S71907 ACB/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71907 ACB/P4A SKF:

d – 8 mm

D – 22 mm

B – 7 mm

d₁ – 12.6 mm

d₂ – 12.6 mm

D₁ – 17.4 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.2 mm

a – 7 mm

d_a – min. – 10 mm

d_b – min. – 10 mm

D_a – max. – 20 mm

D_b – max. – 20.6 mm

r_a – max. – 0.3 mm

r_b – max. – 0.2 mm

d_n – 13.6 mm

Basic dynamic load rating – C – 3.2 kN

Basic static load rating – C₀ – 1.3 kN

Fatigue load limit – P_u – 0.056 kN

Limiting speed for grease lubrication – 95000 r/min

Limiting speed for oil lubrication – 150000 mm/min

Ball – D_w – 3.969 mm

Ball – z – 9

G_ref – 0.15 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 – 20 N

Preload class B – G_B – 40 N

Preload class C – G_C – 80 N

Preload class D – G_D – 160 N

Calculation factor – f – 1.02

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_2D – 1.08

Calculation factor – f_HC – 1.02

Preload class A – 32 N/micron

Preload class B – 41 N/micron

Preload class C – 53 N/micron

Preload class D – 71 N/micron

Mass bearing – 0.011 kg

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