S7216 ACD/P4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S7216 ACD/P4A SKF:

d – 260 mm

D – 360 mm

B – 46 mm

d₁ – 291.8 mm

d₂ – 291.8 mm

D₁ – 328.2 mm

r_1,2 – min. – 2.1 mm

r_3,4 – min. – 1.1 mm

a – 95.5 mm

d_a – min. – 271 mm

d_b – min. – 271 mm

D_a – max. – 349 mm

D_b – max. – 354 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 299.7 mm

Basic dynamic load rating – C – 265 kN

Basic static load rating – C₀ – 400 kN

Fatigue load limit – P_u – 9.6 kN

Limiting speed for grease lubrication – 2800 r/min

Limiting speed for oil lubrication – 4300 mm/min

Ball – D_w – 30.162 mm

Ball – z – 29

G_ref – 150 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 – 1650 N

Preload class B – G_B – 3300 N

Preload class C – G_C – 6600 N

Preload class D – G_D – 13200 N

Calculation factor – f – 1.24

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 – 616 N/micron

Preload class B – 807 N/micron

Preload class C – 1071 N/micron

Preload class D – 1455 N/micron

Mass bearing – 12.2 kg

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