71928 CD/HCP4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71928 CD/HCP4AL SKF:

d – 25 mm

D – 42 mm

B – 9 mm

d₁ – 30.6 mm

d₂ – 30.6 mm

D₁ – 36.4 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.2 mm

a – 9 mm

d_a – min. – 27 mm

d_b – min. – 27 mm

D_a – max. – 40 mm

D_b – max. – 40.6 mm

r_a – max. – 0.3 mm

r_b – max. – 0.2 mm

d_n – 31.8 mm

Basic dynamic load rating – C – 6.8 kN

Basic static load rating – C₀ – 4 kN

Fatigue load limit – P_u – 0.17 kN

Limiting speed for grease lubrication – 45000 r/min

Limiting speed for oil lubrication – 63000 mm/min

Ball – D_w – 4.762 mm

Ball – z – 18

G_ref – 0.54 cm3

Calculation factor – f₀ – 10.2

Preload class A – G_A – 25 N

Preload class B – G_B – 50 N

Preload class C – G_C – 100 N

Preload class D – G_D – 200 N

Calculation factor – f – 1.07

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.18

Calculation factor – f_HC – 1.04

Preload class A – 27 N/micron

Preload class B – 36 N/micron

Preload class C – 49 N/micron

Preload class D – 69 N/micron

Mass bearing – 0.039 kg

BẠN MUA VÒNG BI 71928 CD/HCP4AL SKF Ở ĐÂU?

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