248/1800 CAFA/W20 SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu 248/1800 CAFA/W20 SKF

d – 50 mm

D – 80 mm

B – 16 mm

d₁ – 61,44 mm

d₂ – 59,65 mm

D₂ – 70,7 mm

r_1,2 – min – 1 mm

r_3,4 – min – 0,6 mm

a – 23,2 mm

d_a – min – 54,6 mm

d_a – max – 60,8 mm

d_b – min – 54,6 mm

d_b – max – 59,1 mm

D_a – max – 75,4 mm

D_b – max – 76,8 mm

r_a – max – 1 mm

r_b – max – 0,6 mm

Basic dynamic load rating – C – 9,4 kN

Basic static load rating – C₀ – 7,4 kN

Fatigue load limit – P_u – 0,31 kN

Limiting speed for grease lubrication – 22.000 r/min

Ball – D_w – 5,556 mm

Ball – z – 27

Calculation factor – e – 0,68

Calculation factor – Y₂ – 0,87

Calculation factor – Y₀ – 0,38

Calculation factor – X₂ – 0,41

Calculation factor – Y₁ – 0,92

Calculation factor – Y₂ – 1,41

Calculation factor – Y₀ – 0,76

Calculation factor – X₂ – 0,67

Preload class A – G_A – 147 N

Preload class B – G_B – 110 N

Preload class C – G_C – 330 N

Calculation factor – f – 1,06

Calculation factor – f₁ – 0,99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1,01

Calculation factor – f_2C – 1,04

Calculation factor – f_HC – 1

Preload class A – 87 N/micron

Preload class B – 110 N/micron

Preload class C – 165 N/micron

Mass bearing – 0,29 kg

BẠN MUA VÒNG BI 248/1800 CAFA/W20 SKF Ở ĐÂU?

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