S71912 CB/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71912 CB/HCP4A SKF:

d – 100 mm

D – 140 mm

B – 20 mm

d₁ – 112.3 mm

d₂ – 112.3 mm

D₁ – 127.7 mm

b – 2.3 mm

C₁ – 10.9 mm

C₂ – 4 mm

C₃ – 3.3 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 38.1 mm

d_a – min. – 106 mm

d_b – min. – 106 mm

D_a – max. – 134 mm

D_b – max. – 136 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 115.6 mm

Basic dynamic load rating – C – 57.2 kN

Basic static load rating – C₀ – 63 kN

Fatigue load limit – P_u – 2.4 kN

Limiting speed for grease lubrication – 8000 r/min

Limiting speed for oil lubrication – 13000 mm/min

Ball – D_w – 12.7 mm

Ball – z – 26

G_ref – 10.5 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 – 360 N

Preload class B – G_B – 720 N

Preload class C – G_C – 1440 N

Preload class D – G_D – 2880 N

Calculation factor – f – 1.23

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_2D – 1.14

Calculation factor – f_HC – 1

Preload class A – 255 N/micron

Preload class B – 336 N/micron

Preload class C – 449 N/micron

Preload class D – 613 N/micron

Mass bearing – 0.8 kg

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