7021 ACD/P4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7021 ACD/P4AL SKF:

d – 35 mm

D – 55 mm

B – 10 mm

d₁ – 41.6 mm

d₂ – 41.6 mm

D₂ – 50.07 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 15.6 mm

d_a – min. – 38.2 mm

d_a – max. – 41.1 mm

d_b – min. – 38.2 mm

d_b – max. – 41.1 mm

D_a – max. – 51.8 mm

D_b – max. – 53.6 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

Basic dynamic load rating – C – 9.2 kN

Basic static load rating – C₀ – 6.2 kN

Fatigue load limit – P_u – 0.26 kN

Limiting speed for grease lubrication – 22000 r/min

Ball – D_w – 5.556 mm

Ball – z – 21

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 – 60 N

Preload class B – G_B – 120 N

Preload class C – G_C – 240 N

Preload class D – G_D – 480 N

Calculation factor – f – 1.1

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.08

Calculation factor – f_2D – 1.14

Calculation factor – f_HC – 1

Preload class A – 81 N/micron

Preload class B – 105 N/micron

Preload class C – 137 N/micron

Preload class D – 183 N/micron

Mass bearing – 0.077 kg

BẠN MUA VÒNG BI 7021 ACD/P4AL SKF Ở ĐÂU?

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