7004 ACE/HCP4AH1 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7004 ACE/HCP4AH1 SKF:

d – 120 mm

D – 180 mm

B – 28 mm

d₁ – 141.42 mm

d₂ – 137.8 mm

D₁ – 158.61 mm

b – 1.8 mm

C₁ – 8.6 mm

C₂ – 5.4 mm

C₃ – 5.4 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 34.3 mm

d_a – min. – 128.8 mm

d_b – min. – 128.8 mm

D_a – max. – 171.2 mm

D_b – max. – 174.4 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 144.9 mm

Basic dynamic load rating – C – 57.2 kN

Basic static load rating – C₀ – 55 kN

Fatigue load limit – P_u – 1.9 kN

Limiting speed for grease lubrication – 11200 r/min

Limiting speed for oil lubrication – 17500 mm/min

Ball – D_w – 14.288 mm

Ball – z – 29

G_ref – 28 cm3

Calculation factor – f₀ – 9.6

Preload class A – G_A – 310 N

Preload class B – G_B – 930 N

Preload class C – G_C – 1850 N

Calculation factor – f – 1.12

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 – 1.01

Preload class A – 115 N/micron

Preload class B – 182 N/micron

Preload class C – 250 N/micron

Mass bearing – 1.959 kg

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