Wheel And Axle, On Stand
Product Code : EL-AM-10334
Quick answer: The Wheel and Axle, on Stand has two grooved, polished wooden wheels of 7.5 cm and 12 cm diameter fixed rigidly together and turning on steel centres on a wooden base. With its cord and hooks, it is used to find the mechanical advantage and efficiency of a wheel and axle. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Component | Specification |
|---|---|
| Wheels | Two polished wooden wheels with grooves, 7.5 cm and 12 cm diameter |
| Arrangement | Wheels fixed rigidly together |
| Mounting | Steel centres on a wooden base |
| Supplied with | Cord and hooks |
| Weights | Not included |
How the wheel and axle experiment is done
In a wheel and axle, an effort applied by a cord on the larger wheel lifts a load hung from a cord on the smaller one, and both turn together. Taking moments about the axis, effort x R = load x r at balance, so the ideal mechanical advantage is R/r. For the 12 cm and 7.5 cm wheels this is 12/7.5 = 1.6, and the velocity ratio, the distance moved by the effort divided by the distance moved by the load, has the same value.
- Wind one cord round the groove of the 12 cm wheel and another, in the opposite sense, round the 7.5 cm wheel, and fit a hook to each.
- Hang a known load on the cord from the smaller wheel.
- Add weights to the effort hook until the load rises slowly at steady speed, and record the effort.
- Calculate the actual mechanical advantage (load/effort) and the efficiency (actual MA divided by the velocity ratio, x 100 percent).
- Repeat with several loads and plot effort against load.
The actual mechanical advantage is lower than 1.6 because of friction at the steel centres, and it moves towards the ideal value as the load increases, since friction becomes a smaller share of the effort.
Key features
- Two polished wooden wheels of 7.5 cm and 12 cm diameter, fixed rigidly together
- Grooved rims keep each cord in line
- Steel centres on a wooden base for smooth rotation
- Cord and hooks supplied; weights are ordered separately
- Ideal mechanical advantage of 1.6 from the wheel diameters
Documentation and supply
Installation instructions and a manual are supplied with the apparatus. Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the wheel and axle at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Applied Mechanics products
- Universal Force Table (EL-AM-10333)
- Maxwell Wheel (EL-AM-10335)
- Moments Disc Apparatus (EL-AM-10332)
- Whirling Table (EL-AM-10336)
- Fletcher Trolley (EL-AM-10331)
- Parallelogram Force Apparatus (EL-AM-10330)
The full range is in the Applied Mechanics section of the Physics Lab range.
Frequently asked questions
What does the wheel and axle apparatus demonstrate?
It demonstrates the principle and mechanical advantage of the wheel and axle as a simple machine.
What are the wheel diameters?
7.5 cm and 12 cm; the two wheels are fixed rigidly together, giving an ideal mechanical advantage of 1.6.
Are weights included with the wheel and axle?
No. It is complete with cord and hooks, but weights are not supplied.
What is the price of the wheel and axle?
Prices are not published on the website. Add the wheel and axle to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-AM-10334 and the quantity, to receive a quotation.
Does Lab Exports manufacture the wheel and axle?
Yes. Lab Exports manufactures the wheel and axle at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-AM-10334.
Request a quote
Email [email protected] with the house code EL-AM-10334 and the quantity, or add the wheel and axle to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
