Specific wear rate nominal point contact
To be replaced for pin on disc !!!
Scar radius (r)
Mass loss (m)
Wear depth (h).
R
1
10
-3
m
m
10
-6
kg
R
1
10
-3
m
r
10
-3
m
rho
kg/m
3
h
10
-6
m
F
N
F
N
F
N
s
m
s
m
s
m
V
10
-12
m
3
V
10
-12
m
3
V
10
-12
m
3
k
10
-15
m
2
/N
k
10
-15
m
2
/N
k
10
-15
m
2
/N
Symbols
R
1
Ball radius
[m]
r
scar radius
[m]
F
Load
[N]
s
distance (= v·t)
[m]
m
mass loss
[kg]
rho
density
[kg/m
3
]
h
wear depth
[m]
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