71821 CD/HCP4 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71821 CD/HCP4 SKF:

d – 15 mm

D – 28 mm

B – 7 mm

d₁ – 18.9 mm

d₂ – 18.9 mm

D₂ – 25.8 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.2 mm

a – 6.4 mm

d_a – min. – 17 mm

d_a – max. – 18.5 mm

d_b – min. – 17 mm

d_b – max. – 18.5 mm

D_a – max. – 26 mm

D_b – max. – 26.6 mm

r_a – max. – 0.3 mm

r_b – max. – 0.2 mm

Basic dynamic load rating – C – 4 kN

Basic static load rating – C₀ – 1.9 kN

Fatigue load limit – P_u – 0.08 kN

Limiting speed for grease lubrication – 56000 r/min

Ball – D_w – 3.969 mm

Ball – z – 13

Calculation factor – f₀ – 9.6

Preload class A – G_A – 15 N

Preload class B – G_B – 30 N

Preload class C – G_C – 60 N

Preload class D – G_D – 120 N

Calculation factor – f – 1.05

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.09

Calculation factor – f_2D – 1.15

Calculation factor – f_HC – 1

Preload class A – 16 N/micron

Preload class B – 21 N/micron

Preload class C – 29 N/micron

Preload class D – 41 N/micron

Mass bearing – 0.016 kg

BẠN MUA VÒNG BI 71821 CD/HCP4 SKF Ở ĐÂU?

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