Tribological arrangement

Abstract

Arrangement comprising parts which rub against each other, in which arrangement the contacting surface of the one part comprises a polyketone and the contacting surface of the other part comprises a polymer.

I claim as my invention: 
     
       1. A tribological arrangement wherein at least two parts, a first part and a second part which are in contact at their surfaces, said first part consists essentially of an aliphatic polyketone while the second part consists essentially of a polymer which is not an aliphatic polyketone. 
     
     
       2. The arrangement of claim 1 wherein the polyketone is a linear alternating polymer which has been prepared from carbon monoxide and one or more olefinically unsaturated compounds. 
     
     
       3. The arrangement of claim 2 wherein the unsaturated compound is selected from the group consisting of ethene, propene, butene, and combinations thereof. 
     
     
       4. The arrangement of claim 1 wherein the polymer which is not an aliphatic polyketone is comprised of polyacetal. 
     
     
       5. The arrangement of claim 4 wherein the polyacetal is polyoxymethylene. 
     
     
       6. The arrangement of claim 1 further comprising an internal lubricant. 
     
     
       7. The arrangement of claim 2 further comprising an external lubricant. 
     
     
       8. The arrangement of claim 1 comprising a set of gears. 
     
     
       9. The arrangement of claim 1 comprising a bearing.