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Journal Bearing Apparatus
JOURNAL BEARING APPARTUS
The MECHMATICS journal bearing apparatus for investigating the distribution of pressure in slide bearings illustrates the principle of hydrodynamic lubrication.
The distribution of pressure and the carrying capacity can be determined on a sliding bearing model at different bearing loads and speeds. The sliding bearing consists of a bearing journal driven by an electrical motor and the freely moving bearing housing. The bearing is loaded with different, interchangeable weights.
In order to view the shifting of the bearing journal in operation as clearly as possible, the model has a large gap and a transparent housing. Both the radial and axial distribution of pressure can be recorded in the bearing gap at 12 measuring points around its perimeter and 5 along the length. The measurements are shown by means of 16 tube manometers mounted on a board.
1. Journal bearing
- Nominal bearing diameter: 55 mm
- Bearing gap: 2.5 mm
- Bearing width:75
- Power output: 180 W
- Max. speed: 2500 rpm
- Variable Speed Controller
- Forward- Reverse Switch
3. Length of manometer tubes: 1700 mm
4. Oil viscosity class: SAE 20 W 40
5. Total oil volume: 3.5 L
6. Set of weights: 300 gm (2 nos.)
7. Digital RPM Indicator