71903 ACE/HCP4AH SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71903 ACE/HCP4AH SKF:

d – 50 mm

D – 80 mm

B – 16 mm

d₁ – 60.25 mm

d₂ – 57.9 mm

D₁ – 69.75 mm

b – 1.7 mm

C₁ – 8.6 mm

C₂ – 2.7 mm

C₃ – 3 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.6 mm

a – 16.8 mm

d_a – min. – 54.6 mm

d_b – min. – 54.6 mm

D_a – max. – 75.4 mm

D_b – max. – 75.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 62.3 mm

Basic dynamic load rating – C – 15.6 kN

Basic static load rating – C₀ – 10.6 kN

Fatigue load limit – P_u – 0.45 kN

Limiting speed for grease lubrication – 30000 r/min

Limiting speed for oil lubrication – 46000 mm/min

Ball – D_w – 7.938 mm

Ball – z – 21

G_ref – 4.1 cm3

Calculation factor – f₀ – 8.2

Preload class A – G_A – 85 N

Preload class B – G_B – 250 N

Preload class C – G_C – 500 N

Calculation factor – f – 1.08

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 – 1.01

Preload class A – 46 N/micron

Preload class B – 72 N/micron

Preload class C – 98 N/micron

Mass bearing – 0.228 kg

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