71900 CE/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao 71900 CE/P4A SKF:

d – 60 mm

D – 110 mm

B – 22 mm

d₁ – 76.4 mm

d₂ – 76.4 mm

D₁ – 93.6 mm

r_1,2 – min. – 1.5 mm

r_3,4 – min. – 0.6 mm

a – 30.9 mm

d_a – min. – 69 mm

d_b – min. – 69 mm

D_a – max. – 101 mm

D_b – max. – 105.8 mm

r_a – max. – 1.5 mm

r_b – max. – 0.6 mm

d_n – 80.1 mm

Basic dynamic load rating – C – 55.3 kN

Basic static load rating – C₀ – 45 kN

Fatigue load limit – P_u – 1.9 kN

Limiting speed for grease lubrication – 11000 r/min

Limiting speed for oil lubrication – 18000 mm/min

Ball – D_w – 14.288 mm

Ball – z – 16

G_ref – 10.08 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 – 350 N

Preload class B – G_B – 700 N

Preload class C – G_C – 1400 N

Preload class D – G_D – 2800 N

Calculation factor – f – 1.07

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.01

Calculation factor – f_2C – 1.02

Calculation factor – f_2D – 1.05

Calculation factor – f_HC – 1

Preload class A – 182 N/micron

Preload class B – 238 N/micron

Preload class C – 315 N/micron

Preload class D – 424 N/micron

Mass bearing – 0.809 kg

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