S71909 ACB/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71909 ACB/HCP4A SKF:

d – 55 mm

D – 90 mm

B – 18 mm

d₁ – 65.8 mm

d₂ – 65.8 mm

D₂ – 81.8 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 18.8 mm

d_a – min. – 61 mm

d_a – max. – 65.2 mm

d_b – min. – 61 mm

d_b – max. – 65.2 mm

D_a – max. – 84 mm

D_b – max. – 86.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

Basic dynamic load rating – C – 39.7 kN

Basic static load rating – C₀ – 32.5 kN

Fatigue load limit – P_u – 1.4 kN

Limiting speed for grease lubrication – 15000 r/min

Ball – D_w – 11.112 mm

Ball – z – 18

Calculation factor – f₀ – 15.1

Preload class A – G_A – 150 N

Preload class B – G_B – 300 N

Preload class C – G_C – 600 N

Preload class D – G_D – 1200 N

Calculation factor – f – 1.1

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_2D – 1.09

Calculation factor – f_HC – 1

Preload class A – 67 N/micron

Preload class B – 91 N/micron

Preload class C – 128 N/micron

Preload class D – 186 N/micron

Mass bearing – 0.382 kg

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