7007 ACE/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7007 ACE/P4A SKF:

d – 40 mm

D – 62 mm

B – 12 mm

d₁ – 46.5 mm

d₂ – 44.8 mm

D₁ – 54.15 mm

K – 0.5 mm

C₁ – 3.75 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 18.6 mm

d_a – min. – 43.2 mm

d_b – min. – 42 mm

D_a – max. – 58.8 mm

D_b – max. – 60 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

d_n – 48 mm

Basic dynamic load rating – C – 9.2 kN

Basic static load rating – C₀ – 5.8 kN

Fatigue load limit – P_u – 0.245 kN

Limiting speed for grease lubrication – 34000 r/min

Limiting speed for oil lubrication – 52000 mm/min

Ball – D_w – 6.35 mm

Ball – z – 19

G_ref – 1.4 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 – 84 N

Preload class B – G_B – 250 N

Preload class C – G_C – 505 N

Calculation factor – f – 1.05

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.08

Calculation factor – f_HC – 1.01

Preload class A – 86 N/micron

Preload class B – 130 N/micron

Preload class C – 170 N/micron

Mass bearing – 0.088 kg

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