No.

Features

Illustrate

Unit

Copper based

 Copper & iron based 

Iron based

1

Density

g/cm3

6.5-7.2 

         6.0-6.7

5.9-6.5

2

Surface porosity

/

After heated in lubricating oil from the sliding surface

3

Noise (distance 50 mm)

db

below  20

4

Abrasion loss

m

below  15

5

Oil Content Rate

V%

above 18

6

Pressure stains strength

Mpa

above 150

      above 250

above 280

7

Hardness

MHV

60-90 

              60-90 

60-110

8

Friction coefficient 

/

below 0.15 

     below 0.25

below 0.25

9

Life

h

above 2000