S71915 CB/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71915 CB/P4A SKF:

d – 120 mm

D – 180 mm

B – 28 mm

d₁ – 138.5 mm

d₂ – 138.5 mm

D₂ – 165.05 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 49.1 mm

d_a – min. – 129 mm

d_a – max. – 137.9 mm

d_b – min. – 129 mm

d_b – max. – 137.9 mm

D_a – max. – 171 mm

D_b – max. – 175 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

Basic dynamic load rating – C – 111 kN

Basic static load rating – C₀ – 116 kN

Fatigue load limit – P_u – 4 kN

Limiting speed for grease lubrication – 8000 r/min

Ball – D_w – 19.05 mm

Ball – z – 22

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 – 690 N

Preload class B – G_B – 1380 N

Preload class C – G_C – 2760 N

Preload class D – G_D – 5520 N

Calculation factor – f – 1.17

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 – 353 N/micron

Preload class B – 461 N/micron

Preload class C – 613 N/micron

Preload class D – 831 N/micron

Mass bearing – 1.779 kg

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