BT4B 332078/HA4 SKF

Kích thước và Thông số kỹ thuật của Vòng bi côn 4 dãy, cấu hình TQO BT4B 332078/HA4 SKF:

d – 105 mm

D – 160 mm

B – 26 mm

d₁ – 121.9 mm

d₂ – 121.9 mm

D₁ – 143.1 mm

b – 2.4 mm

C₁ – 14.1 mm

C₂ – 6.2 mm

C₃ – 5 mm

r_1,2 – min. – 2 mm

r_3,4 – min. – 1 mm

a – 44 mm

d_a – min. – 114 mm

d_b – min. – 114 mm

D_a – max. – 151 mm

D_b – max. – 155 mm

r_a – max. – 2 mm

r_b – max. – 1 mm

d_n – 125.6 mm

Basic dynamic load rating – C – 90.4 kN

Basic static load rating – C₀ – 93 kN

Fatigue load limit – P_u – 3.4 kN

Limiting speed for grease lubrication – 7500 r/min

Limiting speed for oil lubrication – 12000 mm/min

Ball – D_w – 17.462 mm

Ball – z – 21

G_ref – 20.4 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 – 560 N

Preload class B – G_B – 1120 N

Preload class C – G_C – 2240 N

Preload class D – G_D – 4480 N

Calculation factor – f – 1.15

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_2D – 1.08

Calculation factor – f_HC – 1

Preload class A – 279 N/micron

Preload class B – 365 N/micron

Preload class C – 484 N/micron

Preload class D – 655 N/micron

Mass bearing – 1.592 kg

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