7020 ACD/P4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7020 ACD/P4AL SKF:

d – 30 mm

D – 55 mm

B – 13 mm

d₁ – 39.45 mm

d₂ – 38.3 mm

D₂ – 47.25 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.6 mm

a – 12.2 mm

d_a – min. – 34.6 mm

d_b – min. – 34.6 mm

D_a – max. – 50.4 mm

D_b – max. – 51.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 40 mm

Basic dynamic load rating – C – 6.5 kN

Basic static load rating – C₀ – 4.2 kN

Fatigue load limit – P_u – 0.176 kN

Limiting speed for grease lubrication – 43000 r/min

Limiting speed for oil lubrication – 67000 mm/min

Ball – D_w – 4.762 mm

Ball – z – 20

G_ref – 1.4 cm3

Calculation factor – f₀ – 9.4

Preload class A – G_A – 21 N

Preload class B – G_B – 42 N

Preload class C – G_C – 125 N

Calculation factor – f – 1.03

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_HC – 1.01

Preload class A – 25 N/micron

Preload class B – 32 N/micron

Preload class C – 51 N/micron

Mass bearing – 0.125 kg

BẠN MUA VÒNG BI 7020 ACD/P4AL SKF Ở ĐÂU?

• Địa chỉ: 19/4B TCH 25, P. Tân Chánh Hiệp, Quận 12, Tp Hồ Chí Minh
• Hotline: 0902 698 990
• Email: info@sieuthivongbi.com