Journal Bearing Apparatus
Product Code : JA-FMAHLE-7327
The Journal Bearing Apparatus (SKU JA-FMAHLE-7327) shows hydrodynamic lubrication in practice: a plain steel shaft turns inside a loaded bearing and the oil film pressure is read at 16 tappings on a manometer. JaincoLab builds this journal bearing apparatus for theory of machines and tribology practicals in mechanical engineering colleges, polytechnics and technical training institutes, where students plot the pressure profile of the lubricating oil against load and speed.
Specifications
The apparatus combines a steel shaft driven directly by an FHP motor, a speed control unit that runs the motor in either direction, a bearing freely supported on the shaft and sealed at the motor end, a loading arm beneath the bearing and 16 pressure tappings piped to the manometer.
| Product | Journal Bearing Apparatus |
| SKU | JA-FMAHLE-7327 |
| Shaft and drive | Plain steel shaft running in the bearing, driven directly by an FHP motor |
| Speed control | Speed control unit; motor runs in both directions |
| Bearing | Freely supported on the shaft and sealed at the motor end |
| Loading | Weights attached to an arm supported beneath the bearing |
| Pressure tappings | 12 equally spaced around the circumference and 4 along the axis |
| Pressure reading | Manometer connected by PU tubing; all tubes observed at the same time |
| Electric supply | 230 V AC, single phase |
| Bench area (as listed) | 1.5 x 1.5 x 4 m |
| Oil required | SAE 40, about 5 litres |
| Also required | Tachometer to measure the journal rpm |
Applications of the journal bearing apparatus
The journal bearing apparatus lets students watch the oil film pressure build up around and along a loaded bearing as speed and load change, which makes it a standard set-up for lubrication and theory of machines practicals in degree and diploma mechanical engineering laboratories.
- Studying the pressure profile of the lubricating oil at different loads and speeds
- Measuring the frictional torque and the power transmitted
- Plotting Cartesian and polar pressure distribution curves
- Theory of machines and tribology practicals for B.E./B.Tech and polytechnic mechanical engineering courses
Scope of supply and ordering
The listing covers the journal bearing apparatus with its FHP motor drive, speed control unit, loading arm, 16 pressure tappings and the manometer with PU tubing. SAE 40 oil and a tachometer are listed as items the laboratory needs for the tests. Accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation for the number of units and the delivery destination. JaincoLab supplies single set-ups as well as complete theory of machines laboratories for engineering colleges, polytechnics and tender orders.
Frequently asked questions
How many pressure tappings does the bearing have?
Sixteen: 12 equally spaced around the circumference and 4 along the axis, all connected to the manometer by PU tubing.
Can the shaft run in both directions?
Yes. The FHP motor is controlled by a speed control unit and can be run in either direction.
What utilities does the laboratory need?
A 230 V AC single-phase supply, about 5 litres of SAE 40 oil and a tachometer to measure the journal speed.
Related products
- Michell Tilting Pad Bearing Apparatus
- Cam Analysis Apparatus
- Static and Dynamic Balancing Apparatus
- Universal Vibration Apparatus
More theory of machines and fluid engineering set-ups are listed in the JaincoLab fluid mechanics lab equipment range.
Request a quote
To order the Journal Bearing Apparatus, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.
