7003 ACE/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7003 ACE/P4A SKF:

d – 75 mm

D – 105 mm

B – 16 mm

d₁ – 84.2 mm

d₂ – 84.2 mm

D₁ – 95.8 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.3 mm

a – 29.1 mm

d_a – min. – 79.6 mm

d_b – min. – 79.6 mm

D_a – max. – 100 mm

D_b – max. – 103 mm

r_a – max. – 1 mm

r_b – max. – 0.3 mm

d_n – 86.7 mm

Basic dynamic load rating – C – 33.8 kN

Basic static load rating – C₀ – 35.5 kN

Fatigue load limit – P_u – 1.5 kN

Limiting speed for grease lubrication – 13000 r/min

Limiting speed for oil lubrication – 20000 mm/min

Ball – D_w – 9.525 mm

Ball – z – 26

G_ref – 5.1 cm3

Calculation factor – e – 0.68

Calculation factor – Y₂ – 0.87

Calculation factor – Y₀ – 0.38

Calculation factor – X₂ – 0.41

Calculation factor – Y₁ – 0.92

Calculation factor – Y₂ – 1.41

Calculation factor – Y₀ – 0.76

Calculation factor – X₂ – 0.67

Preload class A – G_A – 210 N

Preload class B – G_B – 420 N

Preload class C – G_C – 840 N

Preload class D – G_D – 1680 N

Calculation factor – f – 1.21

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.17

Calculation factor – f_HC – 1.04

Preload class A – 216 N/micron

Preload class B – 283 N/micron

Preload class C – 377 N/micron

Preload class D – 515 N/micron

Mass bearing – 0.302 kg

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