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Air Bearing Apparatus
Air Bearing Apparatus (Product Code: SLE/ETM/01) is a bearing trainer used to show how a pressurised air film forms between a spinning shaft and its bush and supports load, in theory of machines and tribology laboratories. Students set shaft speed through a belt-driven motor drive module, load the bush by hand against a load cell, and read film pressure at tappings spaced evenly around the bush on a multichannel digital display. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM engineering lab equipment manufacturer, at its own factory in Ambala, India.
Key Details
| Parameter | Detail |
|---|---|
| Drive | Variable-speed motor turning a belt drive to a precision bearing shaft |
| Shaft | High-quality surface finish; spins inside a vertically loaded bush |
| Bearing bush | Pressure tappings equally spaced around its circumference |
| Pressure display | Multichannel digital pressure display unit connected to the tappings |
| Loading | Hand-operated load control with a bearing bush load cell |
| Motor Drive Module | Varies bearing speed; displays bearing speed and the load at the load cell (speed sensor and load cell connect to it) |
| Instrument Frame | Holds the Motor Drive Module and Pressure Display Module, with extra space for an optional frame-mounted data acquisition unit |
| Product code | SLE/ETM/01 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Air Bearing Apparatus Used For?
The apparatus lets students see the pressure distribution that allows a journal bearing to carry load without metal-to-metal contact. With the shaft running at a chosen speed, they read each tapping on the multichannel display, plot pressure against angular position around the bush, and repeat at other speeds and loads. Comparing the area under the pressure curve with the load cell reading links the measured film pressure to the load the bearing supports.
Typical exercises cover how peak pressure and its position shift as load rises, how speed affects the film’s load capacity, and where the film starts to break down at low speed. Bring the shaft up to speed before adding load, increase the hand-operated load in small steps, and let the display settle before recording. This makes it useful engineering educational equipment in India for mechanical engineering, tribology and machine design courses.
What to Specify When Ordering
- Whether the optional frame-mounted data acquisition unit is required (ask us about availability)
- Number of sets for your laboratory
- Whether related bearing apparatus, such as the Journal Bearing Demonstration, should be quoted together
OEM Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, and the company is the OEM (original equipment manufacturer) of this air bearing apparatus. It builds and assembles the unit at its own licensed factory at Saha, Ambala, Haryana, India, rather than buying it in from a trader, and supplies it factory-direct to engineering colleges, universities, polytechnics, dealers and importers.
Because the maker handles your order directly, questions about the motor drive module, the pressure display or replacement parts go straight to the people who build them — just ask us. Read more on the ScienceLab company profile.
Related Theory of Machines Equipment
Apparatus for a complete bearings and tribology practical:
- Journal Bearing Demonstration — an oil-lubricated journal bearing for comparing liquid and gas films.
- Michell Pad Apparatus — hydrodynamic lubrication in a tilting-pad bearing.
- Hertzian Contact Apparatus — contact between two surfaces pressed together without a separating film.
- Whirling of Shaft Apparatus — the dynamic behaviour of shafts running at speed.
Browse all apparatus in the Theory of Machines category.
Frequently Asked Questions
What does the Air Bearing Apparatus measure?
The Air Bearing Apparatus measures film pressure at tappings equally spaced around the bearing bush, together with shaft speed and the load applied to the bush, so students can relate the pressure distribution to speed and load.
How is load applied to the bearing?
Load on the Air Bearing Apparatus is applied with a hand-operated load control acting on the vertically loaded bush, and a load cell measures it. The Motor Drive Module displays the measured load alongside the bearing speed.
How is shaft speed controlled?
The Air Bearing Apparatus uses a variable-speed motor and belt drive to turn its precision bearing shaft. The Motor Drive Module lets the user vary bearing speed and shows the value read from a speed sensor.
Can results be logged to a computer?
The Air Bearing Apparatus has an Instrument Frame with extra space for an optional frame-mounted data acquisition unit. Ask us about data acquisition availability when you enquire, since it is an option rather than part of the basic unit.
Who manufactures the Air Bearing Apparatus?
The Air Bearing Apparatus is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory in Saha, Ambala, Haryana, India, and is supplied factory-direct to institutions in India and international markets.
Is a calibration certificate available?
Calibration-certificate availability for the Air Bearing Apparatus load cell and pressure display should be discussed with us before ordering. Share your documentation requirements through the contact page and we will confirm what can be provided.
What does a quotation request need?
For an Air Bearing Apparatus quotation, state the number of sets, whether the optional data acquisition unit is needed, and the delivery location. Send these through the contact page or add the apparatus to the enquiry cart.
Request a Quote
Quotations for the Air Bearing Apparatus come directly from the manufacturer. Send your requirements through the contact page or add the apparatus to the enquiry cart.
Last updated: 24 September 2026
