71808 ACD/HCP4 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71808 ACD/HCP4 SKF:

d – 220 mm

D – 300 mm

B – 38 mm

d₁ – 244.7 mm

d₂ – 244.7 mm

D₁ – 275.3 mm

b – 3.5 mm

C₁ – 20.9 mm

C₂ – 7.1 mm

C₃ – 5.45 mm

r_1,2 – min. – 2.1 mm

r_3,4 – min. – 1 mm

a – 54 mm

d_a – min. – 231 mm

d_b – min. – 231 mm

D_a – max. – 289 mm

D_b – max. – 295 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 251.4 mm

Basic dynamic load rating – C – 221 kN

Basic static load rating – C₀ – 300 kN

Fatigue load limit – P_u – 7.8 kN

Limiting speed for grease lubrication – 5300 r/min

Limiting speed for oil lubrication – 7500 mm/min

Ball – D_w – 25.4 mm

Ball – z – 29

G_ref – 84 cm3

Calculation factor – f₀ – 16.5

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 – 1.28

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.18

Calculation factor – f_HC – 1.04

Preload class A – 248 N/micron

Preload class B – 340 N/micron

Preload class C – 481 N/micron

Preload class D – 705 N/micron

Mass bearing – 5.557 kg

BẠN MUA VÒNG BI 71808 ACD/HCP4 SKF Ở ĐÂU?

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