S71913 ACB/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71913 ACB/P4A SKF:

d – 45 mm

D – 68 mm

B – 12 mm

d₁ – 52.7 mm

d₂ – 51 mm

D₁ – 60.3 mm

b – 2 mm

C₁ – 5.9 mm

C₂ – 2.3 mm

C₃ – 1.8 mm

r_1,2 – min. – 0.6 mm

r_3,4 – min. – 0.3 mm

a – 20 mm

d_a – min. – 48.2 mm

d_b – min. – 47 mm

D_a – max. – 64.8 mm

D_b – max. – 66 mm

r_a – max. – 0.6 mm

r_b – max. – 0.3 mm

d_n – 54.2 mm

Basic dynamic load rating – C – 9.8 kN

Basic static load rating – C₀ – 6.6 kN

Fatigue load limit – P_u – 0.275 kN

Limiting speed for grease lubrication – 25000 r/min

Limiting speed for oil lubrication – 39000 mm/min

Ball – D_w – 6.35 mm

Ball – z – 21

G_ref – 1.5 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 – 88 N

Preload class B – G_B – 265 N

Preload class C – G_C – 529 N

Calculation factor – f – 1.09

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.07

Calculation factor – f_HC – 1

Preload class A – 85 N/micron

Preload class B – 127 N/micron

Preload class C – 166 N/micron

Mass bearing – 0.13 kg

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