Values of Cwear for the timbers and lubrication treatments dealt with during the experiements are tabulated below:
Wood Type |
Cwear dry |
Cwear oil impregnated |
Cwear greased |
Cwear oil lubricated |
African Blackwood |
47 |
n.a. |
116 |
n.a. |
Msaraka |
44 |
84 |
98 |
113 |
E.A.Afrormosia |
40 |
n.a. |
80 |
n.a. |
African Mahogany |
9 |
n.a. |
80 |
n.a. |
Knobthorn |
3 |
n.a. |
78 |
n.a. |
Podo |
3 |
n.a. |
67 |
n.a. |
Brown Olive |
0.6 |
n.a. |
78 |
n.a. |
Table III - Values of wear coefficient (Cwear) for various Tanzanian timbers and lubrication treatments