7018 CB/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 7018 CB/P4A SKF:

d – 220 mm

D – 300 mm

B – 38 mm

d₁ – 244.7 mm

d₂ – 244.7 mm

D₁ – 275.3 mm

r_1,2 – min. – 2.1 mm

r_3,4 – min. – 1 mm

a – 79.9 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 – 208 kN

Basic static load rating – C₀ – 285 kN

Fatigue load limit – P_u – 7.5 kN

Limiting speed for grease lubrication – 3800 r/min

Limiting speed for oil lubrication – 5600 mm/min

Ball – D_w – 25.4 mm

Ball – z – 29

G_ref – 84 cm3

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 – 1300 N

Preload class B – G_B – 2600 N

Preload class C – G_C – 5200 N

Preload class D – G_D – 10400 N

Calculation factor – f – 1.28

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.04

Calculation factor – f_2C – 1.08

Calculation factor – f_2D – 1.14

Calculation factor – f_HC – 1

Preload class A – 533 N/micron

Preload class B – 699 N/micron

Preload class C – 934 N/micron

Preload class D – 1275 N/micron

Mass bearing – 6.6 kg

BẠN MUA VÒNG BI 7018 CB/P4A SKF Ở ĐÂU?

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