S71917 ACB/HCP4A SKF

Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71917 ACB/HCP4A SKF:

d – 20 mm

D – 37 mm

B – 9 mm

d₁ – 25.65 mm

d₂ – 24.4 mm

D₁ – 31.49 mm

r_1,2 – min. – 0.3 mm

r_3,4 – min. – 0.15 mm

a – 8.5 mm

d_a – min. – 22 mm

d_b – min. – 22 mm

D_a – max. – 35 mm

D_b – max. – 36.2 mm

r_a – max. – 0.3 mm

r_b – max. – 0.15 mm

d_n – 26.7 mm

Basic dynamic load rating – C – 4.9 kN

Basic static load rating – C₀ – 2.4 kN

Fatigue load limit – P_u – 0.102 kN

Limiting speed for grease lubrication – 68000 r/min

Limiting speed for oil lubrication – 106000 mm/min

Ball – D_w – 4.762 mm

Ball – z – 14

G_ref – 0.5 cm3

Calculation factor – f₀ – 7.8

Preload class A – G_A – 26 N

Preload class B – G_B – 79 N

Preload class C – G_C – 157 N

Calculation factor – f – 1.04

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.05

Calculation factor – f_2C – 1.09

Calculation factor – f_HC – 1.01

Preload class A – 20 N/micron

Preload class B – 31 N/micron

Preload class C – 43 N/micron

Mass bearing – 0.032 kg

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