71920 ACE/P4AH1 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71920 ACE/P4AH1 SKF:

d – 60 mm

D – 85 mm

B – 13 mm

d₁ – 68.94 mm

d₂ – 67.73 mm

D₂ – 78.36 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.3 mm

a – 19.5 mm

d_a – min. – 64.6 mm

d_b – min. – 64.6 mm

D_a – max. – 80.4 mm

D_b – max. – 83 mm

r_a – max. – 1 mm

r_b – max. – 0.3 mm

d_n – 69.8 mm

Basic dynamic load rating – C – 10.4 kN

Basic static load rating – C₀ – 8.8 kN

Fatigue load limit – P_u – 0.375 kN

Limiting speed for grease lubrication – 22000 r/min

Limiting speed for oil lubrication – 32000 mm/min

Ball – D_w – 5.556 mm

Ball – z – 30

G_ref – 2.77 cm3

Calculation factor – f₀ – 9.8

Preload class A – G_A – 34 N

Preload class B – G_B – 68 N

Preload class C – G_C – 205 N

Calculation factor – f – 1.11

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.07

Calculation factor – f_HC – 1

Preload class A – 36 N/micron

Preload class B – 48 N/micron

Preload class C – 77 N/micron

Mass bearing – 0.195 kg

BẠN MUA VÒNG BI 71920 ACE/P4AH1 SKF Ở ĐÂU?

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