S71922 ACB/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71922 ACB/HCP4A SKF:

d – 45 mm

D – 85 mm

B – 19 mm

d₁ – 57.3 mm

d₂ – 57.3 mm

D₂ – 75.7 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 18.3 mm

d_a – min. – 52 mm

d_a – max. – 56.5 mm

d_b – min. – 52 mm

d_b – max. – 56.5 mm

D_a – max. – 78 mm

D_b – max. – 80.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

Basic dynamic load rating – C – 42.3 kN

Basic static load rating – C₀ – 31 kN

Fatigue load limit – P_u – 1.3 kN

Limiting speed for grease lubrication – 20000 r/min

Ball – D_w – 12.7 mm

Ball – z – 14

Calculation factor – f₀ – 14.2

Preload class A – G_A – 160 N

Preload class B – G_B – 320 N

Preload class C – G_C – 640 N

Preload class D – G_D – 1280 N

Calculation factor – f – 1.07

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.01

Calculation factor – f_2C – 1.03

Calculation factor – f_2D – 1.06

Calculation factor – f_HC – 1.01

Preload class A – 67 N/micron

Preload class B – 92 N/micron

Preload class C – 128 N/micron

Preload class D – 185 N/micron

Mass bearing – 0.347 kg

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