S71908 CD/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71908 CD/HCP4A SKF:

d – 120 mm

D – 165 mm

B – 22 mm

d₁ – 136.92 mm

d₂ – 135 mm

D₂ – 151.9 mm

b – 2.2 mm

C₁ – 11.9 mm

C₂ – 4.5 mm

C₃ – 2.9 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 34.2 mm

d_a – min. – 126 mm

d_b – min. – 126 mm

D_a – max. – 159 mm

D_b – max. – 161.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 138.2 mm

Basic dynamic load rating – C – 27 kN

Basic static load rating – C₀ – 30.5 kN

Fatigue load limit – P_u – 1.1 kN

Limiting speed for grease lubrication – 10000 r/min

Limiting speed for oil lubrication – 16000 mm/min

Ball – D_w – 8.731 mm

Ball – z – 41

G_ref – 14.01 cm3

Calculation factor – f₀ – 10

Preload class A – G_A – 90 N

Preload class B – G_B – 180 N

Preload class C – G_C – 540 N

Calculation factor – f – 1.13

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.07

Calculation factor – f_HC – 1

Preload class A – 71 N/micron

Preload class B – 94 N/micron

Preload class C – 150 N/micron

Mass bearing – 1.269 kg

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