7020 CD/P4AH1 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7020 CD/P4AH1 SKF:

d – 8 mm

D – 24 mm

B – 8 mm

d₁ – 13.1 mm

d₂ – 13.1 mm

D₁ – 18.9 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.2 mm

a – 6.2 mm

d_a – min. – 10.4 mm

d_b – min. – 10.4 mm

D_a – max. – 21.6 mm

D_b – max. – 22.2 mm

r_a – max. – 0.3 mm

r_b – max. – 0.2 mm

d_n – 14.3 mm

Basic dynamic load rating – C – 3.7 kN

Basic static load rating – C₀ – 1.4 kN

Fatigue load limit – P_u – 0.057 kN

Limiting speed for grease lubrication – 70000 r/min

Limiting speed for oil lubrication – 110000 mm/min

Ball – D_w – 4.762 mm

Ball – z – 8

G_ref – 0.228 cm3

Calculation factor – f₀ – 7.9

Preload class A – G_A – 14 N

Preload class B – G_B – 28 N

Preload class C – G_C – 56 N

Preload class D – G_D – 112 N

Calculation factor – f – 1.02

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.01

Calculation factor – f_2C – 1.03

Calculation factor – f_2D – 1.05

Calculation factor – f_HC – 1

Preload class A – 12 N/micron

Preload class B – 15 N/micron

Preload class C – 21 N/micron

Preload class D – 30 N/micron

Mass bearing – 0.017 kg

BẠN MUA VÒNG BI 7020 CD/P4AH1 SKF Ở ĐÂU?

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