7002 ACD/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7002 ACD/HCP4A SKF:

d – 110 mm

D – 150 mm

B – 20 mm

d₁ – 122.3 mm

d₂ – 122.3 mm

D₂ – 140.57 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 40.4 mm

d_a – min. – 116 mm

d_a – max. – 121.7 mm

d_b – min. – 116 mm

d_b – max. – 121.7 mm

D_a – max. – 144 mm

D_b – max. – 146 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

Basic dynamic load rating – C – 58.5 kN

Basic static load rating – C₀ – 68 kN

Fatigue load limit – P_u – 2.6 kN

Limiting speed for grease lubrication – 8500 r/min

Ball – D_w – 12.7 mm

Ball – z – 28

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 – 370 N

Preload class B – G_B – 740 N

Preload class C – G_C – 1480 N

Preload class D – G_D – 2960 N

Calculation factor – f – 1.26

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 – 304 N/micron

Preload class B – 399 N/micron

Preload class C – 535 N/micron

Preload class D – 733 N/micron

Mass bearing – 0.739 kg

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