S71909 CB/HCP4A SKF

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

d – 120 mm

D – 180 mm

B – 28 mm

d₁ – 143.2 mm

d₂ – 140.8 mm

D₂ – 161.9 mm

b – 2.2 mm

C₁ – 15.1 mm

C₂ – 6.3 mm

C₃ – 4.3 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 34.2 mm

d_a – min. – 129 mm

d_b – min. – 129 mm

D_a – max. – 171 mm

D_b – max. – 175.4 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 144.7 mm

Basic dynamic load rating – C – 37.7 kN

Basic static load rating – C₀ – 39 kN

Fatigue load limit – P_u – 1.3 kN

Limiting speed for grease lubrication – 9500 r/min

Limiting speed for oil lubrication – 14000 mm/min

Ball – D_w – 11.112 mm

Ball – z – 33

G_ref – 23.69 cm3

Calculation factor – f₀ – 9.8

Preload class A – G_A – 130 N

Preload class B – G_B – 260 N

Preload class C – G_C – 780 N

Calculation factor – f – 1.08

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_HC – 1

Preload class A – 75 N/micron

Preload class B – 98 N/micron

Preload class C – 156 N/micron

Mass bearing – 2.35 kg

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