S71900 CD/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71900 CD/P4A SKF:

d – 40 mm

D – 68 mm

B – 15 mm

d₁ – 50.95 mm

d₂ – 49.87 mm

D₂ – 58.88 mm

b – 1.5 mm

C₁ – 7.8 mm

C₂ – 3.6 mm

C₃ – 2.6 mm

r_1,2 – min. – 1 mm

r_3,4 – min. – 0.6 mm

a – 20.2 mm

d_a – min. – 44.6 mm

d_b – min. – 44.6 mm

D_a – max. – 63.4 mm

D_b – max. – 64.8 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 51.6 mm

Basic dynamic load rating – C – 6.9 kN

Basic static load rating – C₀ – 5.3 kN

Fatigue load limit – P_u – 0.224 kN

Limiting speed for grease lubrication – 32000 r/min

Limiting speed for oil lubrication – 48000 mm/min

Ball – D_w – 4.762 mm

Ball – z – 26

G_ref – 2.22 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 – 41 N

Preload class B – G_B – 82 N

Preload class C – G_C – 245 N

Calculation factor – f – 1.04

Calculation factor – f₁ – 0.99

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.02

Calculation factor – f_2C – 1.05

Calculation factor – f_HC – 1.01

Preload class A – 80 N/micron

Preload class B – 102 N/micron

Preload class C – 153 N/micron

Mass bearing – 0.203 kg

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