7012 ACD/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7012 ACD/P4A SKF:

d – 12 mm

D – 28 mm

B – 8 mm

d₁ – 17.5 mm

d₂ – 16.5 mm

D₁ – 22.45 mm

K – 0.5 mm

C₁ – 4.9 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.15 mm

a – 6.7 mm

d_a – min. – 14 mm

d_b – min. – 14 mm

D_a – max. – 26 mm

D_b – max. – 26.6 mm

r_a – max. – 0.3 mm

r_b – max. – 0.15 mm

d_n – 18.5 mm

Basic dynamic load rating – C – 3.2 kN

Basic static load rating – C₀ – 1.3 kN

Fatigue load limit – P_u – 0.057 kN

Limiting speed for grease lubrication – 80000 r/min

Limiting speed for oil lubrication – 127000 mm/min

Ball – D_w – 3.969 mm

Ball – z – 12

G_ref – 0.31 cm3

Calculation factor – f₀ – 7.3

Preload class A – G_A – 17 N

Preload class B – G_B – 53 N

Preload class C – G_C – 110 N

Calculation factor – f – 1.02

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

Preload class A – 13 N/micron

Preload class B – 21 N/micron

Preload class C – 30 N/micron

Mass bearing – 0.021 kg

BẠN MUA VÒNG BI 7012 ACD/P4A SKF Ở ĐÂU?

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