S71906 ACE/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71906 ACE/HCP4A SKF:

d – 20 mm

D – 47 mm

B – 14 mm

d₁ – 29.1 mm

d₂ – 29.1 mm

D₁ – 38.7 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.3 mm

a – 15 mm

d_a – min. – 25.6 mm

d_b – min. – 25.6 mm

D_a – max. – 41.4 mm

D_b – max. – 44.6 mm

r_a – max. – 1 mm

r_b – max. – 0.3 mm

d_n – 31.1 mm

Basic dynamic load rating – C – 11.4 kN

Basic static load rating – C₀ – 5.6 kN

Fatigue load limit – P_u – 0.236 kN

Limiting speed for grease lubrication – 32000 r/min

Limiting speed for oil lubrication – 48000 mm/min

Ball – D_w – 7.938 mm

Ball – z – 11

G_ref – 1.539 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 – 70 N

Preload class B – G_B – 140 N

Preload class C – G_C – 280 N

Preload class D – G_D – 560 N

Calculation factor – f – 1.03

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.01

Calculation factor – f_2C – 1.02

Calculation factor – f_2D – 1.05

Calculation factor – f_HC – 1

Preload class A – 61 N/micron

Preload class B – 79 N/micron

Preload class C – 102 N/micron

Preload class D – 135 N/micron

Mass bearing – 0.104 kg

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