S7009 ACE/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S7009 ACE/HCP4A SKF:

d – 140 mm

D – 250 mm

B – 42 mm

d₁ – 176.8 mm

d₂ – 176.8 mm

D₁ – 213.2 mm

r_1,2 – min. – 3 mm

r_3,4 – min. – 1.5 mm

a – 47.3 mm

d_a – min. – 154 mm

d_b – min. – 154 mm

D_a – max. – 236 mm

D_b – max. – 241 mm

r_a – max. – 2.5 mm

r_b – max. – 1.5 mm

d_n – 184.8 mm

Basic dynamic load rating – C – 221 kN

Basic static load rating – C₀ – 240 kN

Fatigue load limit – P_u – 7.4 kN

Limiting speed for grease lubrication – 7000 r/min

Limiting speed for oil lubrication – 10000 mm/min

Ball – D_w – 30.162 mm

Ball – z – 18

G_ref – 83.931 cm3

Calculation factor – f₀ – 15.2

Preload class A – G_A – 850 N

Preload class B – G_B – 1700 N

Preload class C – G_C – 3400 N

Preload class D – G_D – 6800 N

Calculation factor – f – 1.09

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 – 181 N/micron

Preload class B – 245 N/micron

Preload class C – 339 N/micron

Preload class D – 485 N/micron

Mass bearing – 6.923 kg

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