PG-2 1Ł

Journal bearing tester with constant orientation load vector

The test rig PG II 1Ł is designed for the evaluation of the characteristics of journal bearings. Load/velocity conditions can be controlled separately pre- or in-test, allowing for both, steady- and dynamic – state tests. Extremely low relative velocity and start/stop cycle investigation can also be performed. The rig’s lubricating system can handle various media, inclusive of water-based fluids and modern, synthetic, environmentally friendly lubricants. The system is sealed, with forced circulation and the test bearing running inside a fluid – tight encapsulation, facilitating full separation of the tested bearing from ambient influence. The test bearing module is equipped with a hydrostatic support for full self-alignment and near-zero transverse reactions at the support. The load applicator device is also hydrostatic.

The stand is equipped with a customized friction force/torque sensor, providing the sensitivity required to successfully study even the extremely low friction modern designs. The main drive system to the test journal is fully integrated with the control system to allow for accurate control over the rotational velocity.

Tilting torque of controlled magnitude can be applied to the tested bearing. The stand is fit for all types of journal (radial) bearings, inclusive of ceramic, polymeric and natural material based.