

Preload class A – 21 N/micron

Preload class B – 32 N/micron

Preload class C – 44 N/micron

Mass bearing – 0.064 kg

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