71902 ACE/HCP4AH SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71902 ACE/HCP4AH SKF:

d – 75 mm

D – 115 mm

B – 20 mm

d₁ – 87.3 mm

d₂ – 87.3 mm

D₂ – 105.62 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 22.8 mm

d_a – min. – 81 mm

d_a – max. – 86.7 mm

d_b – min. – 81 mm

d_b – max. – 86.7 mm

D_a – max. – 109 mm

D_b – max. – 111 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

Basic dynamic load rating – C – 52.7 kN

Basic static load rating – C₀ – 49 kN

Fatigue load limit – P_u – 2.1 kN

Limiting speed for grease lubrication – 14000 r/min

Ball – D_w – 12.7 mm

Ball – z – 20

Calculation factor – f₀ – 15.7

Preload class A – G_A – 200 N

Preload class B – G_B – 400 N

Preload class C – G_C – 800 N

Preload class D – G_D – 1600 N

Calculation factor – f – 1.14

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_2D – 1.09

Calculation factor – f_HC – 1.02

Preload class A – 93 N/micron

Preload class B – 128 N/micron

Preload class C – 179 N/micron

Preload class D – 260 N/micron

Mass bearing – 0.538 kg

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