The basic tribological phenomena of journal bearings can be investigated using this unit. A lever with a sliding weight attached to it is connected to the bearing housing. This enables an external moment to be set corresponding to the friction moment generated in the bearing. The journal bearing to be investigated consists of a stainless steel bearing journal and the free-moving gunmetal bearing housing. A three-phase ac motor with a frequency converter for speed control serves as the drive. Another lever, combined with a set of weights, applies the defined load to the bearing. It is possible to view the bearing journal and the lubrication gap through the transparent cover. The continuously adjustable speed, as well as the temperature of the lubricant, is indicated digitally on the control unit. Lubricant is supplied by a drip-feed lubricator that feeds oil to the shaft via two lubrication channels. A drip tray collects the oil that leaks out.
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Three different bearing materials for sliding bearing shells
Stainless steel shaft
Drive by cable drum and weight set.
Base plate of anodised aluminium.
Experiment in sliding bearing friction with various material pairings and comparison with rolling bearings
Box to house the components.
Flywheel of galvanised steel.
Experiments in rotational dynamics possible.
