71948 CD/P4AL SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71948 CD/P4AL SKF:

d – 7 mm

D – 22 mm

B – 7 mm

d₁ – 12.6 mm

d₂ – 12.6 mm

D₁ – 17.4 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.2 mm

a – 5.5 mm

d_a – min. – 9.4 mm

d_b – min. – 9.4 mm

D_a – max. – 19.6 mm

D_b – max. – 20.2 mm

r_a – max. – 0.3 mm

r_b – max. – 0.2 mm

d_n – 13.6 mm

Basic dynamic load rating – C – 3 kN

Basic static load rating – C₀ – 1.2 kN

Fatigue load limit – P_u – 0.049 kN

Limiting speed for grease lubrication – 95000 r/min

Limiting speed for oil lubrication – 150000 mm/min

Ball – D_w – 3.969 mm

Ball – z – 9

G_ref – 0.162 cm3

Calculation factor – f₀ – 8.4

Preload class A – G_A – 12 N

Preload class B – G_B – 24 N

Preload class C – G_C – 48 N

Preload class D – G_D – 96 N

Calculation factor – f – 1.02

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 – 13 N/micron

Preload class B – 17 N/micron

Preload class C – 23 N/micron

Preload class D – 33 N/micron

Mass bearing – 0.012 kg

BẠN MUA VÒNG BI 71948 CD/P4AL SKF Ở ĐÂU?

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