7220 ACD/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7220 ACD/HCP4A SKF:

d – 150 mm

D – 210 mm

B – 28 mm

d₁ – 168.5 mm

d₂ – 168.5 mm

D₁ – 191.5 mm

K – 0.6 mm

C₁ – 7.32 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 56.1 mm

d_a – min. – 159 mm

d_b – min. – 159 mm

D_a – max. – 201 mm

D_b – max. – 205 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 173.5 mm

Basic dynamic load rating – C – 119 kN

Basic static load rating – C₀ – 140 kN

Fatigue load limit – P_u – 4.5 kN

Limiting speed for grease lubrication – 6700 r/min

Limiting speed for oil lubrication – 10000 mm/min

Ball – D_w – 19.05 mm

Ball – z – 26

G_ref – 33 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 – 740 N

Preload class B – G_B – 1480 N

Preload class C – G_C – 2960 N

Preload class D – G_D – 5920 N

Calculation factor – f – 1.24

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.17

Calculation factor – f_HC – 1.04

Preload class A – 411 N/micron

Preload class B – 539 N/micron

Preload class C – 719 N/micron

Preload class D – 979 N/micron

Mass bearing – 2.03 kg

BẠN MUA VÒNG BI 7220 ACD/HCP4A SKF Ở ĐÂU?

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