71920 ACD/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71920 ACD/P4A SKF:

d – 17 mm

D – 35 mm

B – 10 mm

d₁ – 22.7 mm

d₂ – 21.1 mm

D₂ – 31.2 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.15 mm

a – 8.6 mm

d_a – min. – 19 mm

d_a – max. – 22.3 mm

d_b – min. – 19 mm

d_b – max. – 20.7 mm

D_a – max. – 33 mm

D_b – max. – 33.6 mm

r_a – max. – 0.3 mm

r_b – max. – 0.15 mm

Basic dynamic load rating – C – 5.8 kN

Basic static load rating – C₀ – 2.6 kN

Fatigue load limit – P_u – 0.108 kN

Limiting speed for grease lubrication – 75000 r/min

Ball – D_w – 5.556 mm

Ball – z – 12

Calculation factor – f₀ – 7.2

Preload class A – G_A – 30 N

Preload class B – G_B – 90 N

Preload class C – G_C – 185 N

Calculation factor – f – 1.04

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.03

Calculation factor – f_2C – 1.05

Calculation factor – f_HC – 1.01

Preload class A – 20 N/micron

Preload class B – 31 N/micron

Preload class C – 43 N/micron

Mass bearing – 0.032 kg

BẠN MUA VÒNG BI 71920 ACD/P4A SKF Ở ĐÂU?

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