SKF 71921 CD/HCP4AL Bearing

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SKF 71921 CD/HCP4AL Bearing Description

We supply various of SKF 71921 CD/HCP4AL bearings. bearings is purity material and high precision , the varieties of SKF bearings is up to thousands of species .SKF 71921 CD/HCP4AL bearings is known as ” the food of machinery industry” and widely used in different environment and mechanical.The purpose of SKF 71921 CD/HCP4AL bearings is the operation and control. In order to ensure the smooth operation and normally rotation,SKF 71921 CD/HCP4AL bearings inquire deeply into the running of the machine and friction phenomenon .SKF 71921 CD/HCP4AL bearings is widely used in automobile, motor, gear, injection molding machines, machine tools, mining machinery, engineering machinery, motorcycles, office equipment, paper making machinery, pumps and compressors, wind power generator and so on.The shipment of SKF 71921 CD/HCP4AL bearings will be arranged timely for we have a large stock of SKF 71921 CD/HCP4AL bearings in HongKong.

SKF 71921 CD/HCP4AL Bearing Specification

Bearing number : 71921 CD/HCP4AL

Size (mm) : 105x145x20

Brand : The brand you need

Bore Diameter (mm) : 105

Outer Diameter (mm) : 145

Width (mm) : 20

Bearing dimensions and specification in ALIER catalogue:

d – 105 mm

D – 145 mm

B – 20 mm

d₁ – 117.3 mm

d₂ – 117.3 mm

D₁ – 132.7 mm

b – 2.3 mm

C₁ – 10.9 mm

C₂ – 3.9 mm

C₃ – 3.2 mm

r_1,2 – min. – 1.1 mm

r_3,4 – min. – 0.6 mm

a – 26.8 mm

d_a – min. – 111 mm

d_b – min. – 111 mm

D_a – max. – 139 mm

D_b – max. – 141 mm

r_a – max. – 1 mm

r_b – max. – 0.6 mm

d_n – 120.6 mm

Basic dynamic load rating – C – 61.8 kN

Basic static load rating – C₀ – 69.5 kN

Fatigue load limit – P_u – 2.6 kN

Limiting speed for grease lubrication – 10000 r/min

Limiting speed for oil lubrication – 16000 mm/min

Ball – D_w – 12.7 mm

Ball – z – 27

G_ref – 11.1 cm3

Calculation factor – f₀ – 16.4

Preload class A – G_A – 230 N

Preload class B – G_B – 460 N

Preload class C – G_C – 920 N

Preload class D – G_D – 1840 N

Calculation factor – f – 1.25

Calculation factor – f₁ – 1

Calculation factor – f_2A – 1

Calculation factor – f_2B – 1.07

Calculation factor – f_2C – 1.12

Calculation factor – f_2D – 1.18

Calculation factor – f_HC – 1.04

Preload class A – 122 N/micron

Preload class B – 168 N/micron

Preload class C – 239 N/micron

Preload class D – 350 N/micron

Mass bearing – 0.699 kg

Tags :  ALIER , 105x145x20