S71908 CE/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71908 CE/P4A SKF:

d – 190 mm

D – 260 mm

B – 33 mm

d₁ – 211.6 mm

d₂ – 211.6 mm

D₁ – 238.4 mm

K – 0.6 mm

C₁ – 8.6 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 69.2 mm

d_a – min. – 199 mm

d_b – min. – 199 mm

D_a – max. – 251 mm

D_b – max. – 255 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 217.4 mm

Basic dynamic load rating – C – 163 kN

Basic static load rating – C₀ – 208 kN

Fatigue load limit – P_u – 5.8 kN

Limiting speed for grease lubrication – 5300 r/min

Limiting speed for oil lubrication – 8000 mm/min

Ball – D_w – 22.225 mm

Ball – z – 28

G_ref – 57 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 – 1000 N

Preload class B – G_B – 2000 N

Preload class C – G_C – 4000 N

Preload class D – G_D – 8000 N

Calculation factor – f – 1.27

Calculation factor – f₁ – 0.98

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.17

Calculation factor – f_HC – 1.04

Preload class A – 505 N/micron

Preload class B – 665 N/micron

Preload class C – 886 N/micron

Preload class D – 1210 N/micron

Mass bearing – 3.636 kg

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