Moments Disc Apparatus
Product Code : LSK-AM-11105
Moments Disc Apparatus (SKU LSK-AM-11105) is a balanced aluminium disc that turns freely about its centre while loads hang from pins set in its holes, so students can see when clockwise and anticlockwise moments cancel. It serves turning-effect practicals in secondary school, Class 11 and first-year college physics. Science Lab Supplies builds the apparatus at its own works at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and sells it directly to schools, colleges, tender contractors and distributors.
Specifications
Each technical detail of the apparatus appears in the table below. In short, a machine-turned, well-balanced aluminium disc runs on a ball bearing, clamps to a tripod stand in the vertical plane, and carries two scale-pan pins, with a graduated mirror glass scale and plumb line for reading its position.
| Specification | Value |
|---|---|
| SKU | LSK-AM-11105 |
| Disc material | Aluminium |
| Disc finish | Machine turned, well balanced |
| Rotation | About its own axis |
| Bearing | Ball bearing |
| Mounting | Clamps on a tripod stand in the vertical plane |
| Load positions | A number of holes across the disc |
| Load pins | Two pins carrying scale pans |
| Pin placement | Insertable in any desired hole |
| Reading scale | Horizontal graduated mirror glass scale |
| Vertical reference | Plumb line |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Moments Disc Apparatus
The moments disc is used to verify the principle of moments: loads in the two pans are moved between holes until the disc rests with its reference line level against the mirror scale. It is practical mechanics lab equipment in India for school benches as well as college demonstration tables.
- Class 9–10 physics: showing that a body stays in equilibrium when the sum of clockwise moments equals the sum of anticlockwise moments.
- Class 11 rotational motion: relating torque to force and perpendicular distance, with loads from the Physical Weight Box Of 100gm Iron Chrome Plate.
- Comparing a rotating-disc moment test with the force-addition results from the Parallelogram Force Apparatus.
The plumb line gives a true vertical, and reading against the mirror scale removes parallax. Heavier loads can be built up with the Laboratory Slotted Masses, 2.5 kg, within what the pans hold safely.
Standard Scope of Supply
Each Moments Disc Apparatus comes with the machine-turned aluminium disc on its ball bearing, two pins carrying scale pans, the horizontal graduated mirror glass scale and a plumb line. Masses for the pans are not part of the set; they can be listed as a separate line on the same quotation.
Packing, MOQ and Lead Time
Quotations can cover one apparatus for a demonstration bench or a full set for every student group. Each one gives the packing method, delivery time and price for the quantity you request, and you are welcome to ask for the moments disc price in India alongside masses or force tables.
Science Lab Supplies holds an Importer-Exporter Code and is able to ship to buyers in Vietnam, Malaysia, Peru, Egypt, Iraq and Nigeria. Send your list through the contact page, collect items in the enquiry cart, or use the lab tender page for formal bids.
Frequently Asked Questions
What does the moments disc demonstrate?
It demonstrates the principle of moments. Loads in two scale pans are placed on pins at different holes, and the disc settles in balance when the clockwise and anticlockwise turning effects about its axis are equal.
Why is the disc mounted on a ball bearing?
The ball bearing lets the machine-turned aluminium disc rotate freely about its axis, so small differences in moment show up as movement rather than being hidden by friction at the pivot.
What are the mirror scale and plumb line for?
The horizontal graduated mirror glass scale lets students line up the disc without parallax, while the plumb line provides a vertical reference for setting the apparatus and checking its balanced position.
Is Science Lab Supplies the manufacturer or a trader?
It is the manufacturer. The moments disc is produced in its Saha, Ambala factory, so each quotation is issued by the maker itself and not passed through an intermediate trading firm.
Related Moments, Lever and Force Apparatus
These products cover the same turning-effect, lever and force-balance topics, from other moment discs and levers to a force table, so a complete mechanics bench can be put together on one quotation from the Applied Mechanics and Physics Lab ranges.
- Disk for the Balance of Moments — disc of at least 245 mm on a triangular base, four pins with scale pans and 10 hooked weighing stones.
- Apparatus for Demonstrating the Moment of Force — 245 mm disc on a 700 mm stand, with 1 N and 2 N dynamometers.
- Lever/Force into Force Arm Apparatus — half-metre aluminium strip on an agate knife edge, printed 25-0-25 cm.
- Lever with Supporting Stand — 52 cm calibrated lever on a 42 cm stand.
- Lever Apparatus — 100 cm lever for first-, second- and third-class lever set-ups, with masses.
- Demonstration Lever Balance — balance arm with equidistant holes for scale pans, needle and protractor.
- Universal Force Table — 40 cm aluminium disc graduated in 360 degrees, with four sliding clamp pulleys.
Browse the full Applied Mechanics range, the Physics Lab range for more mechanics demonstrators, or all physics lab equipment.
Last updated: 9 October 2026
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