Abstract
Wear tests were performed on a large-scale test specimen, used in bearing applications with diameters up to 1 m, such as shipbuilding, off shore applications, barrage installations etc. Special designs of bearing liner, or lubrication groove patterns are impossible to scale down in classical small test specimen wear apparatus. Composite materials filled with fibres become anisotropic when using a small test specimen. Two examples of test series clearly illustrate the use and applications of a large test rig, built for loads up to 6500 kN. In one test program, the behaviour of a bronze-Inconel combination has been investigated under different conditions: dry running, grease lubrication in an ambient environment and grease lubrication in seawater. Initiated firstly by accident, the lubrication cut-off behaviour has been further investigated in detail. A comparison with small scale tests revealed that seawater had a different influence. In a second test programme, glass fibre thermoplastic discs, reinforced with a steel core, were tested running against chromium-plated steel. Wear rate was strongly influenced by contact pressure. Some remarkable temperature cycles could be observed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
