71920 CE/P4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71920 CE/P4AL SKF:

d – 35 mm

D – 55 mm

B – 10 mm

d₁ – 42.46 mm

d₂ – 41.56 mm

D₂ – 49.5 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 13.6 mm

d_a – min. – 38.2 mm

d_b – min. – 38.2 mm

D_a – max. – 51.8 mm

D_b – max. – 53 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

d_n – 43 mm

Basic dynamic load rating – C – 5.2 kN

Basic static load rating – C₀ – 3.6 kN

Fatigue load limit – P_u – 0.156 kN

Limiting speed for grease lubrication – 40000 r/min

Limiting speed for oil lubrication – 63000 mm/min

Ball – D_w – 3.969 mm

Ball – z – 25

G_ref – 0.96 cm3

Calculation factor – f₀ – 9.7

Preload class A – G_A – 17 N

Preload class B – G_B – 34 N

Preload class C – G_C – 100 N

Calculation factor – f – 1.06

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.03

Calculation factor – f_2C – 1.08

Calculation factor – f_HC – 1.01

Preload class A – 25 N/micron

Preload class B – 33 N/micron

Preload class C – 52 N/micron

Mass bearing – 0.074 kg

BẠN MUA VÒNG BI 71920 CE/P4AL SKF Ở ĐÂU?

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