7222 ACD/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7222 ACD/P4A SKF:

d – 50 mm

D – 72 mm

B – 12 mm

d₁ – 56.7 mm

d₂ – 54.9 mm

D₁ – 65.3 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 14.7 mm

d_a – min. – 53.2 mm

d_b – min. – 52 mm

D_a – max. – 68.8 mm

D_b – max. – 70 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

d_n – 58.4 mm

Basic dynamic load rating – C – 12.7 kN

Basic static load rating – C₀ – 8.6 kN

Fatigue load limit – P_u – 0.365 kN

Limiting speed for grease lubrication – 26000 r/min

Limiting speed for oil lubrication – 40000 mm/min

Ball – D_w – 7.144 mm

Ball – z – 21

G_ref – 1.7 cm3

Calculation factor – f₀ – 8.4

Preload class A – G_A – 69 N

Preload class B – G_B – 210 N

Preload class C – G_C – 410 N

Calculation factor – f – 1.15

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.08

Calculation factor – f_HC – 1

Preload class A – 38 N/micron

Preload class B – 61 N/micron

Preload class C – 83 N/micron

Mass bearing – 0.13 kg

BẠN MUA VÒNG BI 7222 ACD/P4A SKF Ở ĐÂU?

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